1)  stable isotope
硫氢氧同位素
2)  sodium bisulfide
硫氢化钠
1.
The new technology, new equipment and effects in 10 kt/a barium chloride and 3 kt/a sodium bisulfide units were introduced.
介绍了在1万t/a氯化钡及3000t/a硫氢化钠装置中采用的新技术、新设备及所取得的效果,分析了运行中存在的问题,提出了相应的解决办法。
3)  barium hydrosulfide
硫氢化钡
1.
This paper introduces the method of preparing high-purity magnesium hydroxide by double decomposition method with industrial magnesium chloride and barium hydrosulfide as the raws materials.
以工业氯化镁和硫氢化钡为原料,采用复分解法合成高纯氢氧化镁。
4)  ammonium thiocyanate
硫氢酸铵
1.
The behavior for flotation separation of cobalt with sodium nitrate—ammonium thiocyanate—hexadecyl trimethylammonium bromide system and the condition for separation of cobalt with other metal ion were studied.
研究了硝酸钠—硫氢酸铵—溴化十六烷基三甲铵体系浮选分离钴Co(Ⅱ)的行为及其与常见阳离子分离的条件。
2.
Methods In the presence of sodium nitrate the ammonium thiocyanate,malachite green and Co(Ⅱ) can form water-insoluble ion-association complexes.
方法在少量NaNO3存在下,向体系中加入硫氢酸铵和孔雀石绿,使其与Co(Ⅱ)形成不溶于水的三元离子缔合物浮于盐水相上。
5)  sodium hydrosulfide
硫氢化钠
1.
The process improvement of flaky sodium hydrosulfide production;
片状硫氢化钠生产工艺改进
2.
The production method and processing conditions of sulfur,sodium hyposulfite,sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.
介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件,指出硫化氢的综合利用生产工艺简单,产品质量稳定,容易工业化,产品成本低,同时消除了硫化氢尾气对环境的污染,有巨大的经济效益和社会效益,发展前景非常广阔。
3.
Acrylonitrile and sodium hydrosulfide were used as main materials for the synthesis of β-mercaptopropionic acid.
以丙烯腈和硫氢化钠为主要原料,通过正交试验考察了原料摩尔比、加成反应温度、水解时间及硫粉用量4种因素对合成β 巯基丙酸收率的影响。
6)  sodium thiocyanate
硫氢酸钠
1.
Discussion of whitening process of PAN fiber by sodium thiocyanate wet spinning;
硫氢酸钠湿法腈纶增白工艺探讨
参考词条
补充资料:氢同位素动力学同位素效应
分子式:
CAS号:

性质:在化学反应过程中反应物本身因同位素取代而改变能态,引起化学反应速度的差异。氢同位素动力学同位素效应很大,α=kH/kD可达2~10左右。0℃时Al4C3与水反应α=3.9,30℃时Fe与H2SO4反应α=6.6。轻水电解时比重水分解速度快,动力学同位素效应随电极材料、电解条件而变,氢-氘的α在3~12之间。当前采用减容电解来制取终浓重水。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。