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CARBOHYDRAZIDE (1,3-DIAMINOUREA)

Carbohydrazide (1,3-Diaminourea) is used chemical fiber industry as crosslinking agent of elastic fiber.
As chemical raw materials and chemical intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicide, plant growth regulator, dye and other industries.

CAS Number: 497-18-7
EC Number: 207-837-2
MDL number: MFCD00007591
Chemical formula: CH6N4O
Molar mass: 90.09 g/mol

SYNONYMS:
Carbohydrazide, 497-18-7, Carbonic dihydrazide, 1,3-Diaminourea, Carbonohydrazide, Carbazide, Carbodihydrazide, Hydrazine, carbonyldi-, Hydrazine, carbonylbis-, Carbazic acid, hydrazide, Urea, N,N'-diamino-, carbonyl dihydrazine, Semicarbazide, 4-amino-, Carbonic acid, dihydrazide, Cabazide, Karbazid, Hydrazinecarboxamide, N-amino-, Urea, 1,3-diamino-, Hydrazinecarboxylic acid, hydrazide, 1,3-Diaminomocovina, Carbonohydrazid, carbonodihydrazide, NSC 1934, N,N'-diaminourea, 4-aminosemicarbazide, carbonylbis-hydrazine, hydrazinecarbohydrazide, N-aminohydrazinecarboxamide, W8V7FYY4WH, N-aminohydrazine carboxamide, hydrazide hydrazinecarboxylic acid, NSC-1934, EINECS 207-837-2, UNII-W8V7FYY4WH, BRN 1747069, AI3-52397, carbonyldihydrazide, Urea,3-diamino-, Urea,N'-diamino-, Carbohydrazide, 98%, 1,3-bis(azanyl)urea, WLN: ZMVMZ, CARBOHYDRAZIDE [MI], EC 207-837-2, 4-03-00-00240 (Beilstein Handbook Reference), DTXSID5038757, CHEBI:61308, NSC1934, O C (N H N H2)2, AMY40845, MFCD00007591, ZINC64634060, AKOS003193931, DB-029568, CS-0149890, FT-0606617, EN300-20051, E77171, A827826, Q5037885, W-106011, 4702-23-2, carbohydrazide, carbonic dihydrazide, carbazide, carbonohydrazide, carbodihydrazide, hydrazine, carbonyldi, hydrazine, carbonylbis, carbazic acid, hydrazide, semicarbazide, 4-amino carbonic acid, dihydrazide, C-H6-N4-O, H2NNHC(=O)NHNH2, carbazic acid, hydrazide, carbazide, cabazide, carbodihydrazine, carbonic acid, dihydrazide, carbonic dihydrazide, carbonohydrazide, 1, 3-diaminourea, 1, 3-diaminourea, hydrazine, carbonyldi-, semicarbazide, 4-amino, semicarbazide, 4-amino-, urea, 1, 3-diamino-, urea, 1, 3-diamino-, 1,3-Diaminourea, Carbazic acid, hydrazide, Carbazide, Carbodihydrazide, Carbonic acid, dihydrazide, Carbonohydrazide, Hydrazine, carbonylbis-, Hydrazine, carbonyldi-, Hydrazinecarboxamide, N-amino-, Hydrazinecarboxylic acid, hydrazide, Semicarbazide, 4-amino-, Urea, 1,3-diamino-, Urea, N,N'-diamino-, Carbonic dihydrazide, UN3077, Carbonic dihydrazide, Carbazide, Carbodihydrazide, Carbonic acid, dihydrazide, Carbonohydrazide, Hydrazine, carbonylbis-, Hydrazinecarboxamide, N-amino-, Hydrazinecarboxylic acid, hydrazide, Urea, N,N'-diamino-, Carbazic acid, hydrazide, Hydrazine, carbonyldi-, Semicarbazide, 4-amino-, Urea, 1,3-diamino-, 1,3-Diaminourea, Cabazide, 1,3-Diaminomocovina, Karbazid, NSC 1934, carbonyl dihydrazine, Carbohydrazide, 1,3-diaminourea, Carbonic dihydrazide, CARBAZIDE, Carbonohydrazide, 1,3-DIAMINOUREA, Carbodihydrazide, carbonyl dihydrazine, Cabazide, Karbazid, CARBOHYDRZIDE, CARBOHYDRAZIDE, 1,3-diamino-ure, CBH, Cabazide, Carbazide, Carbohydrozide, Carbohydrazide, 1,3-diaminourea, 1,3-diamino-ure, 1,3-DIAMINOUREA, carbonohydrazide, 1,3-Diaminomocovina, Carbonic dihydrazide, 4-amino-semicarbazid, CHZ Oxygen Scavenger, cardonic dihydrazide, 4-aminosemicarbazide, 4-Aminoisosemicarbazide, 497-18-7, Carbonic dihydrazide, 1,3-Diaminourea, Carbonohydrazide, Carbazide, Carbodihydrazide, Hydrazine, carbonyldi-, Hydrazine, carbonylbis-, Carbazic acid, hydrazide, carbonyl dihydrazine, Semicarbazide, 4-amino-, Carbonic acid, dihydrazide, Cabazide, CBH, Cabazide, Carbazide, Carbohydrozide, Carbohydrazide, 1,3-diaminourea, 1,3-diamino-ure, 1,3-DIAMINOUREA, carbonohydrazide, 1,3-Diaminomocovina, Carbonic dihydrazide, 4-amino-semicarbazid, CHZ Oxygen Scavenger, cardonic dihydrazide, 4-aminosemicarbazide, 4-Aminoisosemicarbazide, Carbonic dihydrazide, Carbazide, Carbodihydrazide, Carbonic acid, dihydrazide, Carbonohydrazide, Hydrazine, carbonylbis-, Hydrazinecarboxamide, N-amino-, Hydrazinecarboxylic acid, hydrazide, Urea, N,N'-diamino-, Carbazic acid, hydrazide, Hydrazine, carbonyldi-, Semicarbazide, 4-amino-, Urea, 1,3-diamino-, 1,3-Diaminourea, Cabazide, 1,3-Diaminomocovina, Karbazid, NSC 1934
1,3-Diaminourea, Carbodihydrazide, Carbonohydrazide, N,N′-Diaminourea, carbohydrazide, carbonic dihydrazide, carbazide, carbonohydrazide, carbodihydrazide, hydrazine, carbonyldi, hydrazine, carbonylbis, carbazic acid, hydrazide, semicarbazide, 4-amino, carbonic acid, dihydrazide
Carbohydrazide, Hydrazinecarboxamide, Carbodihydrazide, Carbonic Dihydrazide, Cabazide, Carbonohydrazid, Carbonodihydrazide, Carbonyl Dihydrazine, Hydrazide Hydrazinecarboxylic Acid, 1,3-Diaminomocovina [Czech], 1,3-Diaminourea, Carbazic acid, hydrazide, Carbazide, Carbodihydrazide, Carbonic acid, dihydrazide, Carbonohydrazide, Hydrazine, carbonylbis-, Hydrazine, carbonyldi-, Hydrazinecarboxamide, N-amino-, Hydrazinecarboxylic acid, hydrazide, Karbazid [Czech], Semicarbazide, 4-amino-, Urea, 1,3-diamino-, Urea, N,N'-diamino-, Carbonic dihydrazide, [ChemIDplus] UN3077

Hydrazine carbonate, also known as Carbohydrazide (1,3-Diaminourea), 1,3-diaminourea and Carbohydrazide (1,3-Diaminourea), is very soluble in water and absorbs heat.
Carbohydrazide (1,3-Diaminourea), also called Carbodihydrazide, is a high performance oxygen scavenger which can be used in all types of boilers.

Carbohydrazide (1,3-Diaminourea) is a white, water-soluble solid that decomposes upon melting point around 153°C.
Carbohydrazide (1,3-Diaminourea) is an anti-inflammatory agent that belongs to the group of reactive compounds.
Carbohydrazide (1,3-Diaminourea) has a high resistance to hydrolysis and is stable against oxidation.

Carbohydrazide (1,3-Diaminourea) has been shown to have anti-inflammatory properties in animal models by inhibiting the production of prostaglandins.
The mechanism of this inhibition is not well understood but may be due to Carbohydrazide (1,3-Diaminourea)'s ability to inhibit phospholipase A2, which is responsible for the release of arachidonic acid from phospholipids.

Carbohydrazide (1,3-Diaminourea) has also been shown to have an inhibitory effect on reactive oxygen species (ROS) production in neutrophils.
This activity may be due to its ability to interfere with the activation or deactivation of ROS by binding directly or through hydrogen bonding with their active centers or by acting as a catalyst for ROS production.
Carbohydrazide (1,3-Diaminourea) is the chemical compound with the formula OC(N2H3)2.

Carbohydrazide (1,3-Diaminourea) appears as a white solid that is soluble in water, but not in many organic solvents, such as ethanol, ether or benzene.
Carbohydrazide (1,3-Diaminourea) decomposes upon melting.

A number of carbazides are known where one or more N-H groups are replaced by other substituents.
They occur widely in the drugs, herbicides, plant growth regulators, and dyestuffs.
Carbonyl dihydrazine is a Carbohydrazide (1,3-Diaminourea) obtained by formal condensation between hydrazinecarboxylic acid and hydrazine.

It is a Carbohydrazide (1,3-Diaminourea) and a one-carbon compound.
Carbohydrazide (1,3-Diaminourea) is functionally related to a hydrazine and a carbazic acid.

USES and APPLICATIONS of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
When used as de-oxidant in boiler, put this product into water or use its water solution, the dosage of 0.5mol or above of Carbohydrazide (1,3-Diaminourea) for 1mol O2 is preferred.
The suitable temperature range is 87.8-176.7℃.

The reaction for Carbohydrazide (1,3-Diaminourea) with O2 is CON4H6+ 2O2= 2N2 + 3H2O + CO2
Carbohydrazide (1,3-Diaminourea) is used in the production of drugs, herbicides, plant growth regulators, dyes, etc
Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine, which has strong reducibility.

Carbohydrazide (1,3-Diaminourea) can be used as an intermediate in the manufacture of energetic materials, and also as a component of explosives and propellants.
The antiseptic of refinery equipment, Carbohydrazide (1,3-Diaminourea) can be used as the deoxidizer of boiler water treatment agent.

Carbohydrazide (1,3-Diaminourea) or Hydrazine Carbonate also finds its application in the field of water treatment can be used as deoxidizer of boiler water, as well as passivator of metal surface to reduce the corrosion rate of metal.
Carbohydrazide (1,3-Diaminourea) reacts with dissolved oxygen in water to form carbon dioxide, nitrogen and water.

In use, powdered Carbohydrazide (1,3-Diaminourea) or Hydrazine Carbonate CAS 497-18-7 can be directly put into water or its aqueous solution can be used.
Carbohydrazide (1,3-Diaminourea) can be used alone or in combination with redox catalysts such as hydroquinone or other quinones and cobalt complexes.

The applicable temperature range of Carbohydrazide (1,3-Diaminourea) is 8-7 degrees, i.e. it is used below the vaporization temperature of water.
Carbohydrazide (1,3-Diaminourea) (CHD) is mainly used as an oxygen scavenger to prevent corrosion especially in boiler feed system.

Carbohydrazide (1,3-Diaminourea) is also used as an intermediate for organic synthesis as well.
Carbohydrazide (1,3-Diaminourea) is widely used in the production of medicines, herbicides, plant growth regulators, dyes, etc.
Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine with strong reducibility.

Carbohydrazide (1,3-Diaminourea) can be used as an intermediate for manufacturing energetic materials, and can also be directly used as a component of explosives and propellants.
Preservatives for refinery equipment, Carbohydrazide (1,3-Diaminourea) can be used as oxygen scavengers for boiler water treatment agents.

Carbohydrazide (1,3-Diaminourea) fiber industry is used as a cross-linking agent for elastic fibers.
As chemical raw materials and chemical intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

Carbohydrazide (1,3-Diaminourea) can be used as a component of rocket propellant, a stabilizer for color development and soap quality, an antioxidant for rubber, a boiler water deoxidizer, and a metal deactivator.
Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine with strong reducibility.

Carbohydrazide (1,3-Diaminourea) can be used as an intermediate for the manufacture of energetic materials, and can also be directly used as a component of rocket explosives and propellants.
As a deoxidizer for boiler water, Carbohydrazide (1,3-Diaminourea) is the most advanced material for deoxidizing boiler water in the world today.

Carbohydrazide (1,3-Diaminourea) has low toxicity, high melting point, and deoxidizing efficiency is far greater than the currently used materials.
Carbohydrazide (1,3-Diaminourea) is an ideal product for safety and environmental protection.

In addition, Carbohydrazide (1,3-Diaminourea) can also be used as a cross-linking agent for elastic fibers in the chemical fiber industry.
As chemical raw materials and chemical intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

Carbohydrazide (1,3-Diaminourea) is also used to make drugs, herbicides, plant growth regulators, and dyestuffs
Carbohydrazide (1,3-Diaminourea) is widely used in the production of pharmaceuticals, herbicides, plant growth regulators, dyes, etc. Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine with a strong reduction.

Carbohydrazide (1,3-Diaminourea) can be not only used as the intermediates for producing energy-containing materials, but also can be used directly as the components of explosives and propellants.
Carbohydrazide (1,3-Diaminourea) can be used as the preservative of refinery equipment and can also be used as the oxygen scavenger of boiler water treatment agent.

Carbohydrazide (1,3-Diaminourea) can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry.
Carbohydrazide (1,3-Diaminourea) can be used as the chemical raw materials and chemical industrial intermediates and is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

Carbohydrazide (1,3-Diaminourea) can be used as the component of the rocket propellant, the stabilizer of color development and soap quality, the antioxidants of rubber, the oxygen scavenger of boiler water, and the passivation agent of metal.
Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine with a strong reduction.

Carbohydrazide (1,3-Diaminourea) can be used as the intermediate of producing energy-containing materials and also be used directly for the components of explosives and rocket propellant.
Carbohydrazide (1,3-Diaminourea) can also be used as the oxygen scavenger of boiler water and is the most advanced materials for scavenging oxygen of boiler water in the world today.

Carbohydrazide (1,3-Diaminourea) has low toxicity, high melting point and a deoxidation efficiency being far greater than the materials currently used.
Carbohydrazide (1,3-Diaminourea) is an ideal product for both safety and environmental protection.

In addition, Carbohydrazide (1,3-Diaminourea) can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry.
Carbohydrazide (1,3-Diaminourea) can also be used as the chemical raw materials and chemical industrial intermediates and is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

As a chemical raw material and chemical intermediate, Carbohydrazide (1,3-Diaminourea) is widely used in the pharmaceutical herbicide plant growth regulator dyes and other industries.
Carbohydrazide (1,3-Diaminourea) has strong reducibility.

Carbohydrazide (1,3-Diaminourea) can be used as energetic material intermediate, it’s widely used in medicine, herbicide and plant growth regulator, dye, etc.
Oxygen Scavenger: Carbohydrazide (1,3-Diaminourea) is commonly used as an oxygen scavenger in boiler feedwater treatment to prevent corrosion caused by dissolved oxygen.

Carbohydrazide (1,3-Diaminourea) helps in maintaining the integrity of the boiler system by reducing oxygen content.
Chemical Synthesis: Carbohydrazide (1,3-Diaminourea) serves as an important intermediate in the synthesis of various chemicals, including pharmaceuticals, agrochemicals, and dyes.

Polymerization: Carbohydrazide (1,3-Diaminourea) is used as a chain extender and cross-linking agent in the polymer industry to modify the properties of certain polymers.
Explosives: Carbohydrazide (1,3-Diaminourea) finds application in the production of explosives due to its ability to release nitrogen gas upon decomposition, which is essential for explosive reactions.

Analytical Chemistry: Carbohydrazide (1,3-Diaminourea) is employed in analytical chemistry as a reagent for the determination of certain metal ions.
Carbohydrazide (1,3-Diaminourea) can be used as oxygen scrubber as direct replacement for Hydrazine in any boiler without the associated safety hazards and handling precautions.

Carbohydrazide (1,3-Diaminourea) is based on volatile chemistry and so leaves no dissolved solids and minimal ammonia to the boiler system.
Carbohydrazide (1,3-Diaminourea) does provide outstanding protection from oxygen corrosion together with excellent feed water and boiler system passivation.

Carbohydrazide (1,3-Diaminourea) reacts directly with oxygen.
Carbohydrazide (1,3-Diaminourea) helps prevent oxygen damage and continues to passivate metal surfaces during wet lay-up.
Carbohydrazide (1,3-Diaminourea) can also be used as a curing agent for epoxide-type resins.

Oxygen scrubber: Carbohydrazide (1,3-Diaminourea) is used to remove oxygen in boiler systems.
Oxygen scrubbers prevent corrosion.
Carbohydrazide (1,3-Diaminourea) has been used to develop ammunition propellants, stabilize soaps, and is used as a reagent in organic synthesis.

Salts of Carbohydrazide (1,3-Diaminourea), such as nitrate, dinitrate and perchlorate, can be used as secondary explosives.
Complex salts of Carbohydrazide (1,3-Diaminourea), like bis(Carbohydrazide (1,3-Diaminourea))diperchloratocopper(II) and tris(Carbohydrazide (1,3-Diaminourea))nickel(II) perchlorate, can be used as primary explosives in laser detonators.

Precursor to polymers: Carbohydrazide (1,3-Diaminourea) can be used as a curing agent for epoxide-type resins.
Photography: Carbohydrazide (1,3-Diaminourea) is used in the silver halide diffusion process as one of the toners.
Carbohydrazide (1,3-Diaminourea) is used to stabilize color developers that produce images of the azo- methine and azine classes.

Carbohydrazide (1,3-Diaminourea) can be used as an oxygen scavenger to prevent corrosion, especially in a boiler feed system, rocket propellant components, color images, and the quality of soap stabilizers, antioxidants rubber, boiler water deoxidants, and metal passivation agents.
Carbohydrazide (1,3-Diaminourea) is also used as an intermediate for organic synthesis.

Oxygen Scrubber: Carbohydrazide (1,3-Diaminourea) plays a crucial role in water treatment systems as an oxygen scrubber.
By removing excess oxygen, Carbohydrazide (1,3-Diaminourea) helps control corrosion and ensures the water treatment process runs smoothly.
Curing Agent: Carbohydrazide (1,3-Diaminourea)’s used as a curing agent for epoxide-type resins, a common material in the production of various plastics, adhesives, and coatings.

Stabilizing Soaps: Carbohydrazide (1,3-Diaminourea) finds its place in soap production as a stabilizing agent.
Reagent in Organic Synthesis: Carbohydrazide (1,3-Diaminourea)’s employed as a reagent in organic synthesis, helping chemists create a wide range of compounds.

Ammunition Propellants: Carbohydrazide (1,3-Diaminourea) is used in the development of ammunition propellants, contributing to the safety and reliability of these critical materials.
Carbohydrazide (1,3-Diaminourea) has strong reducibility.

Carbohydrazide (1,3-Diaminourea) can be used as energetic material intermediate, components of fire explosive and propellant directly; also as refinery equipment of preservatives and boiler water treatment of deoxidizer.
In Chemical fiber industry, Carbohydrazide (1,3-Diaminourea)’s good elastic fiber cross linking agent .As chemical raw materials and chemical intermediates; it’s widely used in medicine, herbicide and plant growth regulator, dye, etc.

Carbohydrazide (1,3-Diaminourea) is widely used in the production of drugs, herbicides, plant growth regulators, dyes, etc
Carbohydrazide (1,3-Diaminourea) is a derivative of hydrazine, which has strong reducibility and can be used as an intermediate in the manufacture of energetic materials, and can also be directly used as a component of explosives and propellants.

Refinery equipment preservatives, Carbohydrazide (1,3-Diaminourea) can be used as boiler water treatment agent oxygen scavenger.
Carbohydrazide (1,3-Diaminourea) is used in the chemical fiber industry as a cross-linking agent for elastic fibers.
As chemical raw materials and chemical intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

Carbohydrazide (1,3-Diaminourea) is useful in the field of water treatment as an oxygen scavenger for boiler water and also as a passivating agent for metal surfaces to reduce the corrosion rate of metals.
Carbohydrazide (1,3-Diaminourea) can react with dissolved oxygen in water to produce carbon dioxide, nitrogen, and water.

When used, powdered Carbohydrazide (1,3-Diaminourea) may be directly put into water, or an aqueous solution thereof may be used.
They can be used alone or in combination with redox catalysts such as hydroquinone or other Quinones, and cobalt complexes.
The Carbohydrazide (1,3-Diaminourea) is suitably used at a temperature in the range of 87.8 to 176.7 ° C., I .e., below the vaporization temperature of water

Oxygen scrubber: Carbohydrazide (1,3-Diaminourea) is used to remove oxygen in boiler systems.
Oxygen scrubbers prevent corrosion.
Precursor to polymers: Carbohydrazide (1,3-Diaminourea) can be used as a curing agent for epoxide-type resins.

Photography: Carbohydrazide (1,3-Diaminourea) is used in the silver halide diffusion process as one of the toners.
Carbohydrazide (1,3-Diaminourea) is used to stabilize color developers that produce images of the azo-methine and azine classes.
Jet fuel: Carbohydrazide (1,3-Diaminourea) can be used as a component in jet fuels, as a large amount of heat is being produced when the material is burned.

Carbohydrazide (1,3-Diaminourea) has been used to develop ammunition propellants, stabilize soaps, and is used as a reagent in organic synthesis.
Salts of Carbohydrazide (1,3-Diaminourea), such as nitrate, dinitrate and perchlorate, can be used as secondary explosives.

Complex salts of Carbohydrazide (1,3-Diaminourea), like bis(Carbohydrazide (1,3-Diaminourea))diperchloratocopper(II) and tris(Carbohydrazide (1,3-Diaminourea))nickel(II) perchlorate, can be used as primary explosives in laser detonators.
Carbohydrazide (1,3-Diaminourea) and its derivatives are versatile intermediates.

They have active applications in organic synthesis for agrochemicals, pharmaceuticals, photographic, heat stabilizers, polymerization catalysts, flame- retardants, blowing agents for plastics, explosives, and dyes.
Recently, hydrazine is applied to LCD (liquid crystal displays) as the fuel to make faster thin-film transistors.

-Oxygen scavenger of the boiler water:
When acting as the oxygen scavenger of boiler water, Carbohydrazide (1,3-Diaminourea) may be directly added into the water while its aqueous solution can also be used.
The usage amount of Carbohydrazide (1,3-Diaminourea) for scavenging 1mol O2 is 0.5mol, and should be appropriately in excess.

The proper temperature range is 87.8-176.7 ℃.
The optimal time for applying Carbohydrazide (1,3-Diaminourea) is after the thermal scavenging of oxygen.

The reaction of oxygen and Carbohydrazide (1,3-Diaminourea) is as follows: CON4H6 + 2O2 = 2N2 + 3H2O + CO2
Carbohydrazide (1,3-Diaminourea) is used as an oxygen scavenger in water treatment for boilers.

PROPERTIES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Carbohydrazide (1,3-Diaminourea) is white crystal powder.
Carbohydrazide (1,3-Diaminourea) is very soluble in water and soluble in alcohol.

Carbohydrazide (1,3-Diaminourea) decomposes on heating or exposure to uv to form ammonia, hydrogen, and nitrogen, which may be explosive with a blue flame when catalyzed by metal oxides and some metals such as platinum or raney nickel.

Carbohydrazide (1,3-Diaminourea) has dibasic and very reactive properties.
Carbohydrazide (1,3-Diaminourea) is used as a component in jet fuels because it produce a large amount of heat when burned.

Carbohydrazide (1,3-Diaminourea) is used as rocket fuel.
Carbohydrazide (1,3-Diaminourea) is used as an oxygen scavenger for water boiler feed and heating systems to prevent corrosion damage.

Carbohydrazide (1,3-Diaminourea) is used as a reducing agent for the recovery of precious metals.
Carbohydrazide (1,3-Diaminourea) is used as a polymerization catalyst and a chain extender in urethane coatings.

Carbohydrazide (1,3-Diaminourea) is used as an auxiliary in photographic industry to prevent discolouration.
Carbohydrazide (1,3-Diaminourea) is used as an intermediate for pharmaceuticals, stabilizers and water treatment chemicals.

NATURE of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Carbohydrazide (1,3-Diaminourea) is a white crystalline powder obtained by crystallization from aqueous ethanol.
Carbohydrazide (1,3-Diaminourea) had a melting point of 153 °c and began to decompose upon dissolution.

Carbohydrazide (1,3-Diaminourea) is very soluble in water, 1% aqueous solution of pH 7.4.
Carbohydrazide (1,3-Diaminourea) is almost insoluble in alcohol, ether, chloroform and benzene.

Carbohydrazide (1,3-Diaminourea) reacts with hydrochloric acid, sulfuric acid, oxalic acid, phosphoric acid and nitric acid to form salts.
The generated chloride is very soluble in water, while the generated sulfate and oxalate are only slightly soluble in water, phosphate and nitrate can not be precipitated and crystallized.

In the presence of nitrous acid, the Carbohydrazide (1,3-Diaminourea) is converted to the compound carbonyl azide which is highly explosive.
The aqueous solution of Carbohydrazide (1,3-Diaminourea) gradually decomposes when it is heated with an acid or a base.

PHYSICAL AND CHEMICAL PROPERTIES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
*character
Carbohydrazide (1,3-Diaminourea) is a white fine short columnar crystals

*solubility
Carbohydrazide (1,3-Diaminourea) is insoluble in ethanol, easily soluble in water, dissolved endothermic

FEATURES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Carbohydrazide (1,3-Diaminourea) is a white crystalline thin and short columnar crystal or white powder at room temperature.
Carbohydrazide (1,3-Diaminourea) is insoluble in alcohol, easily soluble in water with dissolution absorbing heat.
Carbohydrazide (1,3-Diaminourea) is insoluble in alcohol, ether, and benzene.

Owing to that, Carbohydrazide (1,3-Diaminourea) is a kind of derivative of hydrazine and thus having strong reduction ability.
Carbohydrazide (1,3-Diaminourea) is non-toxic, and can replace hydrazine and oximes.

Carbohydrazide (1,3-Diaminourea) has a broad range of application in industry.
For example, Carbohydrazide (1,3-Diaminourea) can be used as the oxygen scavenging agent of boiler water in the field of water treatment and is regarded as most advanced materials for oxygen scavenging of boiler water.

Carbohydrazide (1,3-Diaminourea) has a low toxicity and high melting point with its deoxidizing efficiency being far greater than the current materials used and is a idea product for both safety and environmental protection.

Carbohydrazide (1,3-Diaminourea) can also be used as a rocket propellant components; moreover, owing to that its hydrogen atoms attached to the nitrogen atom is easily substituted by other groups, it can be used as the cross-linking agents of elastic fibers in the textile field, the formaldehyde scavenger, as well as the antioxidant of carotene pigment.

In addition, adding an appropriate amount of Carbohydrazide (1,3-Diaminourea) to the phenol fungicides containing can play a role on preventing discoloration and rancidity.

As a chemical raw material and chemical industry intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

PROPERTIES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Carbohydrazide (1,3-Diaminourea) is a white columnar crystal, dissolved and endothermic.
62.18% nitrogen content, 1% aqueous solution PH = 7.4, no moisture absorption, extremely strong reducibility.
Carbohydrazide (1,3-Diaminourea) reacts with hydrochloric acid, sulfuric acid, oxalic acid, phosphoric acid, and nitric acid to form salts.

The chloride produced is very soluble in water; sulfate and oxalate are slightly soluble in water; phosphate and nitrate cannot precipitate and crystallize.
In the presence of nitrous acid, carbonyl hydrazide will be converted into a highly explosive compound-carbonyl azide CO(N3)2.
Carbohydrazide (1,3-Diaminourea) will be decomposed when the aqueous solution is heated with the acid.

CHARACTERISTICS of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Carbohydrazide (1,3-Diaminourea) (English Carbohydrazide (1,3-Diaminourea)) is also known as carbazide, 1,3-disemicarbazide, Carbohydrazide (1,3-Diaminourea), white fine short columnar crystals or white crystalline powder at room temperature, insoluble in ethanol, easily soluble in water, soluble in endotherm, insoluble in alcohol, ether, benzene, because it is a derivative of hydrazine, it has strong reducibility, non-toxic, and can replace hydrazine hydrate and oxime.

Carbohydrazide (1,3-Diaminourea)has a wide range of uses in industry.
Carbohydrazide (1,3-Diaminourea) can be used as a deoxidizer for boiler water in the field of water treatment.

The most advanced material, Carbohydrazide (1,3-Diaminourea), used for deoxidizing boiler water in the world today.
Carbohydrazide (1,3-Diaminourea) has low toxicity, high melting point, and far greater deoxidizing efficiency.
Carbohydrazide (1,3-Diaminourea) used is an ideal safe and environmentally friendly product.

Carbohydrazide (1,3-Diaminourea) can also be used as a component of rocket propellant; and because the hydrogen atom connected to the nitrogen atom is easily replaced by other groups, in the textile industry. Carbohydrazide (1,3-Diaminourea) can also be used as a crosslinking agent for elastic fibers, a trap for formaldehyde, and an antioxidant for pigments such as carotene.

In addition, adding an appropriate amount of Carbohydrazide (1,3-Diaminourea) to the soap containing phenol fungicides can prevent discoloration and rancidity.
As chemical raw materials and chemical intermediates, Carbohydrazide (1,3-Diaminourea) is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.

BOILER DEOXIDIZER of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
when used as boiler deoxidizer, Carbohydrazide (1,3-Diaminourea) can be put into water or its aqueous solution can be used.
The dosage of 1 molO2 carbonyl hydrazide is 0.5mol and is appropriately excessive.

The applicable temperature range is 87.8-176.7 ℃.
The timing of the use of Carbohydrazide (1,3-Diaminourea) is after thermal oxygen removal.

The reaction of Carbohydrazide (1,3-Diaminourea) and oxygen is as follows: CON4H6 2O2=2N2 3H2O CO2
reference quality standard item index appearance white crystal or white thin short columnar crystal purity% ≥ 98.0% free hydrazine ≤ 250.0mg/L loss on drying ≤ 0.2% PH(12% aqueous solution) 8.45±1.25

PRODUCTION of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Industrially, Carbohydrazide (1,3-Diaminourea) is produced by treatment of urea with hydrazine:
OC(NH2)2 + 2 N2H4 → OC(N2H3)2 + 2 NH3
Carbohydrazide (1,3-Diaminourea) can also be prepared by reactions of other C1-precursors with hydrazine, such as carbonate esters.

Carbohydrazide (1,3-Diaminourea) can be prepared from phosgene, but this route cogenerates the hydrazinium salt [N2H5]Cl and results in some diformylation.
Carbazic acid is also a suitable precursor:
N2NH3CO2H + N2H4 → OC(N2H3)2 + H2O

STRUCTURE of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
The molecule, Carbohydrazide (1,3-Diaminourea), is nonplanar.
All nitrogen centers are at least somewhat pyramidal, indicative of weaker C-N pi-bonding.
The C-N and C-O distances are about 1.36 and 1.25 Å, respectively.

PRODUCTION METHOD of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
1.
354g of diethyl carbonate (3.0mol) and 388g of 85% hydrazine hydrate (6.6mol) are mixed in one step and placed in a 1L round bottom flask (with thermometer).
At the beginning, there is only partial mutual dissolution, shaking the flask until the contents become a single phase.

The reaction in the bottle is as follows: heat is released during the reaction, which makes the temperature rise to about 55 ℃.
Then connect the flask to the fractionation column with a standard sleeve joint.

The fractionation column is filled with Raschig ring.
The thickness of the filler layer is 22cm.

A thermometer is inserted into the column with a water-cooled condenser.
A heating electric furnace with a pressure regulator was used to heat the reaction mixture.

Within 30min after the start of the reaction, the generated ethanol and water are rapidly evaporated, and the subsequent distillate rate slows down.
Continuous heating for 4 hours, distillate 325~350ml of distillate (temperature 85~96 ℃).

The temperature in the bottle rose from 96 ℃ to 119 ℃.
Cool the liquid in the bottle to 20 ℃ and let it stand for at least 1h.

The precipitated carbonyl hydrazide crystals are filtered and separated, and the wet separation is drained as much as possible.
The prepared crude product is about 165g with 60% yield.
If refining is required, it can be processed by recrystallization and the refined product can be washed with ether.

2.
Semi-continuous method
This method is an improvement of one-step method.
The mother liquor after crystallization is recycled and some new raw materials are added, thus significantly improving the yield.

The reaction and the separation of volatile products are still carried out with the device in the one-step process.
The method is briefly described as follows: 856g diethyl carbonate 7.25mol) and 938g 85% hydrated 15.95mol) are shaken and mixed into a single phase liquid to prepare a raw material liquid.

In the initial stage of synthesis, 700g of raw material liquid is taken, fractionation is carried out under the above conditions, alcohol and water mixture (liquid) is distilled, and heating is continued to 119 ℃.
The reaction mixture is cooled and filtered to recover the resulting crude Carbohydrazide (1,3-Diaminourea) product.

Weigh the separated mother liquor, add fresh raw liquid to 700g, and recycle.
The cumulative yield reached 87%.

3. Other preparation methods
① from urea and excess hydrazine reaction.
② Hydrazine reacts with carbonyl chloride (phosgene).
The mixture of isocyanuric acid and hydrazine hydrate was heated and refluxed for 17h to obtain carbonyl hydrazide, and the yield reached 7 1%.

PHYSICAL and CHEMICAL PROPERTIES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
Chemical formula: CH6N4O
Molar mass: 90.09 g/mol
Density: 1.341 g/cm3
Melting point: 153 to 154 °C (307 to 309 °F; 426 to 427 K)
Molecular Weight: 90.09
XLogP3-AA: -1.6
Hydrogen Bond Donor Count: 4
Hydrogen Bond Acceptor Count: 3
Rotatable Bond Count: 0
Exact Mass: 90.05416083

Monoisotopic Mass: 90.05416083
Topological Polar Surface Area: 93.2 Å²
Heavy Atom Count: 6
Formal Charge: 0
Complexity: 45.5
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0

Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
Physical state: crystalline
Color: white
Odor: odorless
Melting point/freezing point:
Melting point/range: 150 - 153 °C - lit.
Initial boiling point and boiling range: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Flash point: No data available

Autoignition temperature: No data available
Decomposition temperature: No data available
pH: 6,7 - 8,3
Viscosity
Viscosity, kinematic: No data available
Viscosity, dynamic: No data available
Water solubility: soluble
Partition coefficient: n-octanol/water: No data available
Vapor pressure: 16 hPa at 20 °C
Density: 1,020 g/cm3 at 20 °C

Relative density: No data available
Relative vapor density: No data available
Particle characteristics: No data available
Appearance: White Crystalline Powder
Assay%: 99.0~99.5%
molecular formula: CH6N4O
molecular weight: 90.08
boiling point: 255-260 °C
melting point: 167.26°C
storage condition: 0-6°C

Molecular Weight: 90.08
Molecular Formula: CH6N4O
Canonical SMILES: C(=O)(NN)NN
InChI: InChI=1S/CH6N4O/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)
InChIKey: XEVRDFDBXJMZFG-UHFFFAOYSA-N
Melting Point: 152-153ºC
Purity: 98 %
Density: 1.02 g/cm3
Appearance: White powder
Storage: 0-6ºC

Hazard Class: 9
Hazard Codes: Xn
Log P: 0.21540
PSA: 93.17
Refractive Index: 1.537
Appearance and Properties: White crystalline powder
Density: 1.02
Melting point: 150-153 °C(lit.)
Refractive index: 1.537

Molecular Formula: CH6N4O
Molar Mass: 90.08
Density: 1.02
Melting Point: 150-153 °C (lit.)
Boling Point: 167.26°C (rough estimate)
Water Solubility: Soluble in water.
Solubility: DMSO (Slightly), Water (Slightly)
Vapor Presure: 0 Pa at 25℃
Appearance: White powder

Color: White
Merck: 14,1804
BRN: 1747069
pKa: 11.81±0.20(Predicted)
Storage Condition: Keep in dark place,Inert atmosphere,2-8°C
Stability: Stable, but may explode if heated.
Incompatible with strong acids, strong oxidizing agents.
Refractive Index: 1.4164 (estimate)
MDL: MFCD00007591

Appearance: white needle-like crystals
Content: ≥99%
Volatile matter: ≤0.15%
Melting point: 150-158℃
Loss on drying: 0.5%max
Melting point: 150-153 °C (lit.)
Boiling point: 167.26°C (rough estimate)
Density: 1.02
vapor pressure: 0 Pa at 25℃

refractive index: 1.4164 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,2-8°C
solubility: DMSO (Slightly), Water (Slightly)
pka: 11.81±0.20(Predicted)
form: Crystalline Powder
color: White
Water Solubility: Soluble in water.
Merck: 14,1804

BRN: 1747069
Stability: Stable, but may explode if heated.
InChIKey: XEVRDFDBXJMZFG-UHFFFAOYSA-N
LogP: -2.94 at 21.6℃
Molecular Formula / Molecular Weight: CH6N4O = 90.09
Physical State (20 °C): Solid
Storage Temperature: Refrigerated (0–10 °C)
Store Under Inert Gas: Store under inert gas
Condition to Avoid: Air Sensitive, Heat Sensitive
CAS RN: 497-18-7

Reaxys Registry Number: 1747069
SDBS (AIST Spectral DB): 5237
Merck Index (14): 1804
MDL Number: MFCD00007591
Linear Formula: CO(NHNH2)2
CAS Number: 497-18-7
Molecular Weight: 90.08
Beilstein: 1747069
EC Number: 207-837-2

MDL Number: MFCD00007591
UNSPSC Code: 12352100
PubChem Substance ID: 24892343
NACRES: NA.22
Physical State: Crystalline
CAS Number: 497-18-7
EC Number (EINECS): 207-837-2
Chemical Name or Material: Carbohydrazide
IUPAC Name: 1,3-Diaminourea

Molecular Formula: CH6N4O
Molecular Weight / Molar Mass: 90.08–90.09 g/mol
Formula Weight: 90.09
Linear Formula: CO(NHNH2)2
SMILES: NNC(=O)NN
InChI: InChI=1/CH6N4O/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)
InChIKey: XEVRDFDBXJMZFG-UHFFFAOYSA-N
ChEBI: CHEBI:61308
PubChem CID: 73948

Reaxys Registry Number: 1747069
BRN: 1747069
Merck Index (14): 1804
MDL Number: MFCD00007591
Beilstein: 1747069
UN Number: 3077
NACRES: NA.22
Percent Purity: ≥98.0% (T)
Physical Form: Crystalline powder

Appearance: White powder
Color: White
Odor: Odourless
Physical State (20 °C): Solid / Crystalline
Density: 1.02 g/cm³ at 20 °C
Relative Density: No data available
Melting Point / Range: 150–153 °C (lit.)
Melting Point (alternative source): 155 °C
Boiling Point (rough estimate): 167.26 °C

Initial Boiling Point and Boiling Range: No data available
Vapor Pressure: 16 hPa at 20 °C / 0 Pa at 25 °C
Relative Vapour Density: No data available
Refractive Index: 1.4164 (estimate)
pH: 6.7–8.3
pKa: 11.81 ± 0.20 (Predicted)
Viscosity, Kinematic: No data available
Viscosity, Dynamic: No data available

Water Solubility: Soluble in water
Solubility: Slightly soluble in DMSO, slightly soluble in water
Partition Coefficient (n-octanol/water): No data available
Flammability (solid, gas): No data available
Upper/Lower Flammability or Explosive Limits: No data available
Flash Point: No data available
Autoignition Temperature: No data available
Decomposition Temperature: No data available

Explosive Properties: No data available
Oxidizing Properties: No data available
Particle Characteristics: No data available
Other Safety Information: No data available
Storage Condition: Keep in dark place, inert atmosphere, 2–8 °C, refrigerated (0–10 °C)
Store Under Inert Gas: Yes
Conditions to Avoid: Air sensitive, heat sensitive
Stability: Stable, but may explode if heated. Incompatible with strong acids and strong oxidizing agents.
Chemical Classification: Organic hydrazide derivative

FIRST AID MEASURES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Description of first-aid measures:
*General advice:
Consult a physician.
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
If breathed in, move person into fresh air.
Consult a physician.
*In case of skin contact:
Wash off with soap and plenty of water.
Consult a physician.
*In case of eye contact:
Flush eyes with water as a precaution.
*If swallowed:
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Personal precautions, protective equipment and emergency procedures:
Use personal protective equipment.
Ensure adequate ventilation.
-Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
-Methods and materials for containment and cleaning up:
Sweep up and shovel.
Keep in suitable, closed containers for disposal.

FIRE FIGHTING MEASURES of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Extinguishing media:
*Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Further information:
No data available

EXPOSURE CONTROLS/PERSONAL PROTECTION of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Face shield and safety glasses.
Use equipment for eye protection.
*Skin protection:
Handle with gloves.
Wash and dry hands.
-Control of environmental exposure:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.

HANDLING and STORAGE of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Precautions for safe handling:
*Hygiene measures:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Keep container tightly closed in a dry and well-ventilated place.
Store in cool place.

STABILITY and REACTIVITY of CARBOHYDRAZIDE (1,3-DIAMINOUREA):
-Reactivity:
No data available
-Chemical stability:
Stable under recommended storage conditions.
-Possibility of hazardous reactions:
No data available
-Conditions to avoid:
No data available