Is propylene carbonate the same as propylene glycol?
Propylene carbonate is mainly used to dissolve or suspend other ingredients in a formulation and also to decrease the thickness of formulations. Propylene glycol is a small, water-soluble alcohol that is a very common ingredient in cosmetics and personal care products.
What is the chemical formula for propylene carbonate?
What does propylene carbonate do?
Propylene Carbonate is used to dissolve other substances and is frequently used with clay gellants (such as montmorillonite or bentonite). Scientific Facts: Propylene Carbonate, also known as cyclic propylene carbonate, is an organic chemical. It is an ester of propylene glycol and carbonic acid.
Is propylene carbonate safe on skin?
Cosmetic products containing up to 20% Propylene Carbonate were es- sentially nonsensitizing and, at most, moderately irritating to human skin, nonphototoxic, and nonphotosensitizing. It is concluded that Propylene Car- bonate is safe as a cosmetic ingredient in the present practices of use and con- cen tration.
What are the side effects to propylene glycol?
Summary At toxic levels, propylene glycol has been found to cause seizures and severe neurological symptoms. There have also been cases of nausea, vertigo and strange sensations.
Is propylene carbonate hazardous?
Potential Health Effects Eye: Causes eye irritation. Skin: Causes skin irritation. A single prolonged skin exposure is not likely to result in the material being absorbed in harmful amounts. Ingestion: No hazard expected in normal industrial use.
What is the solubility of propylene carbonate in water?
Solubility of propylene carbonate in water 17.5% at 25°C Regulatory and Safety Data DOT Hazard Class Not Regulated Storage Store in a cool dry place, away from direct sunlight. EPA applicable waste code(s) Not listed. Dispose of material in an enviromentally acceptable manner.
What is the percentage of xylene in polypropylene?
The term ‘Xylene Solubles’ refers to the percentage of soluble species in homo- and copolymers of polypro- pylene. Its value correlates to the R21 value and to the amorphous content of the polymer. For polypropylene homopolymers, R21 is a measure of tactility parameters like stiffness and hardness.
What kind of solvents can polypropylene be dissolved in?
Polypropylene offers good resistance to non-oxidizing acids and bases, fats and most organic solvents At elevated temperature, polypropylene can be dissolved in nonpolar solvents such as xylene, tetralin and decalin.
What is the refractive index of propylene carbonate?
Refractive index 1.4210 at 20°C Density 1