查询词典 hydroxide

Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying.

以精制棉、氯乙酸、氢氧化钠和过氧化氢为原料，经过碱化、醚化、洗涤、干燥，制得羧甲基纤维素钠。

Using adipate as a starting material,a new curing agent,tetrahydroxyethyladipicdiamide was prepared by esterification and acylamide reaction with potassium hydroxide as a catalyst.

实验结果表明：在以氢氧化钾为催化剂，反应时间8h和反应温度80~90℃的优化条件下进行合成实验，产品的产率和羟值分别是96.7%和86.3 mg/g

Therefrom; heating said waste edible oil from which solid materials have been removed to a predetermined temperature, thereby removing moisture and materials of odor contained in the waste edible oil therefrom by evaporation; dissolving in alcohol a catalyst containing at least one type or more types of alkaline material selected from a group comprised of at least potassium hydroxide, potassium carbonate and potassium alcoholate, thereby preparing an alcoholic solution containing the catalyst; mixing said waste edible oil from which said solid materials, moisture and materials of odor have been removed with said alcoholic solution containing the catalyst and stirring the waste edible oil and alcoholic solution, thereby accelerating a catalytic reaction between the waste edible oil and the alcohol and obtaining a reaction product between the waste edible oil and the alcohol; separating said reaction product into a light solution and a heavy solution; mixing the light solution obtained in the separation step with a solid absorbent, thereby impurities such as residual catalyst, odor material, moisture contained in the light solution being absorbed by the solid absorbent; and separating and removing said solid absorbent from a mixture of the solid absorbent having absorbed the impurities and the light solution.

完成前述对象，根据这项发明的特点是获得的柴油燃油从废油脂透过几个步骤：去除固体材料包含在一个废油脂倾倒，从餐厅，食品厂，民政等因此；暖气说，废油脂从哪个固体材料已被调离到一个预定的温度，从而消除了水分和材料的气味，载于废油脂因此由蒸发；溶解在酒精的催化剂至少含有一种或更多类型的碱性材料选定由一组组成的至少氢氧化钾，碳酸钾和钾，醇，从而准备一醇溶液中含有催化剂；混合说，废油脂从哪个说，固体材料，含水率和材料的气味已被剔除与说，酒精性解决方案载有催化剂和搅拌废物食用油及含酒精的解决办法，从而加速催化反应之间的废油脂及酒精和获得反应产物之间的废油脂及酒精；分开说，反应产物成为一个轻型的解决方案和沉重的解决方案；混合轻解决方案，获得了在分离一步一个坚实的吸水性，从而杂质，如残留的催化剂，气味的物质，水分，载于轻解决方案，被吸收的固体吸收剂；分离和消除说，固体吸附剂从混合物对固体吸收剂吸收了杂质和轻便的解决办法。

As one of the main products of chorine alkali industry, sodium hydroxide is of exceedingly significance.

烧碱作为氯碱工业的主要产品之一，更有着极其重要的地位。

Miniaturization of hydroxide of alkaline-earth metal and solubility of salt, flame reaction of alkaline-earth metal ions, separation and identify of alkaline-earth metal ions was investigated.

系统探讨碱土金属氢氧化物及其盐的溶解性、碱土金属元素的焰色反应、碱土金属离子的分离和鉴定等微型化实验，并将其设计成新的微型实验应用于无机化学实验教学，效果良

Seven 1-iodoalkynes in yields of 78%~91% were synthesized by reaction of terminal alkyne s and cesium hydroxide in dry THF at room temperature for 3 h followed by treatment with iodine.

端炔与氢氧化铯在无水THF中于室温反应3h后与碘作用合成了7个炔基碘，收率78%~91%。

Sodium allylate was prepared from solid sodium hydroxide and allyl alcohol under mild conditions, and then the solid sodium allylate was reacted with epichlorohydrin in anhydrous system to produce allyl glycidyl ether in high yield and purity.

以固体NaOH和烯丙醇为原料在温和条件下制得烯丙醇钠，再以固体烯丙醇钠为原料，与环氧氯丙烷在无水条件下高产率地得到高纯度的烯丙基缩水甘油醚。

A new technology for preparation of high purity aluminium hydroxide has been introduced in this paper.

本文介绍了一种全新的高纯氢氧化铝制备技术。

Objective: To study the effects of alum, a lu minum chloride and aluminum hydroxide on aluminum contents in serum and brain of mice with high performance capillary.

中文摘要：目的：用高效毛细管电泳仪测定小鼠血清和脑组织中铝含量的方法，研究口服白矾、氢氧化铝和氯化铝对小鼠血清和脑组织中铝含量的影响。

Application,current usages and production of aluminum hydroxide filler,and inconsistency between supply and demand were discussed.

论述了氢氧化铝粉体填料的用途、应用现状及加工现状，该产品目前在供应与需求方面显现出的矛盾。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。