Do mean hydroxyapatite? Hydroxyapatite is a major component of teeth and bones.
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Hydroxyapatite is a naturally occurring mineral form of calcium apatite. It is the primary mineral component of vertebrate bone and tooth enamel. In medical and dental applications, hydroxyapatite is used as a biomaterial for bone tissue repair and regeneration.
O-hydroxy benzoic acid or 2-hydroxy benzoic acid.
as because in 2-hydroxy benzoic acid, there is a possibility of H-bonding which makes the dissociated ion stable and will not combine with H+ ion leaving it free, while it is not so in case of 4-hydroxy benzoic acid.
To synthesize 1-hydroxy-3-butanone from ethyl acetoacetate, first convert ethyl acetoacetate to ethyl acetoacetate phenylhydrazone using phenylhydrazine. Then, cyclize the phenylhydrazone to form the desired 1-hydroxy-3-butanone product. Hydrolyze the phenylhydrazone under acidic conditions to obtain the final product, 11-diphenyl-1-hydroxy-3-butanone.
The melting point of 4-Hydroxy-4,4-diphenyl-butan-2-one is 84-85 °C
Hydroxy gas, also known as Brown's gas, can be produced by electrolyzing water using a specialized electrolyzer that separates hydrogen and oxygen molecules. This gas can be used as a fuel source in some applications due to its high energy content. However, it is important to exercise caution when handling hydroxy gas due to its explosive nature.