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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
D76609
Product name
Dicyandiamide
Purity
99%
Packaging
1kg
Price
$84.8
Updated
2023/01/07
Sigma-Aldrich
Product number
SAB1306514
Product name
ANTI-DCD(C-TERMINAL) antibody produced in rabbit
Purity
purified immunoglobulin, buffered aqueous solution
Packaging
400μl
Price
$461
Updated
2023/01/07
Sigma-Aldrich
Product number
8.02491
Product name
1-Cyanoguanidine
Purity
for synthesis
Packaging
100g
Price
$27.9
Updated
2023/01/07
Sigma-Aldrich
Product number
8.02491
Product name
1-Cyanoguanidine
Purity
for synthesis
Packaging
1kg
Price
$52.5
Updated
2023/01/07
Sigma-Aldrich
Product number
1396310
Product name
Metformin Related Compound A
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
30mg
Price
$1270
Updated
2022/05/15
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Dicyandiamide Chemical Properties,Usage,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.

Flammability and Explosibility

Nonflammable

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.]

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Dicyandiamide Suppliers

Ningxia lanbai black activated carbon co. LTD
Tel
86-951-6916117
Fax
86-951-6916137
Email
1151335606@qq.com
Country
China
ProdList
12
Advantage
58
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-62063333-1 15601730970
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
24968
Advantage
65
Guangzhou Haoyu International Trade Co., Ltd.
Tel
18818407278 18818407278
Fax
020-89850646
Email
278220866@qq.com
Country
China
ProdList
19
Advantage
58
Jinan Century Tongda Chemical Co., Ltd.
Tel
0531-58051019 13370556116
Fax
0531-85917596
Email
3350933950@qq.com
Country
China
ProdList
280
Advantage
58
Guangzhou Helong Trading Co., Ltd.
Tel
020-82296652 13829741870
Email
331033673@qq.com
Country
China
ProdList
18
Advantage
58
Jinan Trands Chemical Co. LTD
Tel
0531-88770911 15154153272
Fax
0531-88770911
Email
1343989492@qq.com
Country
China
ProdList
126
Advantage
58
Ningxia Taikang Pharmaceutical Co., Ltd.
Tel
09526667864 13469609191
Email
nxszltyd@163
Country
China
ProdList
3
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
18621169121
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40242
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30133
Advantage
84
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View Lastest Price from Dicyandiamide manufacturers

Hebei Crovell Biotech Co Ltd
Product
Dicyandiamide 461-58-5
Price
US $10.70/Kg/Drum
Min. Order
10g
Purity
99%
Supply Ability
10000kg
Release date
2021-07-27
Hebei Guanlang Biotechnology Co., Ltd.
Product
Dicyandiamide 461-58-5
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2023-01-29
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

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