Item	Specifications
	High grade	1st grade	Qualified
Appearance	White or light yellow Power
Initial Melting Point ,°C Min.	106.0	104.0	103.0
Heat Loss,% Max.	0.30	0.30	0.50
Ash,% Max.	0.30	0.30	0.50
Residue on 150 µm Sieve Max.	0.0	0.1	0.1

The density is 1.26-1.32g/cm ³ , soluble in benzene, chloroform, carbon disulfide, acetone, methanol, alcohol, difficultly soluble in gasoline, insoluble in water, dilute acid and dilute alkali solution.
TBBS is a delayed action accelerator of vulcanization for natural and synthetic rubber. The speed of vulcanization is similar to CBS's, but it's delaying is larger than the CBS. There is little pollution and the color is changeless. It can be used as rubber products of tyre.