发布时间:2025-02-04 19:31:39
用猪油制作肥皂,主要是将猪油、氢氧化钠(烧碱)、氯化钠、乙醇等材料进行溶解、加热、烤制等一系列的步骤,油脂在经过与碱作用后,生成皂化液和甘油,经过再提纯和加工后,就制成了肥皂。
网上找零活工作好几年了我想自己找点小活干刮腻子刷乳漆改水电家装
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