China Dicyandiamide C2H4N4 CAS：461-58-5 Manufacturer, Factory

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China Dicyandiamide C2H4N4 CAS：461-58-5 Manufacturer, Factory

Dicyandiamide is a nitrile derived from guanidine. It is a dimer of cyanamide, from which it can be prepared. 2-Cyanoguanidine is a colourless solid that is soluble in water, acetone, and alcohol, but not nonpolar organic solvents.

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Product Description

Product Introduction

Dicyandiamide, abbreviated as DICY or DCD, is a dimer of cyanamide and also a cyanide derivative of guanidine. It is a white crystalline powder. It is soluble in water, alcohols, ethylene glycol and dimethylformamide, and is almost insoluble in ethers and benzene. It is non-flammable. It is stable when dried.

Dicyandiamide curing agent belongs to one of the earliest types of latent curing agents that are heated for curing. It is in solid form at room temperature and insoluble in epoxy resin. It is dispersed in epoxy resin in the form of microparticles and then undergoes heating reaction. Once heated to near the melting point, it begins to dissolve and rapidly react for curing.

Features

Physical and chemical properties

The aqueous solution of dicyandiamide will gradually decompose and produce ammonia when heated above 80℃; when the crystals of dicyandiamide are heated to their melting point, they will melt and immediately generate intense heat upon melting, resulting in the formation of tricyandiamine, melamine, etc.
Hazard Risks

When heated, dicyandiamide decomposes and generates toxic gases containing ammonia; it reacts violently with strong oxidants such as ammonium nitrate, posing the risk of fire and explosion; it also reacts with acids to produce toxic gases containing hydrogen cyanide.
Chemical Properties

White prismatic crystalline powder. Slightly soluble in water and ethanol, insoluble in ether and benzene.

Applications

Guanidine Salts & Triazine Diamine Raw Materials

By reacting dicyandiamide with acid, various guanidine salts can be produced. The benzene derivative triazine diamine obtained from the reaction of dicyandiamide and phenyl cyanide is an intermediate for coatings, laminated boards and molding powders.
Dye Fixatives

The dicyandiamide resin obtained by reacting dicyandiamide with formaldehyde can be used as a fixative for dyes.
Fertilizer Formulations

Compound fertilizer of dicyandiamide can control the activity of nitrifying bacteria, regulate the conversion speed of nitrogen fertilizer in the soil, reduce nitrogen loss and improve fertilizer utilization efficiency.
Fine Chemical Intermediates

In medicine, it is used to produce nitroguanidine, sulfonamide drugs, etc.; it is also used to produce thiourea, nitrocellulose stabilizer, rubber vulcanization accelerator, steel surface hardener, artificial leather filler, adhesive, etc. The pharmaceutical intermediate 5-aza-2'-deoxyuridine can be obtained by reacting dicyandiamide with formic acid.
Organic Synthesis & Metal Determination

For the determination of cobalt, nickel, copper and palladium, organic synthesis, nitrocellulose stabilizer, hardener, detergent, sulfurization accelerator, resin synthesis.

Packaging

25KG Bag

Frequently Asked Questions (FAQ)

Q What is Dicyandiamide (DICY/DCD) and what does it look like?

Dicyandiamide (DICY or DCD) is a dimer of cyanamide and a cyanide derivative of guanidine. It presents physically as a white crystalline powder.

Q What is the solubility profile of Dicyandiamide?

It is soluble in water, alcohols, ethylene glycol, and dimethylformamide, but is almost insoluble in ethers and benzene.

Q How does Dicyandiamide function as a curing agent in epoxy resins?

It functions as a latent curing agent. At room temperature, it is solid and insoluble in epoxy resin, remaining dispersed as microparticles. When heated near its melting point, it dissolves and rapidly initiates the curing reaction.

Q Are there any hazardous reactions associated with heating Dicyandiamide?

Yes. When heated, it decomposes to generate toxic gases containing ammonia. It reacts violently with strong oxidants (like ammonium nitrate), presenting fire and explosion risks. It also reacts with acids to produce toxic hydrogen cyanide gas.

Q How does Dicyandiamide function as a fertilizer?

When formulated as a compound fertilizer, Dicyandiamide can control the activity of nitrifying bacteria. This regulates the conversion speed of nitrogen fertilizer in the soil, reduces nitrogen loss, and increases overall fertilizer efficiency.

Q What options are available for the packaging of Dicyandiamide?

Dicyandiamide is regularly packaged and supplied in 25KG bags.