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Jesus Rosendo

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What will alcohol do to the freezing point of water?

No it would lower it. This is why de-icer is often alcohol (methanol) based. Alcohol turns to a solid (freezes) at a lower temperature then pure water. Freezing point of pure methanol is -98C


What mixture will thaw ice on a car and what is it made of?

Most de-icer sprays for windshields and car locks contain methanol (methyl alcohol) and propylene glycol (antifreeze). These can be harmful to humans and pets, so should be used sparingly and wiped up after use.


What two chemicals do you need to make and ester for a perfume?

Although esters have a very pleasant smell but they are often used in perfumes due to the presence of amide groups in its structure, which reacts with aldehyde to form highly coloured schiff bases.


What does edp and edt mean?

EDT or Eau De Toilette and EDP or Eau de Parfum are terms gauging the potency of perfume.. These terms refer to the strength of the fragrance, or more specifically, to how much high grade alcohol and/or water that has been added to the fragrance oils. Parfum (generally the most concentrated form you can buy) has 15-25% perfume oil dissolved in alcohol. Any mixture with a lower proportion of oil to alcohol is known as an Eau.


Why 100 percent alcohol doesn't kills bacteria?

Probably because 100% alcohol is very flammable, truly an explosion hazard, hard to keep from evaporating, and lower concentrations will do the job.The alcohols used in the medical disinfection role are about 70% of either ethyl alcohol, iso-propyl alcohol, or maybe a mixture. Also known as "rubbing alcohol". Its VERY poisonous, not only to bacteria. Used for wiping needles medical instruments, etc as a fast way of sterilizing. Some combination of alcholols are delivered in evaporating gels to make a hand wipe that visitors to hospitals can use.Also disinfecting is "de-natured" or industrial alcohol, which is a mixture of ethanol with 10% methanol, and almost no water. The industrial type is stained purple, and includes a foul tasting disinfectant emetic to discourage drinking it (because methanol is toxic causing blindness, insanity and death). The lab type is clear, smells of vodka, and is just as toxic! It will sterilize medical equipment.