IS90
Chemical Name: polymer sulfur
Molecular Formula: Su
CAS NO. : 9035-99-8
Executive standard:GB/T18952-2017
Specification:
|
Item
|
IS 90
|
IS HS 70-20
|
IS HS 60-33
|
IS 60-10
|
HS OT-20
|
HD OT-20
|
|
Appearance
(Visual inspection) |
Yellow powder
|
Yellow andnon-risiing powder
|
||||
|
Element SulfurContent, %≥ |
99.50
|
79.00
|
66.00
|
89.00
|
79.00
|
79.00
|
|
Insoluble Sulfur Content,% ≥ |
90.00
|
70.00
|
6..00
|
54.00
|
75.00
|
75.00
|
|
Oil Content,% |
-
|
19.00～21.00
|
32.00～34.00
|
9.00～11.00
|
19.00～21.00
|
19.00～21.00
|
|
|
-
|
79.0
|
75.0
|
-
|
80.00
|
80.00
|
|
Acidity(H2SO4),% ≤ |
0.10
|
0.05
|
0.05
|
0.05
|
0.05
|
0.05
|
|
Loss ondrying(60oC),% ≤ |
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
0.50
|
|
Ash, % ≤ |
0.30
|
0.30
|
0.30
|
0.30
|
0.30
|
0.30
|
|
Residues on 150μmsieve, %≤ |
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
Properties: nature nontoxic, combustible, yellow powder. As with the S-isomer, said mu-sulfur, high polymerization forms were not soluble in carbon disulfide and other solvents. Mu-sulfur instability can be gradually transformed into cubic crystal-sulfur, a few weeks at room temperature 50% change, as long as 80oCwith changes in a few minutes, this need by adding stabilizer to reduce its rate of change.
Application: uses insoluble sulfur used rubber industries, as curing agents make rubber surface spray cream, which will improve the steel-adhesive binding, because the plastic uniform distribution, which would ensure the quality of vulcanization, is the best rubber curing agent, it is widely used tire carcass compound , in particular meridian tires all steel, can also be used for cable, Cots, rubber products such as rubber compound.
Packing: Polypropylene knitted bags lined with polyethylene bags.Net weight 25kg per bag.
Storage: The product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight.
Next product： None