氢氧化钠

Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.

共沸中加入氢化钠,分离出酚钠盐和苯乙酮。

The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.

提出了以酚酞为指示剂,氢化钠为滴定剂测定盐酸盐含量的方法。

The mixture was refined by sodium sulfide and sodium hydroxide to afford an O,O-diethyl thiophosphoryl chloride at a purity of 99%.

该粗品通过精制艺的改进,采用硫化钠和氢化钠的进行处理,得到纯度≥99%的O,O-二乙基硫代磷酰氯。

Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

采用纤维素与过量的氯乙烷及氢化钠反应,以苯为稀释剂,用一步法成功地成了乙基纤维素。