BGC > Produktsuche > 1,2-Dibromo-2,4-dicyanobutane

Molecular Formula: C6H6Br2N2
Molecular Weight: 265,93

Melting point: 48-50 ° C
Storage conditions: 2-8 ° C,Sealed, moisture-proof.
Merck :14, 3021
BRN :1930600

Chemical properties: pure white crystals, m.p.52.5 ~ 54.5 ℃. The original drug (95%) as a white or light yellow crystalline solid, m.p. 48 ~ 50 ℃. Soluble in alcohol, benzene and other organic solvents, insoluble in water. The light, heat, water and other media stability.

Usage:

1. Widely used as textiles, cosmetics, film, coatings, crops and other fields of fungicides, circulating water treatment of sterilization algae, oil drilling water injection agent.
2. For film, leather, paint, needle textiles, cosmetics, etc. for mildew preservatives, but also for oil drilling water, industrial circulating water fungicide
3. Is a highly efficient, broad-spectrum fungicide, bacteria, fungi, algae have broad-spectrum activity, can be used for industrial water treatment, agricultural sterilization and sanitation and disinfection
4. Is a broad-spectrum, high efficiency, low toxicity fungicides, can inhibit and eradicate fungi, bacteria, algae growth, crop disease has a better control effect, anthrax has special effects. Widely used in fruit trees, grapes, vegetables, cotton, peanuts, watermelon, tobacco, tea, flowers and other crops, control anthrax, scab, scab, powdery mildew, rust, damping-off, damping-off, rhizome Rot disease, ulcer disease, bacterial wilt, angular leaf spot and other fungal, bacterial disease. Application of flexible, foliar spray, seed treatment and soil irrigation, have shown a better control effect. Also apply to the lake environment to deal with algae, improve the water quality of fish ponds; textiles, leather and other anti-corrosion, anti-virus.

Brief manufacture process:
Preparation of acrylonitrile from 2-methylene glutaronitrile, and then bromine addition bromo-nitrile system. Acrylonitrile was dimerized in the presence of a catalyst at 25 to 30 ° C to give 2-methylene glutaronitrile, 213 g of 97% 2-methylene glutaronitrile was introduced, and 228 g of bromine was introduced at 100 ° C The light yellow reaction solution is the reaction end point. Adding the dispersant in the reaction liquid, adding a certain amount of solvent, stirring while stirring to separate the granular crystal, stratifying, removing the solvent layer, filtering and drying to obtain the solid bromine nitrile.