Chinese Name: P-toluene sulfonic acid
Product Name: p-Toluene sulfonic Acid
Alias:Methylbenzenesulfonic acid; Toluenesulfonic acid; Tosic acid; P-Toluene Sulfonic Acid; P-Toluene Sulphonic Acid; para toluene sulfonic acid; para toluene sulphonic acid; PARATOLUENE SULPHONIC ACID; PTS ACID; 4-methylbenzenesulfonic acid; ParaTolune Sulfonic Acid
CAS #:104-15-4,6192-52-5
Molecular formula:C7H8O3S·H2O
Molecular weight:190.2; 172.20
Molecular structure:
UN code:2585
Commodity code :2904100000（HS-code）
Density: 1.34g/cm3
Water Solubility: soluble
Physico-chemical property ：
appearance:colorless crystal
melting point:102-105℃
boiling point:140℃
solubility:easily soluble in ethyl alcohol and diethyl ether;lightly soluble in water and hot benzene
Product uses:
Medicine used in the synthesis of doxycycline (hydrogen,. Yi doxycycline and Lynn doxycycline etc.), dipyridamole, amoxicillin, cephalosporins hydroxylamine benzyl D860 pharmaceutical intermediates and other important raw materials;Widely used in organic chemical industry.In acrylate, textile auxiliaries, photographic film, polymerization of stabilizer and organic synthesis catalyst (esters);In resin, paint, man-made board, casting, paint and other industries are widely used as curing agent, and fixed speed, the film does not change color;Is also a synthetic ethoxy quinoline important raw materials.Also widely used in pesticide synthesis industry (dicofol) chloramine T, paint;Cli acid, etc.
| Item/index |
Industrial grade
|
Medical grade
|
Refined grade
|
Reagent grade
|
| Total acidity ≥%(sulfonic acid) |
93.0
|
95.0
|
97.0
|
99.0
|
| Free acid ≤% |
3.0
|
2.0
|
0.7
|
0.1
|
| Moisture(not includingcrystal water )≤% |
4.0
|
3.0
|
2.3
|
0.9
|
| Fe++ ≤ppm |
50
|
30
|
20
|
10
|
| Ignition residue ≤% |
/
|
0.2
|
0.2
|
0.02
|
| Melting point(oC) |
/
|
/
|
/
|
102-105
|
| Ethanol solubility expenriment |
qualified
|
qualified
|
qualified
|
qualified
|
| Water solubility expenriment |
qualified
|
qualified
|
qualified
|
qualified
|
Packaing:in plastic woven bag lined with plastic film for industrial,medical and refined degree,25kg/bag;Round fiber can lined with plastic film for reagent degree,25kg/drum;Or on requirements.