Benzylidene acetone exports accounted for first in the country.

苄叉丙酮量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成了新型高效氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成定液中定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生产丙酮和丁醇简史、原理、过程,以及载体和培养基选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以善血液高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成了新型高效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、、氯仿、丙酮、醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水、醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成酰丙酮的中间体酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个酸分子和一个质子（以氧鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生产丙酮和丁的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成新型高效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究丙丁菌发酵法生产丙酮和丁醇的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成了效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生产丙酮和丁醇的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的凝状态，而防止肾小球硬化及月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通一硫酸和丙酮反应,合成了新型高效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以甲和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不其他溶剂（如丙酮和三氯三氟乙烷）就不会，操作用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生产丙酮和丁醇的简史、原理、程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余，计算每枚NRID内炔诺酮释放，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成了新型高效的氧化剂二二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶水，热溶、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作溶剂,对四川汉源花椒作了精提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

乙烯酮和丙酮为原料,用强酸性离子交换树代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（氧鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操作适用回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生产丙酮和丁醇的简史、原理、过程,及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和反应,合成了新型高效的二甲二环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和为原料,氟钾铝作催合成了苄叉。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、醇、氯仿、、醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的,在四丁基溴铵催下,高产率得到四溴碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水醇、醚、及水作溶,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以烯和为原料,用强酸性离子交换树脂代替浓硫酸作为催,直接酯合成酰的中间体酸异烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个酸分子和一个质子（以鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶（如和三氯三氟烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丁菌发酵法生产和丁醇的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄香豆素：可以改善血液的高凝状态，而防止肾小球硬及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用溶解，并用紫外线分光光度仪测定每枚NRID内炔诺剩余量，计算每枚NRID内炔诺释放量，模拟分析NRID主成分炔诺在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成新型高效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝催化剂合成苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究丙丁菌发酵法生产丙酮和丁醇的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。

Benzylidene acetone exports accounted for first in the country.

苄叉丙酮的出口量占全国第一。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和丙酮反应,合成了新型高效的氧化剂二甲二氧环烷。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和丙酮为原料,氟化钾氧化铝作催化剂合成了苄叉丙酮。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨的新鲜试样必须在工业酒精及纯丙酮中洗涤。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该品不于水，热于油脂、石蜡、乙醇、氯仿、丙酮、乙醚。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组成的改良固定液中固定后制成石蜡切片,经HE染色后在显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠液中滴加适量的丙酮,在四丁基溴化铵催化下,高到四溴化碳。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水作剂,对四川汉源花椒作了精油提取研究。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与了反应。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他剂（如丙酮和三氯三氟乙烷）就不会，操作适用于回收孢子接种物。

In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.

本文研究了丙丁菌发酵法生丙酮和丁醇的简史、原理、过程,以及载体和培养基的选择方法。

(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.

( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。

The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮，并用紫外线分光光度仪测定每枚NRID内炔诺酮剩余量，计算每枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。