포름산나트륨

용도1) 포름산 및 옥살산 제조에 이용된다. 2) 환원제로서 유기 합성, 염색 공업에 이용된다. 3) 분석 화학에서는 귀금속 침전제로서 이용된다.

용도1) 포름산 및 옥살산 제조에 이용된다. 2) 환원제로서 유기 합성, 염색 공업에 이용된다. 3) 분석 화학에서는 귀금속 침전제로서 이용된다.

개요Sodium formate, HCOONa, is the sodium salt of formic acid, HCOOH. It usually appears as a white deliquescent powder.

용도Sodium formate is used in several fabric dyeing and printing processes. It is also used as a buffering agent for strong mineral acids to increase their pH, and as a food additive ( E237 ) .

일반 설명Sodium formate is the colorless sodium salt of formic acid. It can be prepared by reacting formic acid with sodium hydroxide or carbonate. Its crystal structure has been investigated. Its crystals exhibit monoclinic-holohedral symmetry.

Sodium formate can be prepared in the laboratory by neutralizing formic acid with sodium carbonate. It can also be obtained by reacting chloroform with an alcoholic solution of sodium hydroxide. CHCl3 + 4NaOH → HCOONa + 3NaCl + 2H2O or by reacting sodium hydroxide with chloral hydrate. C2HCl3(OH)2 + NaOH → CHCl3 + HCOONa + H2O The latter method is, in general, preferred to the former because the low aqueous solubility of CHCl3 makes it easier to separate out from the sodium formate solution, by fractional crystallization, than the soluble NaCl would be. For commercial use, sodium formate is produced by absorbing carbon monoxide under pressure in solid sodium hydroxide at 160 °C. CO + NaOH → HCOONa Sodium formate may also be created via the haloform reaction between ethanol and sodium hypochlorite in the presence of a base.