Dicyandiamide

ChemicalBook > CAS DataBase List > Dicyandiamide

Product Name: Dicyandiamide
CAS No.: 461-58-5
Chemical Name: Dicyandiamide
Synonyms: CYANOGUANIDINE;DICYANODIAMIDE;DCD;N-Cyanoguanidine;1-CYANOGUANIDINE;2-Cyanoguanidine;Metformin impurity A;DICY;Dermcidin;Guanidine-1-carbonitrile
CBNumber: CB1779741
Molecular Formula: C2H4N4
Formula Weight: 84.08
MOL File: 461-58-5.mol

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Dicyandiamide Property

Melting point:: 208-211 °C (lit.)
Boiling point:: 144.35°C (rough estimate)
Density: 1.40
vapor pressure: 0.001Pa at 20℃
refractive index: 1.6260 (estimate)
storage temp.: 2-8°C
solubility: H₂O: 0.1 g/mL, clear
pka: 0.73±0.70(Predicted)
form: Crystalline Powder
color: White
Water Solubility: 32 g/L (20 ºC)
Merck: 14,3092
BRN: 605637
Stability:: Stable. Incompatible with strong acids, strong oxidizing agents, strong bases.
InChIKey: QGBSISYHAICWAH-UHFFFAOYSA-N
LogP: -1 at 20℃
CAS DataBase Reference: 461-58-5(CAS DataBase Reference)
NIST Chemistry Reference: Dicyandiamide(461-58-5)
EPA Substance Registry System: Dicyanodiamide (461-58-5)

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Safety

Hazard Codes: Xn,T
Risk Statements: 20/21/22-43-36/38-25
Safety Statements: 22-24/25-45-36-3
RIDADR: UN 2811 6.1 / PGIII
WGK Germany: 1
RTECS: ME9950000
TSCA: Yes
HS Code: 29262000
Hazardous Substances Data: 461-58-5(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: SAB1306514
Product name: ANTI-DCD(C-TERMINAL) antibody produced in rabbit
Purity: purified immunoglobulin, buffered aqueous solution
Packaging: 400μl
Price: $481
Updated: 2024/03/01

Sigma-Aldrich

Product number: D76609
Product name: Dicyandiamide
Purity: 99%
Packaging: 1kg
Price: $88.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.02491
Product name: 1-Cyanoguanidine
Purity: for synthesis
Packaging: 100g
Price: $29.5
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.02491
Product name: 1-Cyanoguanidine
Purity: for synthesis
Packaging: 1kg
Price: $55.5
Updated: 2024/03/01

Sigma-Aldrich

Product number: 1396310
Product name: Metformin Related Compound A
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 30mg
Price: $1380
Updated: 2024/03/01

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Dicyandiamide Chemical Properties,Usage,Production

Chemical Properties

white powder

Uses

Dicyandiamide is used in the synthesis of barbiturates. It is used as a stabilizer of ammonium dinitramide melt. It is used as hardener.

Uses

Dicyandiamide is a guanidine derivative used in the synthesis of barbiturates,it is also used in the plastics industry (manufacture of melamine).

Uses

In the plastics industry (manufacture of melamine). In the pharmaceutical industry (barbiturates, guanidine derivatives).

Production Methods

Dicyanodiamide is manufactured by dimerization of cyanamide in aqueous solution. The 25% cyanamide solution produced is adjusted to pH 8–9 and held at approximately 80C for 2 h to give complete conversion. The hot liquor is filtered and transferred to a vacuum crystallizer, where it is cooled. The crystals or dicyanodiamide are separated in continuous centrifuges and passed to rotary driers. In 1990, the total worldwide production of dicyanodiamide was about 30,000 tons.

Application

Dicyanodiammonia, abbreviated as dicy or DCD. It is an organic substance with the chemical formula of c2h4n4. It is a dimer of cyanamide and a cyano derivative of guanidine. Chemical formula c2h4n4. White crystalline powder. Soluble in water, alcohol, ethylene glycol and dimethylformamide, almost insoluble in ether and benzene. Stable when dry. It is a guanidine in which one of the amino hydrogens of guanidine itself is substituted by a cyano group. It is used in the manufacture of fertilizers, pharmaceuticals, explosives, oil well drilling muds, and dyestuffs. It has a role as a curing agent, a flame retardant, a fertilizer, an explosive and a nitrification inhibitor. It is a member of guanidines and a nitrile. The application of nitrification inhibitors has been used as a strategy to promote N utilization efficacy and reduce N2O emissions in paddy Dicyandiamide (DCD) as a widely used nitrification inhibitor inhibits the activity of ammonium-oxidizing bacteria which results in longer ammonium retention and reduces the production of NO2?in soils. DCD efficacy was found to be related to DCD concentration, temperature, moisture, pH, and organic matter content. Studies have shown that leaching DCD from agricultural soils into aquatic ecosystems can strongly change the community composition of benthic stream bacteria and algae and influence stream nutrient cycling stoichiometry. Literature on the mechanisms and benefits of nitrification inhibitors is extensive but there are very few studies focused on the influence of DCD application on other microbes in paddy system.

Definition

ChEBI: Cyanoguanidine is a guanidine in which one of the amino hydrogens of guanidine itself is substituted by a cyano group. It is used in the manufacture of fertilizers, pharmaceuticals, explosives, oil well drilling muds, and dyestuffs. It has a role as a curing agent, a flame retardant, a fertilizer, an explosive and a nitrification inhibitor. It is a member of guanidines and a nitrile.

General Description

Dicyandiamide is commonly used for the curing of epoxy resins. It is a nitrification inhibitor that is said to be capable of reducing nitrate (NO^3-) leaching and nitrous oxide (N₂O) emissions from grazed pasture soils.

Flammability and Explosibility

Non flammable

Synthesis

The calcium hydrogen cyanide suspension obtained from the hydrolysis of calcium cyanamide is filtered under reduced pressure to remove the calcium hydroxide filter residue, and then carbon dioxide is introduced into the filtrate to precipitate the calcium in the form of calcium carbonate to obtain the cyanamide solution. It is polymerized under alkaline conditions, then filtered, cooled, crystallized, separated and dried to obtain dimer cyanamide. The temperature at the maximum rate of dicyandiamide formation is related to pH: pH is 9.7 at 50 ℃; PH 9.1 at 80 ℃; The pH is 8.8 at 100 ℃. After controlled polymerization under these conditions, the finished dicyandiamide is obtained by cooling, crystallization, separation and drying. The content of dicyandiamide in industrial products is 99%, and 4239kg of lime nitrogen (more than 21% nitrogen) is consumed per ton of products.

Purification Methods

Recrystallise cyanoguanidine from water or EtOH. [Beilstein 3 IV 160.]

Dicyandiamide Preparation Products And Raw materials

Raw materials

Calcium cyanamide CALCIUM CARBONATE Cyanamide Activated carbon Calcium hydroxide

Preparation Products

Finishing agent FS Guanidine sulfamate Benzoguanamine resin tanning agent RS Amidinothiourea Phenformin hydrochloride Sulfometuron-methyl Dye-fixing agent M Dicyanide diamino formaldehyde,condensation compound Dye-fixing agent G Moroxydine Tribenuron methyl 2-Amino-4-methoxy-6-methyl-1,3,5-triazine synthetic tanning agent MR-102 Metformin hydrochloride Melamine Phenformin Chlorsulfuron Irsogladine 4-Methoxy-N,6-dimethyl-1,3,5-triazin-2-amine 1,3,5-Triazine, 2-phenyl- (9CI) Guanidine nitrate METSULFURON METHYL color fixing agent Y

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View Lastest Price from Dicyandiamide manufacturers

Jinan Finer Chemical Co., Ltd

Product: Dicyanodiamide 461-58-5
Price: US $0.00/Kg/Bag
Min. Order: 1KG
Purity: 99.5%
Supply Ability: 2000mt
Release date: 2021-12-09

Hebei Saisier Technology Co., LTD

Product: Dicyanodiamide 461-58-5
Price: US $6.00/KG
Min. Order: 1KG
Purity: More than 99%
Supply Ability: 2000KG/Month
Release date: 2024-04-22

hebei hongtan Biotechnology Co., Ltd

Product: Dicyandiamide 461-58-5
Price: US $30.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 1000kg
Release date: 2024-03-18

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DICYANDIMIDE

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DICYANDIAMIDE 99.5%

DCDA - DICINAMIDE DIAMIDE

DICYNADIAMIDE