Diphenyl Guanidine (CAS 102-06-7) is a guanidine derivative carrying two phenyl groups, appears as a white to cream powder with a slight odour, and acts as a secondary accelerator for the sulfur vulcanization of rubber compounds, typically alongside thiazoles in tire, belt and hose manufacturing. It promotes fast curing and high tensile strength.
Typical Properties
| Molecular formula | C13H13N3 |
|---|---|
| Molecular weight | 211.26 g/mol |
| Appearance | white or cream powder with a slight odour |
| Form | Powder |
| Color | Pale Cream |
| Odor | wh. powd., bitter taste, sl. odor |
| Melting point | 150 °C |
| Boiling point | 170 °C |
| Density | 1.19 g/cm³ |
| Water solubility | slightly soluble |
| Flash point | 170°C |
| pH | 10.2 (10g/l, H2O) |
| GHS signal word | Danger · Acute toxicity, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 29252000 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Diphenyl Guanidine
Applications
Used in tire, belt, and hose manufacturing as a secondary accelerator with thiazoles. Also applied as a catalyst in resin systems and corrosion inhibitors.
Safety & Risks
Harmful if inhaled or swallowed; may cause skin sensitization. Handle with gloves and local exhaust ventilation.
Packaging
Supplied in 25 kg PE-lined paper bags or drums. Store sealed, cool, and dry away from sunlight and oxidizers.