Isopropyl alcoholLast name
|molar mass||60,096 gmol - 1|
|To see||Colorless liquid|
|density||0. ### 786 g / cm3 (20 ° C)|
|Fusion point||-89 ° C (-128 ° F 184 K)|
Denatured alcohol is isopropyl alcohol or ethyl alcohol mixed with water. Denatured isopropyl alcohol does not contain the ethyl alcohol needed in alcoholic beverages, and denatured ethyl alcohol uses denatured alcohol, which contains at least one poison that makes it toxic.
|Vapor pressure||32.4 torr at 20 ° C|
|freezing point||88.0 ° C|
|Refractive index||1.3772 at 20 ° C|
|density||0. ### 7854 g / ml (6554 lb / gal) at 20 ° C|
2 Physical Properties of Propanol
Isopropyl alcohol has a pKa of 17.1. It is an extremely weak acid that is weaker than water, which has a pKa value of 15.7.
Isopropyl alcohol is also very irritating to the digestive tract. Drinking too much can cause vomiting, diarrhea, pain, and bleeding in the stomach and intestines. This can lead to dehydration, low blood pressure, shock, and coma. Alcohol can also be toxic if inhaled.
Isopropyl alcohol is mixed with water for use as an alcoholic antiseptic. It is also used in aftershaves, hand creams, and other cosmetic products. In industry it is used as an inexpensive solvent for cosmetics, medicines, shellac and gums, as well as for the denaturation of ethanol (ethyl alcohol).
Molecular grade isopropyl alcohol is neutral. However, solvent grade isopropyl alcohol is basic (mainly pH around 8).
How does it work
The density of liquid water is approximately 1.0 g / ml.
Isopropyl alcohol (C3H8O), also known as denatured alcohol, is a mixture of alcohol for external use as an antiseptic. It usually contains 70% vol. of absolute alcohol or isopropyl alcohol, the rest consists of water, denaturants and scented oils, which serve as a rubbing surface for muscle and joint pain and
The best preservative is ethyl alcohol (sometimes abbreviated to ethanol or EtOH) diluted no more than 70% with water. Isopropyl alcohol (isopropinol) will work, but ethyl alcohol is needed for further genetic studies. Samples required for genetic studies should be stored in 90% ethyl alcohol or higher.
70% kills 99.99% of everything on the skin. The only 91% reason is when you clean something that shouldn’t get wet. In fact, 70% isopropyl is a better disinfectant. Alcohol has a disinfecting effect by denaturing proteins, a small amount of water increases its effectiveness.
Isopropyl alcohol is also found in many everyday products such as paint thinners, inks, general cleaners, disinfectants, and cloths. 99% isopropyl alcohol is used to clean surfaces and also to prevent infection from minor surface injuries such as scrapes and cuts.