Propylene glycol has covalent bonds.
Propylene glycol was proposed as an air germicide; it is also an ingredient in antibacterial solutions.
Ethylene glycol
From www.fao.org/ag/agn/jecfa-additives/specs/Monograph1/Additive-360.pdf Propylene glycol alginate is an ester of alginic acid in which some of the carboxyl groups are esterified with propylene glycol, some neutralized with an appropriate alkali and some remain free.
Would you brush your teeth with anti-freeze from your car's radiator? Absolutely NO, WHY include this ingredient in toothpaste if it is considered harmful?? You are confusing PROPYLENE Glycol with ETHYLENE Glycol. Propylene glycol is not toxic. Ethylene glycol is the substance in engine coolant which will damage internal organs, especially the kidneys. Check out the MSDS for both substances for further information.
Propylene glycol used to be in vehicle antifreeze.
Propylene glycol.
Propelene Glycol is used as a prescribed laxitive and should be used with a pharmists or doctor reccomended dosage and advice. This answer above is incorrect and is referring to polyethylene glycol which is a different substance. Propylene glycol is commonly used as a preservative in food and other products and according to the FDA is generally recognized as safe (GRAS).
Methyl stearate is used as emolient; propylene glycol is used as humectant, preservative and solvent.
because it is an ingredient
Propylene glycol has covalent bonds.
The chemical formula of propylene glycol is C3H8O2.
antifreeze
Mostly ethylene or propylene glycol.
It all depends upon what you want to do with it. Propylene Glycol is more hydrophillic (water loving) and hence hygroscopic then Hexylene Glycol. Both however, are miscIble with water, it is a question of degree. Hexylene Glycol with it's longer carbon chain makes it slightly less water loving and more oil loving. Pure Propylene Glycol can be safely used in food, but HG is not recommended. HG is used in some water-based inks to marry differing HLB value components used in the formulation to a successful union. Cheers DWD
Propylene glycol was proposed as an air germicide; it is also an ingredient in antibacterial solutions.
Propylene glycol in fireball