Polypropylene glycol methyl ether
Synonyms
Poly(oxypropylene) monomethyl ether;
Poly(oxy(methyl-1,2-ethanediyl)), alpha-methyl-omega-hydroxy-;
Polypropylene glycol monomethyl ether;
PPG methyl ether;
Category
Non-ionic surfactant
> Polyether
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>>> Alcohol Polyoxypropylene Ether
>>>> Linear Alkanol Polyoxypropylene Ether
Chemical Numbering System
CAS: 37286-64-9
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: (C3H6O)n.C1H4O
Molecular Weight: N/A
Structure
Properties
Appearance (1), liquid.
Solubility soluble in water to insoluble in water.
Stability stable.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
48.7mL/kg[1] |
|
rabbit skin LD50 |
> 20mL/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing, solubilizing, wetting, permeating, lubricating, cleansing abilities. Performance is related to PO number.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
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
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as solvent. For example, used in perfume, dyes, paints, resins, personal care products.
Use as emulsifying agent, dispersing agent.
Use as solubilizing agent.
Use as cleansing agent.
Use as lubricant.
Use as intermediate in organic synthesis.
2, Industrial cleaning
Cleansing agent, paint remover in industrial cleaning.
3, Household cleaning
Cleansing agent in household cleaning.
4, Personal care products
Solvent in personal care products.
Manufacturers
Product members
Propylene glycol methyl ether;
PPG-2 methyl ether;
PPG-3 methyl ether;
PPG-4 methyl ether;
References
[1]: ChemIDplus. 37286-64-9, Polypropylene glycol monomethyl ether
Update: 20130929(1); 20191104(2);