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

共沸物中加入氢氧,分离酚和苯乙酮。

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

试样以过氧熔融分解,热水浸取、酸,定。

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

了以酚酞为指示剂,氢氧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,采用和氢氧的混合物进行处理,得到纯度≥99%的O,O-二乙基代磷酰氯。

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氧反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入氢氧化钠,分离出酚钠和苯乙酮。

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.

提出了以酚酞剂,氢氧化钠滴定剂测定甲氧胺酸含量方法。

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

该粗品通过精制改进,采用硫化钠和氢氧化钠混合物进行处理,得到纯度≥99%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.

采用纤维素与过量氯乙烷及氢氧化钠反应,以甲苯稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入氢,分离出酚和苯乙酮。

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

试样以过熔融分解,热水浸取、酸,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,氢为滴定剂测定甲胺酸含量的方法。

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,采用硫和氢的混合物进行,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反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入钠,分离出酚钠和苯乙酮。

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

试样以过钠熔融分解,热水浸、,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,钠为滴定剂测定甲胺含量的方法。

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,采用硫钠和钠的混合物进行处理,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钠反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入氢氧化钠,分离出酚钠和乙酮。

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

试样过氧化钠熔融分解,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.

提出了酚酞为指示剂,氢氧化钠为滴定剂测定氧胺酸含量的方法。

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氧化钠反应,为稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入氢氧化钠,分离出钠和苯乙酮。

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

试样过氧化钠熔融分解,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,硫化钠和氢氧化钠的混合物行处理,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.

纤维素与过量的氯乙烷及氢氧化钠反应,甲苯为稀释剂,一步法成功地合成乙基纤维素。

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

共沸物中加入氢氧,分离出酚和苯乙酮。

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

试样以过氧熔融分解,热水浸取、酸,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,采用硫和氢氧的混合物进行处理,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氧应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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

共沸物中加入氢氧化钠,分离出酚钠和苯乙酮。

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,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,氢氧化钠为测甲氧胺酸含量的法。

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

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氧化钠反应,以甲苯为稀释,用一步法成功地合成了乙基纤维素。

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

共沸物中加入钠,分离出酚钠和苯乙酮。

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

试样以钠熔融分解,热水浸取、酸,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,钠为滴定剂测定甲胺酸含量的方法。

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

该粗品制工艺的改进,采用硫钠和钠的混合物进行处理,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.

采用纤维素与量的氯乙烷及钠反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。