roduct Description of 4‑Methylbenzenesulfonhydrazide CAS#1576‑35‑8 Also known as p‑toluenesulfonyl hydrazide, this substance occurs as white crystalline solids. It dissolves readily in alkaline solutions and shows good compatibility with methanol, ethanol and butanone. It is only sparingly soluble in water and aldehydes, while benzene and toluene cannot dissolve it.
It acts as a blowing agent for natural rubber, synthetic rubber and multiple plastic materials. It helps generate fine closed‑cell foamed structures within rubber‑plastic articles, which feature low shrinkage performance and enhanced tear strength. Furthermore, it functions as a key organic‑synthesis intermediate, especially for the manufacture of pharmaceutical and agro‑chemical products.
4-Methylbenzenesulfonhydrazide Chemical Properties
| Melting point | 103-108 °C(lit.) |
| Boiling point | 340.5±35.0 °C(Predicted) |
| Density | 1.42g/cm3 |
| Vapor pressure | 0Pa at 20℃ |
| Refractive index | 1.5400 (estimate) |
| Fp | 60°C |
| Storage temp | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
| Solubility | 5g/l |
| Pka | 9.39±0.10(Predicted) |
| Form | Powder |
| Color | White or off-white to slightly grayish |
| Water Solubility | 5 g/L (15 ºC) |
| Sensitive | Moisture Sensitive |
| BRN | 610130 |
| Stability | Light Sensitive |
| InChIKey | ICGLPKIVTVWCFT-UHFFFAOYSA-N |
| LogP | 0.55 at 25℃ |
| CAS DataBase Reference | 1576-35-8(CAS DataBase Reference) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-, hydrazide (1576-35-8) |
Safety Information
| Hazard Codes | F,Xn |
| Risk Statements | 11-22-44-2017/11/22 |
| Safety Statements | 16-26 |
| RIDADR | UN 3226 4.1 |
| WGK Germany | 3 |
| RTECS | MW0210000 |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | II |
| HS Code | 29280090 |
Product Application of 4-Methylbenzenesulfonhydrazide CAS#1576-35-8
This product is used as a foaming agent for natural rubber, synthetic rubber, and various plastics, enabling the formation of fine, closed-cell structures in rubber and plastic products. The resulting materials exhibit low shrinkage and high tear resistance.
