氧化钠

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

物中加入氢氧化钠,分离出酚钠和苯酮。

The sample was molten and decomposed with sodium peroxide,leached and acidified with hot water and constant-volumed.

试样以过氧化钠熔融分解,热水浸取、酸化,定容。

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,氢氧化钠为滴定剂测定甲氧胺酸含量的方法。

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

该粗品通过精制工艺的改进,采用硫化钠和氢氧化钠的混合物进行处理,得到纯度≥99%的O,O-二基硫代磷酰氯。

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氢氧化钠反应,以甲苯为稀释剂,用一步法成功地合成了基纤维素。