2,4-Diaminobenzenesulfonic acid
1. Chemical property
2,4-Diaminobenzenesulfonic acid is an important dye intermediates.It is light white powder without pungent odor and is soluble in sodium carbonate,ethanol,readily soluble in hot water,but slightly dissolved in water.As it is a reactive dye intermediates,so it grows to be brown in the air
Melting point:260-266β
Molecular formula:C6H8N2O3S
Molecular mass:188.2
2. Safety notes
Immediately rinse with plenty of water and send to hospital for medical treatment in case of touching eyes.In the operational process,please wear suitable gloves and protective spectacles or protective visor to avoid the irritating to eyes,skin and respiratory tract caused by irritants.
3. Product application
It is prepared for reactive bright yellow X-6G,reactive bright yellow X-HG,reactive brilliant blue K-6G,reactive yellow KD-3G,reactive yellow M-5G,reactive brilliant blue K-BR,reactive brilliant K-GR, brilliant blue M-BR,weak acid bright red,acid mordant brown RH etc.
4. Mass index
Content:Light-white powder ≥99 moisture≤1 insoluble substance≤0.1 HPLC≥99.5
5. Production method
Take m-phenylene diamine as raw material.2,4-Diaminobenzenesulfonic acid is prepared by sulfonation of nitrating acid based on sulfuric acid and fuming sulphuric acid .