If you choose a supplement you can enroll in a Blue Medicare Rx Plan to cover your prescription drugs. To compare plan premiums in your area check out the official Medicare site and enter you State and County to search for Blue Medicare PPO or other Medicare Advantage Plans offered by Blue Cross Blue Shield.
An acetal is a functional group with the following connectivity R 2 C(OR') 2, where both R' groups are organic fragments. The central carbon atom has four bonds to it, and is therefore saturated and has tetrahedral geometry.
Nital is a name and is a solution of alcohol and nitric acid commonly used for routine etching of metals. It is especially suitable for revealing the microstructure of carbon steels. The alcohol can be methanol, ethanol or methylated spirits. Mixtures of ethanol and nitric acid are potentially explosive.