The absorption of sodium stearate on hemihydrate calcium sulfate whiskers surface is uneven and the absorption state changes with additive amount.
硬脂酸钠在半水硫酸钙晶须表面的吸附并不均匀，同时吸附状态也随用量的改变而改变。
The present invention is related to an improved technological process for producing sodium nitrate by the double decomposition of calcium nitrate and sodium sulfate.
本发明涉及到对用硝酸钙和硫酸钠复分解而得硝酸钠的工艺的改进方法。
Study on effect increased weight by compound nutrition block which composed salt, the urea, the molasses, the calcium hydrogen phosphate and the sodium sulfate.
用膨润土、食盐、尿素、糖蜜、磷酸氢钙和硫酸钠等为主要原料制作成复合营养舔块来研究其对山羊增重效益的影响。
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