Gallic Acid Definition Gallic acid is a colourless crystalline compound obtained from tannin: used as a tanning agent and in making inks, paper, and pyrogallol; 3,4,5-trihydroxybenzoic acid. The chemical formula is C6H2(OH)3CO2H. Gallic acid is found both free and as part of tannins. It is common.....
Zirconium Definition Zirconium is a shiny, grayish-white metallic element that occurs primarily in zircon. It is used to build nuclear reactors because of its ability to withstand bombardment by neutrons even at high temperatures. Its Atomic number 40; atomic weight 91.22; melting point 1,852°C;.....
Phosphonate Definition Phosphonate is a salt or an ester of one of a family of phosphonic acids. A variety of phosphonates occur naturally in many organisms, including plants. Phosphonic acids, typically handled as salts, are generally nonvolatile solids that are poorly soluble in organic solvent.....
Tyrosine Definition Tyrosine (Symbol: Tyr) is a white crystalline amino acid that is derived from the hydrolysis of proteins such as casein and is a precursor of epinephrine, thyroxine, and melanin. It is a non-essential amino acid with a polar side group. Its codons are UAC and UAU. This non-ess.....
Tyramine Definition Tyramine is a colorless crystalline amine found in mistletoe, putrefied animal tissue, certain cheeses, and ergot, or produced synthetically, used as a sympathomimetic agent. It is also known by several other names, which is a naturally occurring trace amine derived from the a.....
Azelaic Acid Definition Azelaic acid is a naturally occurring acid, which is an organic compound with the formula HOOC(CH2)7COOH. It is found in wheat, rye, and barley. It helps the skin to renew itself more quickly and therefore reduces pimple and blackhead formation. It also helps to kill the b.....
Oleic Acid Definition Oleic acid is an organic acid that is prepared from fats and is used in the preparation of oleates and lotions. It is an unsaturated fatty acid that is the most widely distributed and abundant fatty acid in nature. It is odorless, colorless oil, though commercial samples may.....
Fatty Acid Definition Fatty acids are any of a large group of organic acids, especially those found in animal and vegetable fats and oils. Fatty acids are mainly composed of long chains of hydrocarbons ending in a carboxyl group. A fatty acid is saturated when the bonds between carbon atoms are a.....
Potassium Chlorate Definition Potassium chlorate is a white crystalline solid, which is forms a very flammable mixture with combustible materials. It is a compound containing potassium, chlorine and oxygen atoms, with the molecular formula KClO3. Mixture may be explosive if combustible material i.....
Palmitic Acid Definition Palmitic acid is a saturated fatty acid occurring as combustible white crystals in many natural oils (such as spermaceti and palm oil) and fats. Palmitic acid is most commonly produced from palm oil, although it is found in smaller amounts in other vegetable oils as well .....
Glutamic Acid Definition Glutamic acid is a nonessential amino acid (C5H9O4N) occurring widely in plant and animal tissue and having a salt, monosodium glutamate that is used as a flavor-intensifying seasoning. It can be produced in our body from other amino acids, so we do not need to get it fro.....
Brucite Definition Brucite is the mineral form of magnesium hydroxide, which is occurring in tabular, foliated crystals: used in magnesia refractories. Its chemical formula Mg(OH)2. It generally forms soft, waxy to glassy, white or pale-green, gray, or blue crystals, plate aggregates, or fibrous .....