Product Description
Thiosalicylic acid, alternatively named o-mercaptobenzoic acid, exists as white triclinic crystals or a white solid. It dissolves readily in ethanol and glacial acetic acid, while being sparingly soluble in water.
It is employed in the synthesis of thioindigo-type dyes and acts as an analytical reagent for iron detection. Furthermore, it is used in the electroplating sector for corrosion prevention and surface finishing of ferrous metals, and also functions as a coloring agent within the ceramics industry.
Chemical Properties
| Melting point | 162-165 °C (lit.) |
| Boiling point | 247.55°C (rough estimate) |
| Density | 1.49 |
| Refractive index | 1.5100 (estimate) |
| Fp | 150 °C |
| Storage temp | Store below +30°C. |
| Solubility | DMSO (Slightly), Methanol (Slightly) |
| Pka | pK1:4.05(0) (20°C) |
| Form | Fine Crystalline Powder |
| Color | White to yellow |
| Water Solubility | soluble in hot water |
| Sensitive | Air & Light Sensitive |
| Merck | 149360 |
| BRN | 508507 |
| InChIKey | NBOMNTLFRHMDEZ-UHFFFAOYSA-N |
| LogP | 2.39 |
| CAS DataBase Reference | 147-93-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, 2-mercapto-(147-93-3) |
| EPA Substance Registry System | Benzoic acid, 2-mercapto- (147-93-3) |
Safety Information
| Hazard Codes | Xi,Xn,N |
| Risk Statements | 36/37/38-20/21/22 |
| Safety Statements | 26-36/37/39-36 |
| WGK Germany | 3 |
| RTECS | DH3325000 |
| F | 46288 |
| TSCA | Yes |
| HS Code | 29309070 |
| Hazardous Substances Data | 147-93-3(Hazardous Substances Data) |
| Toxicity | mouse,LD50,intraperitoneal,50mg/kg (50mg/kg),National Technical Information Service. Vol. AD277-689, |
Product Application
It is mainly deployed in the pesticide, dye and rubber manufacturing sectors. Additionally, it is adopted for manufacturing pharmaceuticals including methyl salicylate. Furthermore, it finds applications in the electroplating industry as a corrosion inhibitor and surface-treatment agent for ferrous metals, as well as a colorant in ceramic production.
