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Sodium p-toluenesulfonate

CAS No.
657-84-1
Chemical Name:
Sodium p-toluenesulfonate
Synonyms
Toluene sulfonate;SodiuM p-toluenesulfonic acid;sodiumtosylate;sodiumparatoluenesulphonate;NAXONATE ST;NAXONATE 4ST;tosylate,sodium;Sodium p-tosylate;naxonatehydrotrope;Sodium p-toluenesulf
CBNumber:
CB0422783
Molecular Formula:
C7H9NaO3S
Molecular Weight:
196.2
MDL Number:
MFCD00064388
MOL File:
657-84-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 22:40:32
Product description Number Pack Size Price
Toluene-4-sulfonic acid sodium salt for synthesis 8.21125 5G $35.6
Sodium p-toluenesulfonate 95% 152536 5g $56.7
Toluene-4-sulfonic acid sodium salt for synthesis 8.21125 250g $283
Sodium p-toluenesulfonate 95% 152536 100g $79.7
Sodium p-Toluenesulfonate >90.0%(T) T0271 25g $27
More product size

Sodium p-toluenesulfonate Properties

Melting point >300°C
Boiling point 400℃[at 101 325 Pa]
Density 1.55 g/cm3 (20℃)
vapor pressure <1 hPa (20 °C)
Flash point 500 °C
storage temp. Store below +30°C.
solubility 818g/l soluble
form Powder
pka 6.59[at 20 ℃]
color White to off-white
Water Solubility soluble
Merck 14,9533
BRN 3637479
Stability Stable. Incompatible with strong oxidizing agents.
Cosmetics Ingredients Functions SURFACTANT - CLEANSING
SURFACTANT - HYDROTROPE
InChI 1S/C7H8O3S.Na/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);/q;+1/p-1
InChIKey KVCGISUBCHHTDD-UHFFFAOYSA-M
SMILES [Na+].Cc1ccc(cc1)S([O-])(=O)=O
LogP 0.07 at 20℃
CAS DataBase Reference 657-84-1(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 2V179P6Q43
EPA Substance Registry System Sodium p-tolylsulfonate (657-84-1)
UNSPSC Code 12352107
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38-36
Safety Statements  26-36
WGK Germany  1
RTECS  XT7350000
TSCA  TSCA listed
HS Code  29041000
Storage Class 13 - Non Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
Hazardous Substances Data 657-84-1(Hazardous Substances Data)
REACH Registrations Active
NFPA 704
1
2 0

Sodium p-toluenesulfonate price More Price(46)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.21125 Toluene-4-sulfonic acid sodium salt for synthesis 657-84-1 5G $35.6 2026-04-30 Buy
Sigma-Aldrich 152536 Sodium p-toluenesulfonate 95% 657-84-1 5g $56.7 2026-04-30 Buy
Sigma-Aldrich 8.21125 Toluene-4-sulfonic acid sodium salt for synthesis 657-84-1 250g $283 2026-04-30 Buy
Sigma-Aldrich 152536 Sodium p-toluenesulfonate 95% 657-84-1 100g $79.7 2026-04-30 Buy
TCI Chemical T0271 Sodium p-Toluenesulfonate >90.0%(T) 657-84-1 25g $27 2026-04-30 Buy
Product number Packaging Price Buy
8.21125 5G $35.6 Buy
152536 5g $56.7 Buy
8.21125 250g $283 Buy
152536 100g $79.7 Buy
T0271 25g $27 Buy

Sodium p-toluenesulfonate Chemical Properties,Uses,Production

Chemical Properties

white powder

Uses

Usually used as a supporting electrolyte for depositing polypyrrole membranes, ang also used as a solute to study the performance of resin particles.

Uses

Sodium p-toluenesulfonate was used as a supporting electrolyte for depositing polypyrrole membranes. It was also used as a solute to study the performance of resin particles.

Uses

Sodiump-Toluenesulfonate can be used for high-efficiency for cleaning explosives.

Flammability and Explosibility

Non flammable

Synthesis

A kind of neutralized wastewater for BHT production, in which sodium p-toluene sulfonate is contained in 19.8% and an alkali neutralizer (alkali containing sodium ions) is contained in 3.7%. The specific steps for the production of sodium p-toluene sulfonate using this neutralization wastewater include: adding an appropriate amount of pH adjusting agent (p-toluene sulfonic acid) in the pH adjustment kettle to adjust the pH of the neutralization wastewater to 6 ~ 7, then the pump is transferred to the decolorization kettle, activated carbon is added to the decolorization kettle and the temperature is raised to 80 ~ 90 C., and stirring is carried out for one hour for decolorization, then the pump is transferred to the filter press, the activated carbon is filtered out, and the liquid enters the evaporation concentration kettle, and the evaporation concentration kettle is heated and evaporated to 120 ~ 12 C. at atmospheric pressure. The liquid goes into evaporation and concentration kettle under normal pressure, when it is heated and evaporated to 120125 at normal pressure, it enters into slicer to cool and slice to get the product of sodium p-toluene sulfonate, and the evaporated water vapor condenses and recycles to use for the preparation of alkali neutralizing agent water. The appearance of the product is white flaky solid, after sampling and analyzing, the content of sodium p-toluene sulfonate is 89.4%, which is able to reach the standard of refining grade and meet the market quality requirements.

Purification Methods

Dissolve it in distilled water, filter it to remove insoluble impurities and evaporate it to dryness. Then recrystallise it from MeOH or EtOH, and dry it at 110o. Its solubility in EtOH is not high (maximum 2.5%), so that Soxhlet extraction with EtOH may be preferable. Sodium p-toluenesulfonate has also been crystallised from Et2O and dried under a vacuum at 50o. [Beilstein 11 I 4, 11 II 6, cf Gibson & Reid J Chem Soc 879 1923.]

Global( 473)Suppliers
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Hebei Chuanghai Biotechnology Co., Ltd
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View Lastest Price from Sodium p-toluenesulfonate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
sodium p-toluenesulfonate pictures 2026-05-28 sodium p-toluenesulfonate
657-84-1
$2.00-5.00 1KG 99% 10000kg Hebei Chuanghai Biotechnology Co,.LTD
Sodium p-toluenesulfonate pictures 2026-03-20 Sodium p-toluenesulfonate
657-84-1
$1.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
Sodium p-toluenesulfonate pictures 2025-09-25 Sodium p-toluenesulfonate
657-84-1
$1.00-158.00 1KG 99% Henan Fengda Chemical Co., Ltd
naxonatehydrotrope para-toluenesulfonicacid,sodiumsalt p-toluenesulfonicacid,sodiumsalt,mixtureofisomers sodiumparatoluenesulphonate sodiump-methylbenzenesulfonate sodiump-toluenesulphonate sodiumtosylate tosylate,sodium SODIUM 4-TOLUENESULFONATE SODIUM TOLUENESULFONATE SODIUM P-TOLUENESULFONATE P-TOLUENESULFONIC ACID SODIUM SALT NAXONATE 4ST NAXONATE ST 4-TOLUENESULFONIC ACID SODIUM SALT 4-METHYLBENZENESULFONIC ACID SODIUM SALT sodium toluene-4-sulphonate Sodium p-tosylate p-Toluenesulfonic acid sodiuM p-Toluenesulfonic acid, sodiuM salt 500GR 4-TOLUENESULFONICACIDSODIUM Toluol-4-sulfonsure, Natriumsalz p-Toluenesulfonic acid, sodium salt,99%,mixture of isomers P-Toluenesulfonicacid,Sodiums Sodium p-toluenesulf sodiump-tolylsulfonate sodiumtoluene-p-sulphonate TOLUENESULFONIC ACID SODIUM SALT TOSIC ACID SODIUM SALT TOLUENE-4-SULFONIC ACID SODIUM SALT Benzenesulfonicacid,4-methyl-,sodiumsalt 4-methyl-benzenesulfonicacisodiumsalt SodiuM p-toluenesulfonate 95% Sodium 4-methylbenzenesulfonate:Sodium p-toluenesulfonate Toluene-4-sulfonic acid sodium salt for synthesis Sodium p-toluenesulfonate STS Sodium p-Toluenesulfonate > TOLUENE-4-SULFONIC ACID SODIUM SALT FOR Natriumtoluol-4-sulfonat p-ToluenesulfonicAcid,SodiumSal Sodium p-toluenesulfonate ISO 9001:2015 REACH 4-Toluene Sodium Sulfonate Sodim p-toluenesulfonate p-Toluenesulphonic acid sodium salt, 95% p-Toluenesulphonic Acid Sodium Salt pure, 98% p-TOLUENE SULPHONIC ACID SODIUM SALT For Synthesis Toluene-4-sulphonic acid sodium salt Sodium kohlrabi sulfonate Para Toluene Sulfinic acid Natriumtoluol-4-sulfona Sodium p-Toluenesulfonate, ≥ 90.0% Sodium p-toluenesulfonate SodiuM p-toluenesulfonic acid Toluene sulfonate 657-84-1 C7HNaO3S C7H8O3SHNa C7H7NaO3S