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p-Toluenesulfonic acid

Overview Refer to quality standards Chemical properties Uses Production method Hazards & Safety Information
p-Toluenesulfonic acid
p-Toluenesulfonic acid
CAS No.
104-15-4
Chemical Name:
p-Toluenesulfonic acid
Synonyms
TsOH;TL65;PTSA;TSA-95;TL65LS;Tsa-hp;Tsa-mh;TSA-65W;TSA-65M;Eltesol
CBNumber:
CB1771154
Molecular Formula:
C7H8O3S
Formula Weight:
172.2
MOL File:
104-15-4.mol

p-Toluenesulfonic acid Properties

Melting point:
106~107℃
Boiling point:
116 °C
Density 
1.07
refractive index 
1.3825-1.3845
Flash point:
41 °C
storage temp. 
Flammables area
form 
Solution
color 
Clear colorless to light yellow
Water Solubility 
soluble
CAS DataBase Reference
104-15-4(CAS DataBase Reference)
NIST Chemistry Reference
P-toluene sulfonic acid(104-15-4)
EPA Substance Registry System
Benzenesulfonic acid, 4-methyl-(104-15-4)

SAFETY

Hazard Codes  C
Risk Statements  34-10
Safety Statements  45-26-23
RIDADR  2585
HazardClass  8
PackingGroup  III
HS Code  29163990
Hazardous Substances Data 104-15-4(Hazardous Substances Data)

p-Toluenesulfonic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy

p-Toluenesulfonic acid Chemical Properties,Uses,Production

Overview

p-toluene sulfonic acid (Its molecular structural formula is p-CH3C6H4SO3H, also known as TsOH, English name is p-toluene sulfonic acid) referred to as PTS, is a non-oxidizing organic acid, white needle or powder crystals, soluble in water, alcohols, ethers and other polar solvents. Easy deliquescence, easy to make wood, cotton fabric dehydration and carbonization, insoluble in benzene and toluene. generating p-cresol when alkali fusion. Commonly, p-toluenesulfonic acid-monohydrate (TsOHH2O) or tetrahydrate (TsOH4H2O) is preferred.
Preparation of methyl p-cresol acid in industry is by using concentrated sulfuric acid on the toluene sulfonation of p-toluenesulfonic acid. The preparated p-toluenesulfonic acid often contains benzene sulfonic acid and sulfuric acid impurities, can be purified in recrystallization of concentrated hydrochloric acid, azeotropic drying.
p-toluene sulfonic acid is widely used as catalyst agent in the synthesis of pharmaceuticals, pesticides, polymerization stabilizer and organic synthesis (esters, etc.), paint intermediates and resin curing agent. And it is also the commonly used acid catalyst in organic synthesis. It is neutralized with sodium hydroxide and then obtains sodium p-toluene sulfonate, and react with phosphorus pentachloride, can obtains p-toluenesulfonyl chloride. The latter used in the nucleophilic substitution reaction, also used as alcohol hydroxyl protective group. p-CH3C6H4SO3Na + PCl5 →p-CH3C6H4SO2Cl.
The use of p-toluenesulfonic acid also catalyzes the protection of dihydrofuran on the alcohol, carboxylic acid esterification, transesterification reaction, making the aldehyde generate acetal.

Refer to quality standards

Item/Index Industrial Grade Pharmaceutical Grade Refined Grade Reagent Grade (Chemically Pure)
Content (as C7H8O3S • H2O)% ≥ 90-93.0 96.0 97.0 98.0
Free acid (H2SO4) ≤% 3.0 0.7 0.5 0.1
Moisture (excluding crystal water) ≤% 4.0 3.5 2.5 1.5
Iron (in Fe ++) ≤ ppm 50 30 30 10
Ignition residue ≤%/0.2 0.2 0.02
Melting point (°C)// 102-105
Ethanol dissolved test/qualified qualified qualified
Water dissolution test/qualified qualified qualified

Chemical properties

Colorless monoclinic sheet or columnar crystals. Soluble in ethanol and ether, slightly soluble in water and hot benzene.

Uses

(1) For chemical reagents, but also for dyes, organic synthesis.
(2) Used as the intermediates of medicine (such as doxycycline), pesticides (such as dicofol), dyes. Also used in detergents, plastics, coatings and so on.
(3) For medicine, pesticides, dyes and detergents, but also for plastics and printing coatings.
(4) Widely used in the catalyst synthetic medicine, pesticides, polymerization of the stabilizer and organic synthesis (esters, etc.). Also used as medicine, paint intermediates and resin curing agent.

Production method

By p-toluenesulfonyl chloride hydrolysis derived. Toluene can also be used as raw materials, sulfonated by sulfuric acid derived.

Hazards & Safety Information

Category:Corrosive articles
Toxicity classification:Low toxicity
Acute toxicity
Oral-rat LD50: 2480 mg/kg
Flammability hazard characteristics
Combustible; fire in the release of toxic sulfur dioxide gas
Storage and transportation characteristics
Storehouse is ventilates, low temperature and dry; Store with base separately
Extinguishing agent
Mist water, carbon dioxide, foam

Chemical Properties

Clear colorless to light yellow solution

Definition

ChEBI: An arenesulfonic acid that is benzenesulfonic acid in which the hydrogen at position 4 is replaced by a methyl group.

p-Toluenesulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products


p-Toluenesulfonic acid Suppliers

Global( 312)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19958 60
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 Abel@chembj.com CHINA 3218 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22058 58
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37122233
+86-21-37127788 Candy@bj-chem.com CHINA 500 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20795 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 14297 60
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1583 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 20001 58
Hebei Ruishun Trade Co.,LTD
86-311-66111018
86-311-66111018 Mike@rsbiology.com CHINA 300 58

View Lastest Price from p-Toluenesulfonic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-16 p-Toluenesulfonic acid
104-15-4
US $7.00 / kg 1kg 99% 100kg career henan chemical co
2018-09-04 p-Toluenesulfonic acid
104-15-4
US $1.00 / G 100G 99.9% 50000tons Hebei Ruishun Trade Co.,Ltd
2018-08-07 p-Toluenesulfonic acid
104-15-4
US $1.00 / KG 1KG 99% Customized career henan chemical co

104-15-4(p-Toluenesulfonic acid)Related Search:


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