摘要:
High-purity trimethylaluminum has the following impurity contents: organosilicon components≦0.5 ppm, chlorine components≦20 ppm, hydrocarbon components≦1,000 ppm, Ca≦0.05 ppm, Fe≦0.05 ppm, Mg≦0.05 ppm, Na≦0.05 ppm, Si (Si components other than the organosilicon components)≦0.07 ppm, Zn≦0.05 ppm, and S≦0.05 ppm. The high-purity trimethylaluminum can be obtained by removing impurities from crude trimethylaluminum through distillation and evaporation.
摘要:
A method of purifying an organometallic compound comprising distilling the organometallic compound for purification while blowing an inert gas through a vapor of the organopolysiloxane, thereby removing from the organometallic compound an impurity having a higher vapor pressure than the organometallic compound.
摘要:
High-purity trimethylaluminum has the following impurity contents: organosilicon components≦0.5 ppm, chlorine components≦20 ppm, hydrocarbon components≦1,000 ppm, Ca≦0.05 ppm, Fe≦0.05 ppm, Mg≦0.05 ppm, Na≦0.05 ppm, Si (Si components other than the organosilicon components)≦0.07 ppm, Zn≦0.05 ppm, and S≦0.05 ppm. The high-purity trimethylaluminum can be obtained by removing impurities from crude trimethylaluminum through distillation and evaporation.
摘要:
A method of purifying an organometallic compound comprising distilling the organometallic compound for purification while blowing an inert gas through a vapor of the organopolysiloxane, thereby removing from the organometallic compound an impurity having a higher vapor pressure than the organometallic compound.
摘要:
A contaminated Group III metal hydrocarbon is purified by providing an adduct of Group III metal hydrocarbon with a Lewis base in a solvent having a boiling point which is up to 200° C., but at least 30° C. higher than the boiling point of the Group III metal hydrocarbon, separating the solvent from the adduct, and heating the adduct for thermal dissociation, thereby releasing the Group III metal hydrocarbon in high purity form.
摘要:
A contaminated Group III metal hydrocarbon is purified by providing an adduct of Group III metal hydrocarbon with a Lewis base in a solvent having a boiling point which is up to 200° C., but at least 30° C. higher than the boiling point of the Group III metal hydrocarbon, separating the solvent from the adduct, and heating the adduct for thermal dissociation, thereby releasing the Group III metal hydrocarbon in high purity form.
摘要:
Trialkylgallium is prepared by reacting a gallium halide or alkyl gallium with trialkylaluminum in a solvent having a boiling point which is at least 10° C. higher than the boiling point of the trialkylgallium, such as mesitylene or o-dichlorobenzene. High purity alkyl gallium is obtained in high yields.
摘要:
An organometallic compound vaporizing and feeding system includes a carrier gas feed passageway connecting a carrier gas source to a container containing an organometallic compound MO and having a carrier gas mass flow controller, an MO gas passageway connecting the container to an in-line monitor for transporting the MO gas, a sample gas passageway connecting the in-line monitor to a sample inlet of an ICP spectrometer, a standard gas passageway connecting a gas cylinder filled with a calibration standard gas to the sample gas passageway and having a standard gas mass flow controller, and a diluent gas passageway connected to the standard gas passageway for passing a diluent gas for adjusting the concentration of the standard gas and having a diluent gas mass flow controller.
摘要:
A method for producing an isocyanate group-containing siloxane compound is provided. In this method, a halogenated siloxane compound represented by the following general formula (1): or the following general formula (2) wherein R1, R2, R3, and R4 are independently hydrogen atom, a monovalent hydrocarbon group containing 1 to 8 carbon atoms, or a siloxy group represented by OSiR5R6R7 wherein R8, R6, and R7 are a monovalent hydrocarbon group containing 1 to 8 carbon atoms, X is a halogen atom, n is an integer of 1 to 10, a is 0, 1, or 2, and b is an integer of 2 to 9; is reacted with a cyanate salt represented by the following general formula (3): Mm+(OCN)m (3) wherein M represents an alkali metal or an alkaline earth metal, and m is 1 or 2. The isocyanate group-containing siloxane compound produced is represented by the following general formula (4): or the following general formula (5): wherein R1, R2, R3, R4, n, q, and a are as defined above.
摘要翻译:提供含异氰酸酯基的硅氧烷化合物的制造方法。 在该方法中,由以下通式(1)表示的卤代硅氧烷化合物或其中R 1,R 2,R 3和R 4独立地为氢原子,含有1至8个碳原子的一价烃基的通式(2) 或由OSiR 5 R 6 R 7表示的甲硅烷氧基,其中R 8,R 6和R 7为含有1至8个碳原子的一价烃基,X为卤素原子,n为1至10的整数,a为0,1或2 ,b为2〜9的整数。 与由以下通式(3)表示的氰酸盐反应:<?in-line-formula description =“In-line formula”end =“lead”?> Mm +(OCN)m(3) line-formula description =“In-line Formulas”end =“tail”?>其中M表示碱金属或碱土金属,m为1或2.含异氰酸酯基的硅氧烷化合物由以下 通式(4):或以下通式(5):其中R1,R2,R3,R4,n,q和a如上定义。
摘要:
A method for producing an isocyanate group-containing siloxane compound is provided. In this method, a halogenated siloxane compound represented by the following general formula (1): or the following general formula (2) wherein R1, R2, R3, and R4 are independently hydrogen atom, a monovalent hydrocarbon group containing 1 to 8 carbon atoms, or a siloxy group represented by OSiR5R6R7 wherein R8, R6, and R7 are a monovalent hydrocarbon group containing 1 to 8 carbon atoms, X is a halogen atom, n is an integer of 1 to 10, a is 0, 1, or 2, and b is an integer of 2 to 9; is reacted with a cyanate salt represented by the following general formula (3): Mm+(OCN)m (3) wherein M represents an alkali metal or an alkaline earth metal, and m is 1 or 2. The isocyanate group-containing siloxane compound produced is represented by the following general formula (4): or the following general formula (5): wherein R1, R2, R3, R4, n, q, and a are as defined above.