Petroleum Sulfonic Acid, Calcium Salt
Time: 2012-09-29 16:40:34
Petroleum Sulfonic Acid, Calcium Salt
Synonyms
Calcium petroleum sulfonate;
Calcium petroleum sulfonates;
Sulfonated petroleum, calcium salt;
Sulfonic acids, petroleum, calcium salts;
Category
Anionic Surfactant
>> Sulfonate
>> Aryl Sulfonate
>> Natural Substance Sulfonate
>> Natural Substance (Petroleum Source) Sulfonate
Chemical Numbering System
CASRN61789-86-4
EINECS263-093-9
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
 
Properties
Appearance    (1), brown liquid; (2), solid.
Solubility    insoluble in water.
Stability    stable.
Risk    Solid form: flammable material; irritation, moderate irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.6) label:  
Liquid form: flammable material; irritation, moderate irritation to skin, eye. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.6) label:  
Animal Toxicity
Table 1 Animal toxicity values
rat oral LD50
>20000mg/kg[1]
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, antirust, anticorrosive, lubricating, emulsifying, solubilizing, dispersing abilities.
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 calcium oxide 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
3. Product standards
(1), Chinese standards
(1a), SH/T 0042 Calcium petroleum sulfonate detergent
4. Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1. Typical applications
Use as oil detergent.
Use as rust inhibitor, anticorrosive agent.
Use as lubricant.
2. Petrochemical
Use as oil detergent widely. Has a good oil cleansing performance.
Manufacturers
 
References
[1]: ChemIDplus. 61789-86-4, Sulfonic acids, petroleum, calcium salts
Update: 20131025(1); 20170405(2);