PVI
PVI
CHEMICAL STRUCTURE: 
CHEMICAL NAME: N-TCyclohexy(thio)phthalimide
MOLECULAR FORMULA: C14H15O2SN
MOLECULAR WEIGHT: 261.34
CAS NO.: 17796-82-6
PROPERTIES:
White crystal/granule. Density is 1.25-1.35.
Soluble in acetone, benzene, toluol, diethyl ether, ethyl acetate, bot CCI4 and hot alcohol, slightly soluble in gasoline. Insoluble in derosene and water.
APPLICATION:
Pre-vulcanisation inhabitor. Provide predictable scorch control in most sulphur valcanisation. Improved cost performance through marginal stock recovery, single-stage mixing, higher processing and/or curing temperatures, activity is linear and higher than most retarders. May cause bloom above 0.5phr.
It is anti-scorching agent for both natural and synthetic rubber.
QUALITY STANDARD:
ITEM | POWDER | OILED POWDER | GRANULE | |
appearance | White crystal (granule) | |||
initial melting point | 90.0℃ min | 90.0℃ min | 90.0℃ min | |
loss on drying | 0.30% max | 0.50% max | 0.30% max | |
ash | 0.10% max | 0.10% max | 0.10% max | |
residue on 840μm sieve | 0.00% | 0.00% | / | |
additive | / | 0.1%-2.0% | / | |
granule diameter | / | / | 2.50mm | |
PACKING & LOADING:
Packed in Kraft paper bags of 25kgs net each with P.E. liner inside
12Mt per 20’GP, 24Mt per 40’GP, palletized.
SHIPPING MARKS: Neutral export standard. Also can be customized.
STORAGE VALIDITY: 1 year.