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Guanidine carbonate

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Related articles

Guanidine carbonate Basic information
High purity Guanidine carbonate synthesis method Reference quality standards
Product Name:Guanidine carbonate
Synonyms:Carbonic acid, compound with guanidine (1:2);Guanidine·carbonic acid;Guanidne carbonate;Guanidinium carbonate, synthesis grade;Carbonicacid,compd.withguanidine(1:1);Carbonicacid,compd.withguanidine(1:2);Iminoureacarbonate;GUANIDINE CARBONAT
CAS:593-85-1
MF:C2H7N3O3
MW:121.1
EINECS:209-813-7
Product Categories:Building Blocks;Chemical Synthesis;Nitrogen Compounds;Organic Building Blocks;Guanidines;Nitrogen Compounds;Organic Building Blocks;Pharmaceutical Intermediates;593-85-1
Mol File:593-85-1.mol
Guanidine carbonate Structure
Guanidine carbonate Chemical Properties
Melting point >300 °C(lit.)
density 1.25
vapor pressure 0Pa at 25℃
storage temp. Store below +30°C.
solubility 450g/l
form Crystalline Powder
pka12.5[at 20 ℃]
color White to almost white
PH11.7 (110g/l, H2O, 20℃)
Water Solubility 450 g/L (20 ºC)
BRN 3628359
InChIKeyKMSRVXJGTIRNNK-UHFFFAOYSA-N
LogP-1.63 at 20℃
CAS DataBase Reference593-85-1(CAS DataBase Reference)
NIST Chemistry ReferenceGuanidine carbonate(593-85-1)
EPA Substance Registry SystemGuanidine carbonate (2:1) (593-85-1)
Safety Information
Hazard Codes Xn
Risk Statements 22-36/37/38-20/21/22
Safety Statements 26-36-22
WGK Germany 3
RTECS FG1750000
Autoignition Temperature530 °C
TSCA Yes
HS Code 29252000
ToxicityLD50 orally in Rabbit: 1045 mg/kg
MSDS Information
ProviderLanguage
Guanidine carbonate English
SigmaAldrich English
ACROS English
ALFA English
Guanidine carbonate Usage And Synthesis
High purity Guanidine carbonate synthesis methodGuanidine carbonate is an extremely versatile organic chemical products, it is mainly used in flame retardants, flocculants, foaming agents, synthetic sulfa drugs, etc. Guanidine carbonate is also used as synthetic detergent builders, high-quality cosmetics raw materials.Synthesis of guanidine carbonate is reported by many literatures [1-3] .The main domestic guanidine carbonate production is that molt dicyandiamide and ammonium chloride to generate guanidine hydrochloride, generate free guanidine under the action of the alkali, and then by the reaction of free guanidine and carbon dioxide to produce guanidine carbonate. this route is easy to generate melamine and its dimers, trimers and other impurities because of the high-temperature melting , and the presence of Cl-, Na + in the system is difficult to completely removed , even if the purity is> 99% of guanidine carbonate, its ash content is still up 0.2%, it is difficult to obtain high purity guanidine carbonate. in this paper, cyanamide as raw materials, reacts with carbon dioxide and ammonia in one step synthesis of guanidine carbonate, also known as ash-free guanidine carbonate, and then purify , to obtain a high purity guanidine carbonate, the reaction equation is as follows: 2NH2CN + CO2 + 2NH3 + H20 → [NH2C (: NH) NH2] 2H2CO3
Author: Zhouzhao Liang Xie Jianwei Zhou Xiaohong Jiang Yongqing
Author: Zhouzhao Liang, Xie Jianwei (Research Institute of Zhejiang University of West Branch Quzhou 324006)
Zhou Xiaohong, Jiang Yongqing (Institute of Fine Chemicals Group Technology Center Juhua Quzhou 324004)
Reference quality standards[Industry Grade ] Name of Item Technical index
Premium grade B product
Appearance white crystalline white powder
Content of ≥ 99% 98%
Ammonium ≤ 0.45% 1.0%
Water insoluble matter ≤ 0.2% 0.2%
Moisture ≤ 0.2% 0.2%
Ash ≤ 0.15% 0.2%
Water-soluble test Qualified Qualified
PH value (4% 25 ℃) 11.4 11.4
[Pharmaceutical Grade ]
Name of Item Technical index
Premium grade
Appearance white crystals
Content ≥ 99%
Ammonium salt (with NH4Cl meter) ≤ 0.45%
Water insoluble matter ≤ 0.2%
Moisture ≤ 0.2%
Ash ≤ 0.1%
Water-soluble test Qualified
PH value (4% 25 ℃) 11.4
Heavy Metal ppm ≤10
Arsenic ppm ≤3
The above information is edited by the Chemicalbook of Tian Ye.
Chemical Propertieswhite to almost white crystalline powder. Soluble in water, slightly soluble in methanol, almost insoluble in acetone, benzene and ether.
UsesGuanidine Carbonate is used in the cytidine triphosphate injection stabilization. It also acts as a powerful and versatile protein denaturants.
As a strong chemical base, guanidine carbonate is used as an intermediary in a variety of applications:
Organic synthesis materials and analytical reagents.
pH adjusting agents for amino resins, antioxidants, resin stabilizer and guanidine soap, also a grout agent, cement additives, surfactants.
In terms of synthetic detergent,it is used as a moisture agent and a synergist.
For Zinc, cadmium, manganese weight measurement, it is used as a precipitating agent, it is also used in the separation of alkali metal magnesium.
UsesGuanidine Carbonate is a strong organic alkali. It is used to adjust the pH of a formulation, organic intermediate, soap and cosmetic products.
ApplicationGuanidine carbonate salt can be used as a reactant for the synthesis of:
An oxidizer, guanidinium dinitramide (GDN), by reacting with ammonium dinitramide.
Guanidinium cyclopropanecarboxylate by reacting with cyclopropanecarboxylic acid.
PreparationSynthesis of guanidine carbonate: Melt double cyanide salts and ammonia to generate guanidine salts (guanidine hydrochloride, guanidine nitrate) at 170-230 ℃ . Then make guanidine salt into an alcohol solution, add soda to free guanidine, absorb carbon dioxide to obtain guanidine carbonate.
HazardToxic by ingestion.
Flammability and ExplosibilityNon flammable
Purification MethodsCrystallise it from MeOH. [Beilstein 3 H 86, 3 I 41, 3 II 72, 3 III 161, 3 IV 152.]
Tag:Guanidine carbonate(593-85-1) Related Product Information
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