sodium cyanoacetic ester 钠代氰基乙酸酯
Hydroxybenzoic acid propyl ester sodium 尼泊金丙酯钠
4-Hydroxybenzoic acid propyl ester sodium 尼泊金丙酯钠
ester carboxylic sodium 酯基羧酸钠
ester-sodium silicate sand 酯硬化水玻璃砂
sodium dialkyl ester sulfosuccinate 磺基琥珀酸二酯钠
organic ester sodium silicate 有机酯水玻璃
phosphorous acid ester sodium 硬脂酸钠
ester hardened sodium sand 酯硬化水玻璃砂
Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
根据酯在碱性条件下水解反应生成醚的原理，研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
After the pretreatment of PODD, sterol ester in PODD can be transesterified into free sterol with methanol while methanolic sodium as catalyst.
在原料脱臭馏出物预处理后，以甲醇钠为碱催化剂，将原料与甲醇进行反应，使原料中的甾醇酯转化为游离甾醇。
A new process has been developed to synthesize dimethoxy methyl acetoacetate with dimethoxyacetic acid methyl ester and methyl acetate in the presence of sodium methanol.
以二甲氧基乙酸甲酷和乙酸甲酷为主要原料，经甲醇钠催化制备二甲氧基乙酞乙酸甲醋。
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