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- pentaerythritol phthalate 季戊四醇邻苯二甲酸酯
- Dibutyl phthalate is commonly employed as such a plasticizer. 酞酸二丁酯一般用来作为这类增塑剂。
- Conclusion Dibutyl Phthalate is a slow toxicity substance. 结论邻苯二甲酸二辛酯对人体有慢性毒性。
- Magnesium phthalate dihydrate was synthesized by rheological phase reaction. 用流变相反应法合成了二水邻苯二甲酸镁。
- In the first place,the uses and character of safety of phthalate are described. 首先说明了邻苯二甲酸脂的用途及安全性。
- Phthalate is a chemical used to soften plastics and make it less brittle. 邻苯二甲酸是一种用于软化塑料,降低脆性的化学剂。
- The yieldsof pentaerythritol and dipentaerythritol were above 20percent under the optimum reaction parame... 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- Novelty intumescent flame retardant(IFR) was made from phosphoric acid,pentaerythritol(PER) and melamine. 使用磷酸、季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂。
- Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid. 由季戊醇、氢溴酸制备了二溴新戊二醇。
- The yieldsof pentaerythritol and dipentaerythritol were above 20 percent under the optimum reaction parameters. 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- The polyester in these compositions is a 50% solution of a maleic acid-prophlene glycol condensate in diallyl phthalate. 在这些配方中的聚酯是马来酸--丙二醇缩合物在酞酸二烯丙酯中的50%25溶液。
- In the production of polyurethane paint,pentaerythritol is em ployed in the place of alkyd resin . 介绍以季戊四醇代甘油制聚氨酯漆醇酸组份的配方、工艺及树脂性能。
- An economical and practical detector in pentaerythritol production, its principle and application are introduced. 介绍季戊四醇生产中比较经济实用的一种检测装置,对其原理和实际应用加以论述。
- Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions. 例如碳酸钠和邻苯二酸氢钾,分别用来标定酸和碱溶液。
- The easy procedure provided a neat environment-friendly synthetic method for pentaerythritol diacetals in high yields and the catalyst was reusable. 该方法操作简便,收率高,催化剂可重复使用,是一种环境友好型催化反应。
- Preconcentration of phthalate esters in environmental aquatic samples by n-octadecyl-bonded membrane extraction. 环境水样中邻苯二甲酸酯固相膜萃取预富集方法。
- But the waterproof is in high to low order as: pentaerythritol phosphate> aminated pentaerythritol phosphate> ammonium monoacid phosphate. 耐水阻燃性作用大小为:磷酸季戊四醇缩合物>磷酸季戊四醇缩合物的铵盐>磷酸氢二铵。
- Dioctyl phthalate was synthesized using di n octyl tin oxide as an aprotic acid catalyst. 用氧化二辛基锡催化合成邻苯二甲酸二辛酯。
- Dibenzalpenlpentaerythritol was directly synthesized from benzaldehyde and pentaerythritol under microwave irradiation with sulfates used as catalyst. 在微波辐射下用硫酸盐催化合成了标题化合物。
- Process for synthesizing dimethyl phthalate(DMP) for phthalic anhydride and methanol has developed. 研究以苯酐、甲醇为原料合成邻苯二甲酸二甲酯的方法。