CAS number: 53988-10-6
Trade name: Rubber antioxidant MMB
Molecular formula: C8H8N2S
Molecular weight: 164.23
Structural formula:
chemical properties
The pure product is white powder crystal, non-toxic and has a bitter taste. Storage stable.
Melting point 300-304 °C(lit.)
Density 1.25
CAS Database 53988-10-6(CAS DataBase Reference)
EPA Chemical Substance Information 2H-Benzimidazole- 2-thione, 1,3-dihydro-4(or 5)-methyl- (53988-10-6)
Quality Standard
|
Indicator name |
standard requirement |
|
Appearance (visual inspection) |
off-white powder |
|
Initial melting point °C |
≥270.0 |
|
Heating loss % |
≤0.50 |
|
Ash % |
≤0.50 |
|
Sieve residue (150μm), % |
≤0.1 |
dangerous nature
Dangerous Goods Symbol Xn
Hazard Category Code 20/21/22-36/37/38
Safety Instructions 26-36
Dangerous Goods Transport Number UN 2811 6.1/PG 3
WGK Germany 2
RTECS No. DE1050000
use and storage
This product is an important variety of non-polluting antioxidant, used as natural rubber, styrene-butadiene rubber, butadiene rubber, nitrile rubber and its latex.
How to use: This product is easy to disperse in rubber, but the solubility is not large, it does not change color under sunlight, and it is slightly polluting. When used alone, the dosage is generally 1-1.5 parts. When the dosage exceeds 2 parts, the phenomenon of blooming will occur. The amount used in latex foam rubber is 0.5 parts. Because this product has a bitter taste, it is not suitable for use in food contact rubber products.
Store tightly in a cool, dry, well-ventilated place.
