Petroleum Sulfonic Acid, Magnesium Salt
Time:2012-09-29 16:40:55,Count:0
Characteristics    excellent cleansing, antirust, anticorrosive, lubricating, emulsifying, solubilizing, dispersing abilities. Synergies compatibility with low alkali calcium petroleum sulfonate.
Synthesis
Currently, sulfonation reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfonates.
Generally, distillate oil and sulfur trioxide react through reactor, then magnesium hydroxide neutralizes, finally obtain product.
US patent 8,921,588 (Process for preparing sulfates and/or sulfonates in a micro-reaction system) presents a synthetic process.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Actives, %, ≥
30.0 - 60.0
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
Liquid
Solid
Heavy metals (as Pb), mg/Kg, ≤
20
20
As, mg/Kg, ≤
3
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