武威海伦新材料科技有限公司
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Time: 2021-08-15
It is obtained by cyclization of hydrazine hydrate, cyanamide, and formic acid; or is obtained by the action of aminoguanidine bicarbonate and formic acid, followed by heating and cyclization; or guanidine nitrate can be used as a raw material, and firstly react with acetic acid at a temperature of 5~15℃ 8h, then react with oxalic acid, and finally reflux for 5h.
