a mixture composed of different substances or the same substance in different phases, such as solid ice and liquid water
with all water removed, especially water of crystallization
a chemical that consumes or renders inactive the impurities in a mixture
a salt of hydrofluoric acid consisting of fluorine, as sodium fluoride, NaF, or a compound containing fluorine, as methyl fluoride, CH3F
existing as free, uncombined atoms
any of a number of polymers containing alternate silicon and oxygen atoms and that are fluid, resinous, rubbery, extremely stable in high temperatures, and water-repellent
trademark a grey to colourless soluble crystalline solid that is used as a photographic developer; 2,4-diaminophenol dihydrochloride. Formula: C6H3(NH2)2(OH).2HCl