Name | Sodium 4-methylbenzenesulfonate |
Synonyms | sodiumtosylate tosylate,sodium naxonatehydrotrope sodiump-toluenesulphonate Sodium p-toluenesulfonate sodiumparatoluenesulphonate 4-methylbenzenesulfonic acid sodiump-methylbenzenesulfonate P-toluenesulfonic acid sodiura Sodium 4-methylbenzenesulfonate 4-Toluenesulfonic acid sodium salt para-toluenesulfonicacid,sodiumsalt p-toluenesulfonicacid,sodiumsalt,mixtureofisomers |
CAS | 657-84-1 |
EINECS | 211-522-5 |
InChI | InChI=1/C7H8O3S.Na.H/c1-6-2-4-7(5-3-6)11(8,9)10;;/h2-5H,1H3,(H,8,9,10);;/rC7H8O3S.HNa/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H |
InChIKey | KVCGISUBCHHTDD-UHFFFAOYSA-M |
Molecular Formula | C7H9NaO3S |
Molar Mass | 196.2 |
Density | 1.55 g/cm3 (20℃) |
Melting Point | >300°C |
Boling Point | 400℃[at 101 325 Pa] |
Flash Point | 500°C |
Water Solubility | soluble |
Solubility | Soluble in water. |
Vapor Presure | <1 hPa (20 °C) |
Appearance | White crystal |
Color | White to off-white |
Merck | 14,9533 |
BRN | 3637479 |
pKa | 6.59[at 20 ℃] |
Storage Condition | Store below +30°C. |
Stability | Stable. Incompatible with strong oxidizing agents. |
Sensitive | Easily absorbing moisture |
MDL | MFCD00064388 |
Physical and Chemical Properties | Character white powder crystal. soluble in water. |
Use | Mainly used in organic synthesis industry, in medicine for the synthesis of doxycycline, dipyridamole, naproxen and for the production of amoxicillin, cefadroxil Intermediate; Slurry conditioner for chemical industry and synthetic detergent |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36 - Irritating to the eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
WGK Germany | 1 |
RTECS | XT7350000 |
HS Code | 29041000 |
white powder Crystal, soluble in water.
The toluene is sulfonated with 96% ~ 98% sulfuric acid to obtain p-toluenesulfonic acid, which is neutralized with liquid alkali to obtain crude p-toluenesulfonate, then decolorized, concentrated, crystallized and centrifuged to obtain the finished product.
It is mainly used in the dye industry. It is used as an additive for ammonium bicarbonate crystallization in fertilizer production to reduce the water content of ammonium bicarbonate and prevent its agglomeration. In the production of synthetic detergents, it is used as a conditioning agent for slurries. It is also used as a surfactant.
see p-toluenesulfonic acid. The use of plastic bags, glass fiber jacket woven bags, each bag of 50kg. Store in a cool, ventilated, dry place. According to the general provisions of the storage and transportation of chemicals.
LogP | 0.07 at 20℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | sodium p-toluenesulfonate is a kind of anionic surfactant, which is also an important raw material for organic synthesis industry and a synthetic intermediate for medicine. It is reported in the literature that it can be obtained by the reaction of sulfuric acid and toluene. |
preparation | a BHT production neutralization wastewater containing 19.8% sodium p-toluenesulfonate and an alkali neutralizer (alkali containing sodium ions) the content was 3.7%. The specific steps of using the neutralized wastewater to produce sodium p-toluenesulfonate include: adding an appropriate amount of pH regulator (p-toluenesulfonic acid) to adjust the pH value of the neutralized wastewater to 6~7 in the pH adjustment kettle, and then pumping into the decolorization kettle, add activated carbon in the decolorization kettle and temperature to 80~90 ℃, stirring for 1 hour after decolorization, pump into the filter press, filter activated carbon, liquid into the evaporation and concentration kettle, when the product is heated and evaporated under normal pressure to a normal pressure of 120-125 ° C., the product sodium p-toluenesulfonate is obtained by cooling and slicing in a microtome, and the distilled water vapor is condensed and recovered to prepare water for the alkali neutralizer. The appearance of the product is white flaky solid. After sampling and analysis, the content of sodium p-toluenesulfonate is 89.4%, which can reach the refined grade standard and meet the market quality requirements. |
Application | slurry conditioner for chemical industry and synthetic detergent mainly used in organic synthesis industry, in medicine for the synthesis of doxycycline, dipyridamole, naproxen and for the production of amoxicillin, cefadroxil intermediates |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |