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- The paper studied the esterification process between ricinus oil and phosphoric anhydride as well as influences to the reaction by making up prescription of materials and temperature. 研究了以蓖麻油与磷酐为原料、合成蓖麻油磷酐酯中的酯化反应过程,考察了原料配比、反应温度对酯化反应的影响。
- phosphorous anhydride 亚磷酸酐,亚磷酐,三氧化二酸
- Fractions of the phosphor are easily lost. 部分磷光体容易丢失。
- Phosphor Bronze with tin plated or gold plated. 脚架:磷青铜电镀锡或是电镀金。
- Rapid Determination of Active Phosphoric Anhydride in Diammonium Phosphate by Gravimetric Method 磷酸二铵中有效磷的重量法快速测定
- Keywords monoalkyl phosphate ester;phosphoric anhydride;lauryl alcohol;synthesis process; 单烷基磷酸酯;五氧化二磷;月桂醇;合成工艺;
- In cathode ray tube display, the continuation of light emission from phosphor after excitation by the electron beam. 在阴极射线管显示器中，用电子束激励后荧光物质光发射的持续现象。
- The emission of light from a phosphor after removal of excitation. 余辉激振停止后的磷光物质所发出的光
- Influence of pH on Yield of DPT Prepared Without Acetic Anhydride. 非醋酐法合成DPT与pH值的关系
- Sows eat their young because they need the phosphorous. 大母猪吃仔猪,因为它们缺少磷质。
- Subject to control the chemicals acetic anhydride, ephedrine etc. . 受管制化学品乙酸酐、麻黄碱等.
- USES: As red phosphor for color Tv-sets and trichromatic lamp. 用途：作彩色电视和三基色稀土节能红灯等红色荧光粉。
- Hexahydro-4-methylphthalic anhydride, mixture of cis an... 询价 六氢-4-甲基邻苯二甲酸酐；
- Uses:As an activator of phosphor and dopant of garnet. 用途：用于荧光粉的活化剂和柘榴石的添加剂。
- The moon glows like phosphorous on the vagrant waters. 月亮像磷光在漂浮的水面上发光。
- Excellent condition, no dent, no scratch, no burn phosphor. 优秀情况，没有凹痕，没有抓痕，没有烧伤黄磷。
- Tb 3+ doped SrAl_2O_4:Eu 2+ ,Dy 3+ phosphor has been synthesized. 采用高温固相法在弱还原气氛下制备了掺入Tb3+的SrAl2O4:Eu2+,Dy3+磷光体。
- BaF2can improved greatly luminescence BaAl_12O_19:Mn phosphor. 通过比较得知BaF_2可以较大地增加其发光强度。
- Add the crystalline dihydrate(5g)to acetic anhydride(10??in a beaker. 向盛有10?蟠姿狒?的烧杯内加入5g二水合物结晶。
