Benzophenone-5
time:2012-10-01 09:06:50,count:0
Note    (1), Avoid using in children products, such as makeup.
Synthesis
2-Hydroxy-4-methoxybenzophenone and chlorosulfonic acid react, then sodium hydroxide or sodium carbonate neutralizes, finally obtain product.
Refer to:
US patent 5,849,955 Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone, etc.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Solid
Actives, %, ≥
95.0
Test Methods
(1), Actives
GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
2. Hazardous substances indexes
Item
Hazardous substances indexes
Solid
Heavy metals (as Pb), mg/Kg, ≤
20
As, mg/Kg, ≤
3
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents - Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents - Determination of total arsenic