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Carbohydrazine = Carbohydrazide
CAS Number: 497-18-7
Beilstein/REAXYS Number: 1747069
EC Number: 207-837-2
MDL number: MFCD00007591
EINECS Number: 207-837-2
InChI: 1S/CH6N4O/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)
InChI key: XEVRDFDBXJMZFG-UHFFFAOYSA-N
NACRES: NA.22
Properties:
Chemical formula: CH6N4O
Molecular Weight: 90.08
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)
Quality Level: 200
Assay: 98%
SMILES string: NNC(=O)NN
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 Ų
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
Description:
Carbohydrazine is the chemical compound with the formula OC(N2H3)2.
Carbohydrazine is a white, water-soluble solid.
Carbohydrazine decomposes upon melting.
Carbohydrazine is a derivative of hydrazine.
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.
Carbohydrazine is a derivative of hydrazine, has strong reducibility, can be used as an intermediate in the manufacture of energetic materials.
Carbohydrazine can also be directly used as a component of rocket explosives and propellants.
Carbohydrazine is used as the oxygen scavenger for boiler water.
Carbohydrazine is the most advanced material used in boiler water deoxidation in the world.
Carbohydrazine has low toxicity, high melting point and deoxidation efficiency far greater than the materials currently used.
Carbohydrazine is an ideal product for safety and environmental protection.
Carbohydrazine is used as an oxygen scavenger in water treatment for boilers.
Carbohydrazine is an alternative to the hazardous and potentially carcinogenic hydrazine.
Carbohydrazine reacts with oxygen to make water and nitrogen and urea.
Carbohydrazine also passivates metals and reduces metal oxides.
Carbohydrazine is widely used in the production of drugs, herbicides,rubber, plant growth regulators, and dyestuffs.
Carbohydrazine is a white crystalline solid with a melting point of 153-154 °C.
Carbohydrazine decomposes upon melting.
Carbohydrazine is very water soluble and largely insoluble in organic solvents.
Carbohydrazine is white crystal powder.
Carbohydrazine is very soluble in water and soluble in alcohol.
Carbohydrazine 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.
Carbohydrazine has dibasic and very reactive properties.
Carbohydrazine is used as a component in jet fuels because it produce a large amount of heat when burned.
Carbohydrazine is used as rocket fuel.
Carbohydrazine is used as an oxygen scavenger for water boiler feed and heating systems to prevent corrosion damage.
Carbohydrazine is used as a reducing agent for the recovery of precious metals.
Carbohydrazine is used as a polymerization catalyst and a chain extender in urethane coatings.
Carbohydrazine is used as an auxiliary in photographic industry to prevent discolouration.
Carbohydrazine is used as an intermediate for pharmaceuticals, stabilizers and water treatment chemicals.
Carbohydrazine and the derivatives of carbohydrazine are versatile intermediates.
When carbohydrazine is used as de-oxidant in boiler, put carbohydrazine into water, the dosage of 0.5mol or above of carbohydrazide for 1 mol O2 is preferred and, the suitable temperature range is 87.8-176.7°C.
The reaction for carbohydrazide with O2 is : CON4H6+ 2O2= 2N2 + 3H2O + CO2
Carbohydrazide is a white crystalline thin and short columnar crystal or white powder at room temperature.
Carbohydrazine is insoluble in alcohol, easily soluble in water with dissolution absorbing heat.
Carbohydrazine is insoluble in alcohol, ether, and benzene.
Owing to that, carbohydrazine is a kind of derivative of hydrazine and thus having strong reduction ability.
Carbohydrazine is non-toxic, and can replace hydrazine and oximes.
Carbohydrazine has a broad range of application in industry.
Carbohydrazine 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.
Carbohydrazine has a low toxicity and high melting point with its deoxidizing efficiency being far greater than the current materials used and is an idea product for both safety and environmental protection.
Carbohydrazine 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.
Carbohydrazine 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 carbohydrazine to the phenol fungicides containing can play a role on preventing discoloration and rancidity.
As a chemical raw material and chemical industry intermediates, carbohydrazine is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.
Carbohydrazine is a derivative of hydrazine, has strong reducibility, can be used as an intermediate in the manufacture of energetic materials,
Carbohydrazine can also be directly used as a component of rocket explosives and propellants. It is used as the oxygen scavenger for boiler water.
Carbohydrazine is the most advanced material used in boiler water deoxidation in the world.
Carbohydrazine has low toxicity, high melting point and deoxidation efficiency far greater than the materials currently used.
Carbohydrazine provides protection from oxygen corrosion together with excellent feed water and boiler system passivation.
Carbohydrazine is organic in nature, used for scavenging oxygen and passivating metal surfaces.
A direct replacement to hydrazine in any boiler without the associated safety hazards and handling precautions.
Carbohydrazine is based on volatile chemistry and so contributes no dissolved solids and minimal ammonia to the boiler system.
Carbohydrazine can be used in boilers of any pressure up to 220 bar, and can be fed into feed waters.
High performance carbohydrazide based organic oxygen scavengers with outstanding protection from oxygen corrosion, plus feed water and boiler system passivation.
Carbohydrazine cannot be used to treat boilers where steam produced will contact food or food products.
Carbohydrazine is an ideal product for safety and environmental protection.
Carbohydrazine is a high performance oxygen scavenger which can be used in all types of boilers.
Carbohydrazine is a white, water-soluble solid that decomposes upon melting point around 153°C.
Carbohydrazine decomposes upon melting and is highly water soluble.
Carbohydrazine molecule is a nonpolar molecule, and all the nitrogen centres in this molecule are at least somewhat pyramidal, which indicates a weaker C-N pi bonding.
Reference Quality Standards
Appearance: fine white crystals or white short columnar crystals
Purity% ≥98.0%
Free hydrazine ≤250.0mg/L
Loss of weight by drying ≤0.2%
PH (12% aqueous solution) 8.45 ± 1.25
Structure of Carbohydrazine:
Carbohydrazine molecule 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.
Attributes of Carbohydrazine:
-Provides instant oxygen removal.
-Eliminates the risk of corrosion by oxygen.
-Prevent corrosion by forming a passive coating on the metal.
-Provides 15% faster reaction than hydrazine.
-A volatile, organic scavenger
-Has many of the same properties as Hydrazine (an inorganic oxygen scavenger often used in high-pressure systems)
-Release of more dangerous hydrazine vapors is greatly diminished
-Not currently subject to restrictions (i.e. OSHA) and not classified as a carcinogen
-Slower reaction time versus hydrazine
Examples of Application Area of Carbohydrazine:
-Beverage and brewery
-Dairy and ice cream
-Fishery and meat processing
-Edible oil
-Poultry and hatchery
-Housekeeping & laundry
-Paper and pulp
-Textile
Applications and Uses of Carbohydrazine:
Carbohydrazine can be used as oxygen scrubber as direct replacement for hydrazine in any boiler without the associated safety hazards and handling precautions.
Carbohydrazine is based on volatile chemistry and so leaves no dissolved solids and minimal ammonia to the boiler system.
Carbohydrazine does provide outstanding protection from oxygen corrosion together with excellent feed water and boiler system passivation.
Carbohydrazine reacts directly with oxygen.
Carbohydrazine helps prevent oxygen damage and continues to passivate metal surfaces during wet lay-up.
Carbohydrazine can also be used as a curing agent for epoxide-type resins.
Carbohydrazine can be used as an oxygen scavenger for boiler water in the field of water treatment.
Carbohydrazine is the most advanced material used in boiler water deoxidation in the world.
Carbohydrazine has low toxicity, high melting point and deoxidation efficiency far greater than the materials currently used.
Carbohydrazine is an ideal safety and environmental protection product.
As a boiler oxygen scavenger, the carbohydrazine can be placed in water, or an aqueous solution thereof can also be used.
The amount of carbohydrazine in 1 mol of O 2 is 0.5 mol, and an appropriate excess is used. The applicable temperature range is 87.8-176.7 °C.
The timing of using carbohydrazi after thermanel deaeration.
The reaction of carbohydrazide with oxygen is as follows: CON4H6 2O2 = 2N2 3H2O CO2
Carbohydrazine can also be used as a component of rocket propellants and, the hydrogen atom attached to the nitrogen atom is easily substituted by other groups
In the textile industry, carbohydrazine can also be used as a crosslinking agent for elastic fibers, a scavenger for formaldehyde, and an antioxidant for pigments such as carotene.
The addition of an appropriate amount of carbohydrazine to the phenolic bactericide-containing soap can prevent discoloration and rancidity.
As a chemical raw material and chemical intermediate, it is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.
Carbohydrazine can be used as color developing and soap quality stabilizers, rubber antioxidants, metal passivators, etc.
Carbohydrazine can be used as an oxygen scavenger.
Carbohydrazine can be used in the synthesis of polydentate Schiff base ligands with various aldehydes and ligands by condensation.
Carbohydrazine can be used in the synthesis of trifluoromethyl-containing (E)-N′-arylidene-1H-pyrazole-1-carbohydrazides by cyclocondensation reaction which shows antioxidant and antimicrobial properties.
Carbohydrazine can be used as an oxygen scavenger for boiler water in the field of water treatment.
Carbohydrazine is the most advanced material used in boiler water deoxidation in the world.
Carbohydrazine is an ideal safety and environmental protection product.
As a boiler oxygen scavenger, carbohydrazine can be placed in water, or an aqueous solution thereof can also be used.
The amount of carbohydrazine in 1 mol of O 2 is 0.5 mol, and an appropriate excess is used.
The applicable temperature range is 87.8-176.7 °C.
The reaction of carbohydrazine with oxygen is as follows: CON4H6 2O2 = 2N2 3H2O CO2
Carbohydrazine can also be used as a component of rocket propellants.
Also, the hydrogen atom of carbohydrazine attached to the nitrogen atom is easily substituted by other groups.
In the textile industry, carbohydrazine can also be used as a cross-linking agent for elastic fibers, a scavenger for formaldehyde, and an antioxidant for pigments such as carotene.
The addition of an appropriate amount of carbohydrazine to the phenolic bactericide-containing soap can prevent discoloration and rancidity.
As a chemical raw material and chemical intermediate, carbohydrazine is widely used in medicine, herbicides, plant growth regulators, dyes and other industries.
Carbohydrazine is used as color developing and soap quality stabilizers, rubber antioxidants, metal passivators.
Carbohydrazine has strong reductive properties and can be used as an intermediate in the manufacture of energetic materials.
Carbohydrazine can also be used directly as a component of rockets and propellants.
Carbohydrazine is used as deoxidizer of boiler water.
Carbohydrazine is widely used in medicine, herbicide, plant growth regulator, dyes and other industries.
Derivatives of carbohydrazine have active applications in organic synthesis for agrochemicals, pharmaceuticals, photographic, heat stabilizers, polymerization catalysts,
Derivatives of carbohydrazine have also active applications in flame-retardants, blowing agents for plastics, explosives, and dyes.
Carbohydrazine is a derivative of hydrazine with high reducing properties.
In addition to being used as an intermediate for the production of energy carriers, carbohydrazine can be used directly in the production of explosives and fuels.
The use of carbohydrazine is as a protective and deoxygenating agent in refinery equipment.
Because hydrogen atoms attached to nitrogen atoms are easily replaced by other groups, they can be used as binders for elastic fibers in textiles, formaldehyde, and carotene pigment antioxidants.
Carbohydrazine is used as a reducing agent in the recycling of precious metals.
Carbohydrazine is widely used in the production of pharmaceuticals, herbicides, plant growth regulators, dyes, etc.
Carbohydrazine is a derivative of hydrazine with a strong reduction.
Carbohydrazine 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.
Carbohydrazine can be used as the preservative of refinery equipment and can also be used as the oxygen scavenger of boiler water treatment agent.
Carbohydrazine can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry.
Carbohydrazine 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.
Carbohydrazine 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.
Carbohydrazine is a derivative of hydrazine with a strong reduction.
Carbohydrazine can be used as the intermediate of producing energy-containing materials and also be used directly for the components of explosives and rocket propellant.
Carbohydrazine 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.
Carbohydrazine has a deoxidation efficiency being far greater than the materials currently used.
Carbohydrazine is an ideal product for both safety and environmental protection.
In addition, carbohydrazine can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry.
Carbohydrazine is widely utilized as a curing agent for epoxide-type resins and as an oxygen scrubber in boiler systems.
Carbohydrazine is applied in photography to stabilize color developers that produce images of the azo-methine and azine classes.
Carbohydrazine is used to develop ammunition propellants and stabilize soaps.
Carbohydrazine is also a useful reagent in organic synthesis.
Industrial Uses of Carbohydrazine
Carbohydrazine is used as corrosion inhibitor and anti-scaling agent.
Carbohydrazine is used as intermediate.
Carbohydrazine is used as oxidizing/reducing agent.
Carbohydrazine is used as surface active agent.
Carbohydrazine is used as water treatment.
Carbohydrazine is used in the following products: water treatment chemicals and polymers.
Carbohydrazine is used in the following areas: municipal supply (e.g. electricity, steam, gas, water) and sewage treatment, mining and formulation of mixtures and/or re-packaging.
Carbohydrazine is used for the manufacture of: chemicals.
Release to the environment of carbohydrazine can occur from industrial use: as processing aid, in processing aids at industrial sites, for thermoplastic manufacture and in the production of articles.
Oxygen scrubber: Carbohydrazine is used to remove oxygen in boiler systems and oxygen scrubbers prevent corrosion.
Precursor to polymers: Carbohydrazine can be used as a curing agent for epoxide-type resins.
Photography: Carbohyrazine is used in the silver halide diffusion process as one of the toners.
Carbohydrazine is used to stabilize color developers that produce images of the azo-methine and azine classes.
Carbohydrazine has been used to develop ammunition propellants, stabilize soaps, and is used as a reagent in organic synthesis.
Benefits of Carbohydrazine:
Carbohydrazine prevents corrosion by forming a protective passive film on metal and boosting pH in condensate line, thereby increasing the shelf-life of boilers.
Although carbohydrazine may be added to the boiler system at any point, carbohydrazine is most efficient to treat the boiler feed water.
Dehydration of Boilers:
Carbohydrazine prevents corrosion in boiler systems by trapping oxygen and reacting with it.
Carbohydrazine is a suitable alternative to hydrazine and sodium sulfite in boiler systems.
Because carbohydrazine reacts directly with the oxygen in the boiler according to the following reaction and prevents the activity of oxygen and the corrosions caused by it.
H6N4CO + 2O2 → CO2 + 2N2 + 3H2O
The products of this reaction, which are nitrogen, water, and carbon dioxide, are safe for process equipment as well as the environment.
These chemicals do not add any minerals to the system.
To maximize the effectiveness of corrosion inhibitors, the present time of carbohydrazine should be increased.
It should be noted that in cases where water vapor is in contact with food, carbohydrazine can not be used.
Carbohydrazine - Boiler Water Treatment:
Carbohydrazine based oxygen scavenger contains corrosion owing to dissolved oxygen, without adding any inorganic solids to the boiler water.
This particular class of oxygen scavenger does not decompose into organic acid species.
This particular class of oxygen scavenger works by promoting the formation of passivating metal oxide films without interfering with the action of other treatment chemicals.
Carbohydrazine based oxygen scavenger minimizes oxygen induced corrosion and pitting, iron oxide deposition and scaling of feed-water lines, de-aerators, and internal steam boiler.
This boiler water treatment is mainly available in two variants - powder and liquid.
In solid form, completely soluble in water and, decomposes around 153°C/ 307.4 F.
The liquid variant is based on volatile chemistry which leaves no dissolved solids, and ammonia to the boiler system.
Carbohydrazine prevents corrosion by forming a protective passive film on metal and boosting pH in condensate line, thereby increasing the shelf-life of boilers.
Although carbohydrazine may be added to the boiler system at any point.
Carbohydrazine is most efficient to treat the boiler feed water, preferably as it comes from the de-gasifiers.
Residence times prior to steam formation should be maximized to obtain maximum corrosion protection.
Carbohydrazine is an effective oxygen scavenger and metal passivator over the entire range of temperatures to which the boiler is generally subjected.
Key Features and Benefits of this Boiler Water Treatment:
-Long time protection and control against corrosion
-Non carcinogenic nature
-Easy to dose
-Promotes passivation on metal surfaces
-Non residual
Storage Characteristics of Carbohydrazine
Treasury: ventilation, low-temperature and drying; it should be stored separately from strong acids and strong oxidants.
Storage of Carbohydrazine:
-Store in a cool
-Dry place away from light.
Production of Carbohydrazine
The reaction of urea with hydrazine is used to synthesize this substance on an industrial scale: OC (NH2)2 + 2 N2H4 → OC (N2H3)2 + 2 NH3
The other way of this compound synthesis is through the reaction of carbonate ester and hydrazine: (C2H5O)2CO + 2N2H4.H2O —> NH2NHCONHNH2 + 2C2H5OH + 2H2O
Industrially carbohydrazine is produced by treatment of urea with hydrazine: OC(NH2)2 + 2 N2H4 → OC(N2H3)2 + 2 NH3
Carbohydrazine can also be prepared by reactions of other C1-precursors with hydrazine, such as carbonate esters.
Carbohydrazine can be prepared from phosgene, but this route cogenerates the hydrazinium salt [N2H5]Cl and results in some diformylation.
Synonyms:
Carbohydrazide
497-18-7
Carbonic dihydrazide
1,3-Diaminourea
Carbonohydrazide
Carbazide
Carbodihydrazide
Hydrazine, carbonyldi-
Hydrazine, carbonylbis-
Carbazic acid, hydrazide
Urea, N,N'-diamino-
Semicarbazide, 4-amino-
Carbonic acid, dihydrazide
Cabazide
Karbazid
Hydrazinecarboxamide, N-amino-
Urea, 1,3-diamino-
carbonyl dihydrazine
Hydrazinecarboxylic acid, hydrazide
1,3-Diaminomocovina
Carbonohydrazid
UNII-W8V7FYY4WH
carbonodihydrazide
NSC 1934
N,N'-diaminourea
4-aminosemicarbazide
carbonylbis-hydrazine
hydrazinecarbohydrazide
N-aminohydrazinecarboxamide
W8V7FYY4WH
N-aminohydrazine carboxamide
hydrazide hydrazinecarboxylic acid
MFCD00007591
Carbohydrazide, 97%
Karbazid [Czech]
1,3-Diaminomocovina [Czech]
EINECS 207-837-2
CH6N4O
BRN 1747069
AI3-52397
carbonyldihydrazide
Urea,3-diamino-
Urea,N'-diamino-
Carbohydrazide, 98%
1,3-bis(azanyl)urea
ACMC-1AEZI
WLN: ZMVMZ
EC 207-837-2
4-03-00-00240 (Beilstein Handbook Reference)
DTXSID5038757
CHEBI:61308
NSC1934
O C (N H N H2)2
AMY40845
NSC-1934
ANW-30830
ZINC64634060
AKOS003193931
H247
DB-029568
FT-0606617
A827826
Q5037885
W-106011
4702-23-2
