结果表明，十六烷基二甲基（2-亚硫酸）乙基铵具有较好的生物降解性，与常用阻垢缓蚀剂复配有协同增效作用。
The experimental result showed that hexadecylldimethyl(2-sulfite)ethyl ammonium had good biodegradability and synergistic effect by mixing with scale and corrosion inhibitor.
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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