I. What is dicyandiamide?

Dicyandiamine, a white crystalline powder, has the chemical name dicyandiamine and the molecular formula [missing information].C2H4N4It has a molecular weight of 84.08 and can participate in a variety of chemical reactions.

II. Product Specifications for Dicyandiamide

• Appearance: White crystalline powder
  

• Purity ≥ 99.5%

• Moisture ≤0.35%

• Ash content ≤0.05%

• Melting point 209-212℃

III. Uses of Dicyandiamide

1. Water treatment field

In water treatment, dicyandiamide primarily removes certain pollutants by reacting chemically with them. For example, in industrial wastewater treatment, dicyandiamide can form stable complexes with wastewater containing heavy metal ions such as copper and nickel, thereby...Removal of heavy metal ions from wastewaterAt the same time, dicyandiamide also has a certain flocculation effect.In domestic sewage treatment, it can be used in combination with other flocculants.It can cause suspended particles in water to coagulate and settle, improving the treatment effect of sewage and achieving the purpose of purifying water quality.

2. Other uses

agricultural sectorDicyandiamide can be used as a nitrogen fertilizer enhancer to inhibit the activity of urease in the soil, slow down the hydrolysis rate of urea, improve the utilization rate of nitrogen fertilizer, and reduce nitrogen loss.

Chemical IndustryIt is an important raw material for synthesizing various chemical products, such as guanidine salts and melamine. In the rubber industry, dicyandiamide can also be used as a vulcanization accelerator to improve the vulcanization speed and performance of rubber.

pharmaceutical fieldDicyandiamide also has certain applications in pharmaceutical synthesis, and can be used to prepare certain drug intermediates.

IV. Instructions for using dicyandiamide

1. Usage and dosage in water treatment

Depending on the type of water and the treatment target, dicyandiamide can be added directly or dissolved before addition. For small-volume water treatment, dicyandiamide can be added directly to the water and then stirred. For large-volume water treatment, dicyandiamide is usually dissolved in water to prepare a solution of a certain concentration, and then uniformly added to the treatment system using metering pumps or other equipment.

Dosage range and determination basisIn industrial wastewater treatment, the dosage of dicyandiamide is generally determined based on the concentration and properties of the pollutants in the wastewater. For wastewater with high heavy metal content, the dosage may range from a few grams to tens of grams per cubic meter. In domestic sewage treatment, the dosage is relatively low, generally 0.5-2 grams per cubic meter. The determination of the dosage is mainly based on experiments and practical operating experience to achieve the best treatment effect and economic benefits.

2. Usage methods in other application scenarios

agricultural sectorWhen used as a nitrogen fertilizer enhancer, dicyandiamide is usually mixed with urea in a certain proportion before being applied to the soil. The proportion is generally 1% to 3% of the urea weight. Care should be taken to apply it evenly to avoid excessively high local concentrations.

Chemical IndustryIn the synthesis of chemical products, the amount of dicyandiamide used and the reaction conditions need to be determined based on the specific reaction process. Generally, the reaction needs to be carried out under specific temperature, pressure, and catalyst conditions. Strict adherence to safety procedures is essential during operation to prevent hazards.

pharmaceutical fieldIn pharmaceutical synthesis, the use of dicyandiamide requires precise control of its dosage and reaction conditions to ensure the quality and purity of the synthesized product. Simultaneously, careful attention must be paid to solvent selection and post-processing steps to avoid introducing impurities.

V. Shelf life and storage of dicyandiamide

Shelf life 2 yearsStore in a cool, well-ventilated, and dry warehouse. Keep away from fire and heat sources, and avoid direct sunlight.