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5.Thiourea
dioxide
Molecular formula: CH4N2O2S
Molecular weight: 108.12
CAS No.4189-44-0
Shapes
and properties: white crystal pearl, nonpoisonous
and tasteless, strong reduction, good stable.
Usage: reductant, decolourizer,
stabilizer, organic compoundand sensibilization. And it
is widely used in printing and dyeing, paper --making.
90% of the products are sold in the USA, Japan, Hongkong,
even European countries and areas.
| Specification |
First
grade |
| Purity%
≥ |
99.0 |
| Thiourea
%≤ |
0.10 |
| Sulphate
%≤ |
0.17 |
| Fe%≤ |
0.002 |
| Moisture
%≤ |
0.10 |
|
|
|
6.
Propanetriol
CAS No.:
56-81-5
Molecular Formula:
C3H8O3
Specification:
|
Sales Code |
HYHGLY-995 |
|
Grade |
Super-class |
|
Appearance |
Transparent No Suspension
|
|
Flavor |
No peculiar smell |
|
Color(APHA)
≤ |
20 |
|
Glycerine(%)
≥ |
99.5 |
|
Density(20¡æ
g/ml) ≥ |
1.2598 |
|
Chloride(Cl
%) ≤ |
0.001 |
|
Sulfuric
Ash(%)≤ |
0.01 |
|
Acidity
or Alkalinity(mmol/100g)≤ |
0.064 |
|
Saponification
Equivalent(mmol/100)≤ |
0.64 |
|
Arsenic(AS,
mg/kg) ≤ |
2 |
|
Heavy Metal(pb,
mg/kg) ≤ |
5 |
|
Reducing Substance |
No precipitate,No silver mirror
|
|
|
Usage: Widely used
in textile, food, paper making, metal working, paint,
daily chemical, petroleum chemical, medicine, tobacco
and war industry, etc.
Properties: Colorless
or yellowish transparent viscous liquid. No poison,
peculiar smell or corrosiveness, but has strong
hydroscopicity. It can form various esters reacting
with organic and inorganic acid and form polyglycerol
under particular conditions.
Packing: In 250kg net
galvanized steel drum or plastic drum. Store in
dry, cool and ventilated place. |
|
|
