The Food and Drug Administration (FDA) has classified propylene glycol as an additive that is “generally recognized as safe” for use in food. It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products. It is a solvent for food colors and flavors, and in the paint and plastics industries.
What is propylene glycol USP/EP approved for?
Propylene glycol USP/EP (pharmaceutical grade) is approved for use as a food additive under E-number E 1520 (with strict maximum limit of 1 g/kg in human foodstuffs).
What is propylene glycol used for in cosmetics?
Propylene Glycol is the most common moisture carrying ingredient, other than water, used in cosmetics because it moisturizes better than glycerin. Is used as a wetting agent and surfactant which gives a product better absorption and promotes spreading of the product on the skin.
What is the flash point of propylene glycol?
propylene glycol by weight have no flash point as obtained by standard test methods. However aqueous solutions of propylene glycol greater than 22% by weight, if heated sufficiently, will produce flammable vapors. Always drain and flush systems containing propylene glycol with water before welding or other maintenance.
What is the color of propylene glycol?
Propylene glycol is clear, colorless, slightly syrupy liquid at room temperature. It may exist in air in the vapor form, although propylene glycol must be heated or briskly shaken to produce a vapor. Propylene glycol is practically odorless and tasteless.
What is the best antifreeze for hydroponics?
Hercules® Cryo-tek™ – 100 antifreeze provides maximum freeze protection for hydroponic heating, cooling, potable water and closed loop solar systems.
What are the health effects of propylene glycol and glycol ethers?
According to a 2010 study, the concentrations of PGEs (counted as the sum of propylene glycol and glycol ethers) in indoor air, particularly bedroom air, has been linked to increased risk of developing numerous respiratory and immune disorders in children, including asthma, hay fever, eczema, and allergies,…
