41. Many indirect systems use antifreeze ( e . g ., propylene glycol ) in the heat transfer fluid. 42. The page advises using " animal-friendly products that use propylene glycol rather than those containing ethylene glycol ." 43. Those cigarettes also include such not-so-cookieish items as glycerol, propylene glycol , isovaleric acid, hexanoic acid and 3-methylpntanoic acid. 44. Melarsoprol, invented almost 70 years ago, is melarsen oxide dissolved in propylene glycol _ literally, arsenic in antifreeze. 45. Alcohol and propylene glycol present in some topical preparations may dry the scalp, resulting in dandruff and contact dermatitis. 46. Propylene glycol does not cause sensitization, and it shows no evidence of being a carcinogen or of being genotoxic.47. _Propylene glycol , a deicing fluid. 48. Propylene glycol / water haze fluid is sometimes referred to as " water based haze " to avoid ambiguity.49. The liquid typically contains 95 % propylene glycol and glycerin, and the remaining 5 % being flavorings and nicotine. 50. If the highest internal temperature will not exceed, then propylene glycol might be used as a heat transfer medium.
