—洗发水里含有大概15种化学物质，包括十二烷基硫酸钠、乙二氨四醋酸四钠（译者按：化妆品中的隔离剂，可用作抗菌剂和防腐剂）和丙二醇。 而这三者都是已知的会损害眼睛的物质。
Shampoos contain around 15 chemicals including Sodium Lauryl Sulphate, Tetrasodium and Propylene Glycol, known to cause eye damage.
主要分别介绍用亚硫酸钠与氯乙酸乙酯合成磺酸乙酸钠和亚硫酸钠与氯乙酸合成磺酸乙酸钠。
A method for synthesizing sodium sulfoacetic is discussed, which sodium sulfoacetic is synthesized with sodium sulfite and ethyl monochloro acetate, with sodium sulfite and chloroacetic acid.
用无水硫酸钠吸干米饭中水份，再以乙酸乙脂提取样品中甲胺磷，提取液直接进气相色谱仪测定。
This method is applicable to rapidly determine Methamidophos with GC. Methamidophos in rice is extracted with ethyl acetate to prepare sample solution that dries with sodium sulfate.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
方法原甲酸三乙酯与氰乙酸乙酯缩合，然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸，然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
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