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- Details for p-Toluene sulfonic Acid
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p-Toluene sulfonic Acid 6192-52-5104-15-4
Category : Catalyst and Auxiliary/Other Auxiliary Agent
CAS NO : 6192-52-5104-15-4 EC NO : 203-180-0 MF : C7H8O3S MW : 172.2016 Specification : 90 93 95 97 98 99 Packing : 25 kg /bag, packed inbags, inner with plastics. Product description : 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 customized according to customer requirementsCan 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.
Uses : It is used in synthesis of doxycycline on medicine, dipyridamole, amoxicillin, hydroxyl ammonia benzyl cephalosporin intermediates such as important raw material; Widely used in organic chemical industry; In dilute acid ester c, textile auxiliaries, photo Synonyms : 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;p-Toluenesulfonic acid(Anhydrous);P-Toluene Sulfunic acid; Molecular Structure : 
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p-Toluene sulfonic Acid