Anti-aging agent MB

　　Chemical name: 2-mercaptobenzimidazole

　　CAS# 583-39-1

　　Molecular formula: C 7 H 6 N 2 S

　　Molecular weight: 150.2

　　Premium grade first grade qualified

　　Appearance (visual inspection): light yellow or off-white powder

　　Initial melting point ℃, ≥ 295.0 290.0 285.0

　　Heating loss %, ≤ 0.30 0.50 0.50

　　Ash content%, ≤ 0.30 0.50 0.50

　　Sieve residue (150μm), %, ≤ 0.10 0.10 —

　　Properties: light yellow or white powdery crystal with bitter taste. Relative density 1.42 ± 0.02g/cm3, soluble in ethanol, acetone and ethyl acetate, insoluble in petroleum ether, methylene chloride, insoluble in carbon tetrachloride, benzene and water, non-toxic

　　Uses: Rubber anti-aging agent MB can effectively protect copper damage and overcome the adverse effects caused by over-sulfur. It has a retarding effect on accelerators M, DM, TMTD, etc. It has a synergistic effect with amines and phenolic antioxidants. This product does not change color. It is often used in wires, cables, transparent light-colored products, and also used in polyethylene and polypropylene. Heat stabilizer.

　　Packing: composite paper bag lined with plastic film bag, net weight 25 kg.