para toluene sulfonic acid monohydrate
p-Toluenesulfonic acid monohydrate
CAS: 6192-52-5
Molecular Formula: C7H10O4S
para toluene sulfonic acid monohydrate - Names and Identifiers
| Name | p-Toluenesulfonic acid monohydrate |
| Synonyms | Lisinopril EP IMpurity B P-toluene sulfonic acid(water p-Toluenesulfonic acid monohydrate 4-Methylbenzenesulfonic acid hydrate para toluene sulfonic acid monohydrate p-Toluenesulfonic Acid, Monohydrate, ACS |
| CAS | 6192-52-5 |
| EINECS | 203-180-0 |
| InChI | InChI=1/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2 |
| InChIKey | KJIFKLIQANRMOU-UHFFFAOYSA-N |
para toluene sulfonic acid monohydrate - Physico-chemical Properties
| Molecular Formula | C7H10O4S |
| Molar Mass | 190.22 |
| Density | 1,24 g/cm3 |
| Melting Point | 96-99°C(lit.) |
| Boling Point | 140°C 20mm |
| Flash Point | 180 °C |
| Water Solubility | soluble |
| Solubility | Soluble in water, alcohol and ether, |
| Vapor Presure | 4.06E-08mmHg at 25°C |
| Vapor Density | 5.9 (vs air) |
| Appearance | Solid |
| Color | White to pink |
| Merck | 14,9533 |
| BRN | 3568023 |
| PH | 1 (650g/l, H2O, 20℃)(anhydrous substance) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases, most common metals. Protect from moisture. |
| Sensitive | Hygroscopic |
| Refractive Index | 1,382-1,384 |
| MDL | MFCD00142137 |
| Use | Organic synthesis, determination of primary amines, dye industry. |
para toluene sulfonic acid monohydrate - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R34 - Causes burns R37 - Irritating to the respiratory system |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37 - Wear suitable gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 2585 8/PG 3 |
| WGK Germany | - |
| RTECS | XT6300000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 29041000 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 2570 mg/kg |
para toluene sulfonic acid monohydrate - Introduction
Easily deliquescent, easy to make cotton fabric, wood, paper and other carbohydrates dehydrated and carbonized, insoluble in benzene and toluene. p-cresol is produced during alkali melting. This product sometimes contains 1 molecule of crystal water or 4 molecules of crystal water.
Last Update：2022-10-16 17:27:15
para toluene sulfonic acid monohydrate - Reference Information
| Color index | 42655 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | p-toluenesulfonic acid monohydrate is a carboxylic acid organic compound, which can be used as catalyst, pharmaceutical intermediate, pesticide intermediate, casting, resin curing agent, etc. |
| biological activity | p-Toluenesulfonic acid (4-Methylbenzenesulfonic acid, toxic acid, tosic acid, para-toluene) is a strong acid substance. |
| Application | important organic synthesis intermediates, suitable for explosives, pharmaceuticals, synthetic resins, polyethers, cosmetics, tobacco, food, etc.; In the esterification, dehydration, alkylation, dealkylation, Beckmann rearrangement, polymerization and depolymerization reaction reaction unit as a catalyst, stabilizer; In medicine for the synthesis of doxycycline, dipyridamole, naproxen and used in the production of amoxicillin, cefadroxil intermediates. Epoxy and amino resins, coatings and other aspects also have applications. organic synthesis, determination of primary amines, dye industry. |
| production method | 1. Toluene is sulfonated with concentrated sulfuric acid, and the product is filtered to obtain a finished product. 2. Toluene and chlorosulfonic acid at low temperature reaction can be obtained this product. 3. P-Toluenesulfonyl chloride is mixed with water, heated and hydrolyzed to a cooler without oil for about 20h, then decolorized, filtered, reduced pressure, concentrated to obtain crude product, and crystallized with ethyl acetate to obtain the finished product. |
| autoignition temperature | 600°C |
Last Update：2024-05-07 10:16:29
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