English name: P-Toluene Sulfonic acid (short for PTSA)
Aliases: p-methylbenzenesulfonic acid, p-toluenesulfonic acid-hydrate, 4-methylbenzenesulfonic acid
Molecular formula: C7H8O3S•H2O
Molecular weight: 190.2
CAS number: 104-15-4, 6192-52-5 (p-toluenesulfonic acid-hydrate)
Implementation standard: Q/HXY 006-2016
EINECS No.: 203-180-0 UN NO.: 2585
HS Code: 2904100000
Product technical indexes are as follows:
|
Item/Indexes |
Mother liquor |
Crude |
Industrial Grade |
Pharmaceutical Grade |
Refined Grade |
Reagent grade |
|
Total acidity ≥% (as sulfonic acid) |
40-65 |
90 |
93/95 |
95/97 |
98/99 |
98/99 |
|
Free acid ≤% |
20-40 |
3-6 |
3/2.5 |
2.5/ 0.7 |
0.5/0.3 |
0.3/0.1 |
|
Moisture (excluding crystal water) ≤% |
/ |
4-12 |
4/3 |
3/2.5 |
1.5/1 |
1 |
|
Fe++ ≤ppm |
/ |
/ |
50 |
30/20 |
20/ 10 |
10 |
|
Residue on ignition ≤% |
/ |
/ |
/ |
0.2 |
0.2 |
0.02 |
|
Melting point (℃) |
/ |
/ |
/ |
/ |
100 |
10 3 |
|
Ethanol dissolution test |
/ |
/ |
/ |
qualified |
qualified |
qualified |
|
Water solubility test |
/ |
/ |
/ |
qualified |
qualified |
qualified |
|
Color |
Yellow and black |
gray white |
white |
white |
white |
white |
|
Can be produced according to customer requirements |
||||||
Packaging: It is divided into Chinese, English, blank and other packaging. The inner packaging is a double-layer film bag, and the outer packaging is: plastic woven, kraft paper, cardboard barrel, etc., with a net weight of 25 kg. Various types of packaging can be customized according to user needs.
The main purpose:
1. It is an important raw material for the synthesis of doxycycline, dipyridamole, amoxicillin, cefadroxil intermediates, etc. in medicine.
2. Widely used as a catalyst in organic chemical synthesis (such as ester products, textile auxiliaries, photographic films, electronic products, new materials, etc.).
3. It is widely used as a curing agent in resin, coating, artificial board, casting, paint and other industries, with fast curing speed and no discoloration of the paint film.
4. Widely used in chemical synthesis such as medicine and pesticides.
5. Used as a catalyst in electronics, new polymer materials, flavors and fragrances, and daily chemical products.
-
Next:None
- Back