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1,3- DIAMINOUREA


EC / List no.: 207-837-2
CAS no.: 497-18-7
Mol. formula: CH6N4O


1,3-Diaminourea is the chemical compound with the formula OC(N2H3)2. 
1,3-Diaminourea is a white, water-soluble solid.
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.

Production
Industrially the compound is produced by treatment of urea with hydrazine:

OC(NH2)2 + 2 N2H4 → OC(N2H3)2 + 2 NH3
1,3-Diaminourea can also be prepared by reactions of other C1-precursors with hydrazine, such as carbonate esters.
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
The 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.

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

Photography: 
carbohyrazide is used in the silver halide diffusion process as one of the toners. 
1,3-Diaminourea is used to stabilize color developers that produce images of the azo-methine and azine classes.
1,3-Diaminourea has been used to develop ammunition propellants, stabilize soaps, and is used as a reagent in organic synthesis.

Uses and Manufacturing
Industry Uses    
- Corrosion inhibitors and anti-scaling agents
- Intermediates
- Oxidizing/reducing agents
- Surface active agents
- water treatment

Consumer Uses
- Fuels and related products
- Water treatment products
- oxidizer


General Manufacturing Information
Industry Processing Sectors
- All other basic organic chemical manufacturing
- All other chemical product and preparation manufacturing
- Oil and gas drilling, extraction, and support activities
- Utilities
- water treatment


Oxygen scavenger of the boiler water    
When acting as the oxygen scavenger of boiler water, 1,3-Diaminourea may be directly added into the water while its aqueous solution can also be used.
The usage amount of 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 1,3-Diaminourea is after the thermal scavenging of oxygen. 
The reaction of oxygen and 1,3-Diaminourea is as follows: CON4H6 + 2O2 = 2N2 + 3H2O + CO2


Uses:
1,3-Diaminourea is widely used in the production of pharmaceuticals, herbicides, plant growth regulators, dyes, etc.
(1) 1,3-Diaminourea is a derivative of hydrazine with a strong reduction. 
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. 
(2) 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 
(3) 1,3-Diaminourea can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry 
(4) 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.
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.
1,3-Diaminourea is a derivative of hydrazine with a strong reduction. 
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. 
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. 1,3-Diaminourea has low toxicity, high melting point and a deoxidation efficiency being far greater than the materials currently used. 
1,3-Diaminourea is an ideal product for both safety and environmental protection. In addition, it can be used as the cross-linking agent of the elastic fiber in the field of chemical fiber industry. 
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.
Organic intermediate and photographic chemical.
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1,3-Diaminourea is widely utilized as a curing agent for epoxide-type resins and as an oxygen scrubber in boiler systems. 
1,3-Diaminourea is applied in photography to stabilize color developers that produce images of the azo-methine and azine classes. 
1,3-Diaminourea is used to develop ammunition propellants and stabilize soaps. 
1,3-Diaminourea is also a useful reagent in organic synthesis.
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. 
1,3-Diaminourea can react with dissolved oxygen in water to produce carbon dioxide, nitrogen, and water. When used, powdered 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 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.
1,3-Diaminourea has strong reducibility. 
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, it goodelastic fiber crosslinking agent .
As chemical raw materials and chemical intermediates,it widely used in medicine, herbicide and plant growth regulator, dye, etc.c.


Nature
white crystalline powder obtained by crystallization from aqueous ethanol. 
1,3-Diaminourea had a melting point of 153 °c and began to decompose upon dissolution. 
Very soluble in water, 1% aqueous solution of pH 7.4. 
Almost insoluble in alcohol, ether, chloroform and benzene. 
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 1,3-Diaminourea is converted to the compound carbonyl azide which is highly explosive. 
The aqueous solution of 1,3-Diaminourea gradually decomposes when it is heated with an acid or a base.


Application
1,3-Diaminourea can be used:
As an oxygen scavenger.
In the synthesis of polydentate Schiff base ligands with various aldehydes and ligands by condensation.
In the synthesis of trifluoromethyl-containing (E)-N′-arylidene-1H-pyrazole-1-1,3-Diaminoureas by cyclocondensation reaction which shows antioxidant and antimicrobial properties.

Applications:
1. Intermediate
2. Dyestuff Intermediates
3. Deoxidizer of water treatment
4. Antioxidant in coating industry

Advantages:
1. High quality and competitive price
2. Advanced equipments for testing and manufacturing 
3. Customized service according to your inquiry
4. Short lead time 
5. Good after-sale service


1,3-Diaminourea is widely utilized as a curing agent for epoxide-type resins and as an oxygen scrubber in boiler systems. 
1,3-Diaminourea is applied in photography to stabilize color developers that produce images of the azo-methine and azine classes. 
1,3-Diaminourea is used to develop ammunition propellants and stabilize soaps. 
1,3-Diaminourea is also a useful reagent in organic synthesis.

1,3-Diaminourea is used as an oxygen scavenger in water treatment for boilers. 
1,3-Diaminourea is an alternative to the hazardous and potentially carcinogenic hydrazine. 
1,3-Diaminourea reacts with oxygen to make water and nitrogen and urea. 
1,3-Diaminourea also passivates metals and reduces metal oxides. 
1,3-Diaminourea is widely used in the production of drugs, herbicides,rubber, plant growth regulators, and dyestuffs.

1,3-Diaminourea, also called Carbodihydrazide, is a high performance oxygen scavenger which can be used in all types of boilers. 1,3-Diaminourea is a white, water-soluble solid that decomposes upon melting point around 153°C.

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. 
The product is based on volatile chemistry and so leaves no dissolved solids and minimal ammonia to the boiler system. 
1,3-Diaminourea does provide outstanding protection from oxygen corrosion together with excellent feed water and boiler system passivation.
1,3-Diaminourea reacts directly with oxygen. 
1,3-Diaminourea helps prevent oxygen damage and continues to passivate metal surfaces during wet lay-up. 
1,3-Diaminourea can also be used as a curing agent for epoxide-type resins.


About 1,3-Diaminourea
Helpful information
1,3-Diaminourea is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 to < 1 000 tonnes per annum.

1,3-Diaminourea is used in formulation or re-packing and at industrial sites.

Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which 1,3-Diaminourea is most likely to be released to the environment.

Article service life
ECHA has no public registered data on the routes by which 1,3-Diaminourea is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the types of manufacture using 1,3-Diaminourea. ECHA has no public registered data on the routes by which 1,3-Diaminourea is most likely to be released to the environment.

Formulation or re-packing
1,3-Diaminourea is used in the following products: water treatment chemicals.
Release to the environment of 1,3-Diaminourea can occur from industrial use: formulation of mixtures.
Uses at industrial sites
1,3-Diaminourea is used in the following products: water treatment chemicals and polymers.
1,3-Diaminourea 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.
1,3-Diaminourea is used for the manufacture of: chemicals.
Release to the environment of 1,3-Diaminourea can occur from industrial use: as processing aid, in processing aids at industrial sites, for thermoplastic manufacture and in the production of articles.

Manufacture
ECHA has no public registered data on the routes by which 1,3-Diaminourea is most likely to be released to the environment.

IUPAC NAMES:
1,3 diaminourea
1,3-Diaminourea
1,3-diaminourea
1,3-Diaminourea
1,3-Diaminourea
CarboHydrazide
Carbohydrazide
Carbonohydrazide
carbonohydrazide
Carboydrazide

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
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
WLN: ZMVMZ
EC 207-837-
4-03-00-00240 (Beilstein Handbook Reference)
1,3-Diaminomocovina
1,3-diamino-ure
4-amino-semicarbazid
Cabazide
1,3-DIAMINOUREA
Carbohydrazide58%
CHZ Oxygen Scavenger
4-Aminoisosemicarbazide
Carbonyldihydrazide
Isocarbonohydrazide
CARBOHYDRZIDE
Carbohydrazide,97%
Carbohydrazide 98%
Carbohydrazide(1,3-DiaMinourea)
Carbohydrazide, 98+%
carbonyl dihydrazine
Carbohydrazide 1,3-Diaminourea Carbonic dihydrazide
Carbazic acid, hydrazide
carbazicacid,hydrazide
Carbodihydrazide
Carbonic acid, dihydrazide
carbonicacid,dihydrazide
Carbonohydrazide
carbonyldi-hydrazin
Hydrazine, carbonylbis-
Hydrazine, carbonyldi-
Hydrazinecarboxamide, N-amino-
Hydrazinecarboxylic acid, hydrazide
Karbazid
Semicarbazide, 4-amino-
Urea, 1,3-diamino-
Urea, N,N'-diamino-
CARBAZIDE
CARBOHYDRAZIDE
CARBONIC ACID HYDRAZINE
CARBONIC DIHYDRAZIDE
LABOTEST-BB LT00233149
Carbohydrazide >
Carbohydrazide fandachem
Carbohydrazider
carbohydrazide cas 497-18-7
High quality Carbohydrazide powder CAS 497-18-7

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