The Pure Food and Drug Act’s main aim was to inform consumers of the existence of certain substances in food that was available for general purchase. The substances specifically named in the Pure Food and Drug Act included alcohol, morphine, opium, cocaine, heroin, and cannabis as at the t...
The light-sensitive material can be prepared according to one of the methods usually employed in diazo type printing and in photography. It is possible, for instance, simply to apply an aqueous or an aqueous-alcoholic solution of the mixtures of diazo compounds and silver salts on a base, for...
Methyl alcohol is also an ingredient in some antifreeze mixtures, in windshield wiper fluid, and is used as a solvent in various paints and varnishes. A growing application of methyl alcohol is as a fuel, either directly, or in the manufacture of biodiesel. It has been used in pure form ...
It is also used in anesthesia mixtures, ensuring that the patient gets a consistent supply of the gas while unconscious. The element also plays a role in welding and industry, being combined with substances like acetylene, for example, to make welding torches. Although pure oxygen is used ...
HPLC is usually reverse-phase, so the stationary phase is nonpolar. This makes the polar mobile phase and more polar substances being analyzed elute faster. Methanol is less polar than water, but more polar than organic solvents. Thus, using it in place of water will decrease elution time of...
Metal smelting in any form has given humans leaps and bounds in technology. Think of the Ancient Egyptians. They smelted bronze, iron, gold and silver. Most of their weapons were made from bronze and one of the earliest known iron blades was found over there. ...
with oxygen and delivering it to them. The best part of that is that now those who couldn't go out and do things because they were confined to their home are now able to get out and move around and do the things that they weren't able to do before. I love it. Technology is ...
Metallurgical engineering is a field of engineering that is focused on working with metals. The main areas of focus in this field...
about 7 years ago that what I thought for several years was lactose intolerance was actually a severe reaction to carrageenan. I could eat all I wanted of an ice cream that was carrageenan-free. But, even a small bowl of ice cream with carrageenan could be followed by cramps and diarrhea...