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P-toluene sulfonic acid


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.

 
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