TBBS
TBBS
CHEMICAL STRUCTURE: 
CHEMICAL NAME: N-Tertiarybutyl-2-benzothiazole sulfenamide
MOLECULAR FORMULA: C11H14N2S2
MOLECULAR WEIGHT: 238.37
CAS NO.: 95-31-8
PROPERTIES:
It is gray-white powder/granule, density 1.26-1.32
Soluble in benzene, benzene, CS2, methyl alcohol, acetone, chloroform, alcohol.
Insoluble in gasoline, water, acid and alkali with lower concentration.
APPLICATION:
NS is regarded as standard accelerator. Low poison and high efficiency.
Can provide fast cure rate and high modulus development in NR(Natural Rubber), SBR(Styrene Butadiene Rubber), BR(Butadiene Rubber) and blends.
Normally used alone or with small quantities of ultra accelerators in tyre compounds or industrial rubber products.
QUALITY STANDARD:
ITEM | POWDER | OILED POWDER | GRANULE | |
appearance | gray-white powder (granule) | |||
initial melting point | 105.0℃ min | 105.0℃ min | 105.0℃ min | |
loss on drying | 0.30% max | 0.50% max | 0.30% max | |
ash | 0.30% max | 0.30% max | 0.30% max | |
residue on 150μm sieve | 0.10% max | 0.10% max | / | |
residue on 63μm sieve | 0.50% max | 0.50% max | / | |
additive | / | 0.1%-2.0% | / | |
granule diameter | / | / | 1.0-3.0mm | |
PACKING & LOADING:
Packed in Kraft paper bags of 25kgs net each with P.E. liner inside, or jumbo bags.
12Mt per 20’GP, 24Mt per 40’GP, palletized.
SHIPPING MARKS: Neutral export standard. Also can be customized.
STORAGE VALIDITY: 1 year.