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Dicyandiamide

Dicyandiamide
Dicyandiamide structure
CAS No.
461-58-5
Chemical Name:
Dicyandiamide
Synonyms
DCD;CGNA;DICY;AIDD;DSEP;Didin;xb2879b;acr-h3636;Dermcidin;Pyroset DO
CBNumber:
CB1779741
Molecular Formula:
C2H4N4
Formula Weight:
84.08
MOL File:
461-58-5.mol

Dicyandiamide Properties

Melting point:
208-211 °C (lit.)
Boiling point:
144.35°C (rough estimate)
Density 
1.40
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
Indirect Additives used in Food Contact Substances
CYANOGUANIDINE
FDA 21 CFR
175.105; 175.300; 176.170; 177.2470; 177.2600; 178.2010
CAS DataBase Reference
461-58-5(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
M9B1R0C16H
NIST Chemistry Reference
Dicyandiamide(461-58-5)
EPA Substance Registry System
Dicyanodiamide (461-58-5)
SAFETY
  • Risk and Safety Statements
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
Toxicity LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

Dicyandiamide price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.02491 1-Cyanoguanidine for synthesis 461-58-5 100 g $21.74 2021-12-16 Buy
Sigma-Aldrich 8.02491 1-Cyanoguanidine for synthesis 461-58-5 1 kg $37.74 2021-12-16 Buy
Sigma-Aldrich D76609 Dicyandiamide 99% 461-58-5 1kg $51.1 2021-12-16 Buy
Sigma-Aldrich Y0001590 Metformin impurity A European Pharmacopoeia (EP) Reference Standard 461-58-5 $190 2021-12-16 Buy
Sigma-Aldrich M-196 Cyanoguanidine (Metformin Related Compound A) solution 50?μg/mL in methanol, certified reference material, ampule of 1?mL, Cerilliant? 461-58-5 1 mL $220 2021-12-16 Buy

Dicyandiamide Chemical Properties,Uses,Production

Chemical Properties

white powder

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).

Uses

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

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.

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.

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 (NO3-) leaching and nitrous oxide (N2O) emissions from grazed pasture soils.

Chemical 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

Preparation Products


Dicyandiamide Suppliers

Global( 462)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Ningxia Jinhua Chemical Co.,Ltd
025-52279164
025-52279193 info@nxjhchem.com CHINA 66 58
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Hangzhou Bayee Chemical Co., Ltd.
0086-571-86990109
0086-571-85775919 rachelhoo@bayeechem.com China 105 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com China 1807 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-0371-55982848
sales@coreychem.com China 29954 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Jinan Finer Chemical Co., Ltd
+8615508631887 +86-531-88989536
+86-531-88989539 sales@finerchem.com CHINA 1735 58

Related articles


View Lastest Price from Dicyandiamide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2022-01-21 Dicyanodiamide
461-58-5
US $0.00 / Kg/Bag 1KG 99.5% 2000mt Jinan Finer Chemical Co., Ltd
2021-12-01 Dicyandiamide
461-58-5
US $10.70 / Kg/Drum 10g 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-09-07 Dicyandiamide
461-58-5
US $200.00 / KG 100KG 99.5 200tons qingdao trust agri chemical co.,ltd

Dicyandiamide Spectrum


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