无水乙醇

Ethanol is a product of anaerobic respiration in plants, and waterlogged roots suffer from a shortage of oxygen.

乙醇是植物无氧呼吸的产物，水淹的植物根系受到短时间的缺氧。

Specificity:Colourless or white crystaIline granuIe or crystaIline powder odourless;taste,saIty and acid;solubIe in water,diIffIicuIity in ethanoI;sIightIy deliquescence in moist air,PH7.6－8.6 in 5％ agueous soIution,when heated to 150℃,it may lose crystal water.

性能：无色或白色结晶颗粒或结晶性粉末，无臭，味凉，溶于水，难溶于乙醇，在潮湿空气中微有潮解性。5％水溶液的PH为7.6—8.6，150℃失去结晶水。

In this thesis, investigations focused on heteropoly acids-catalyzed C-C and C-N bond formation reactions and the synthesis of xanthenediones and acridinediones under thermal conditions are described.1.12-Phosphotungstic acid has been used as an efficient,eco-friendly,and air- and moisture-stable catalyst to promote the direct dehydrative substitution of the hydroxy group of benzylic and allylic alcohols with variousβ-dicarbonyl compounds.

本篇论文主要描述了杂多酸催化下的C-C和C-N键的生成，以及无溶剂直接加热下合成十氢氧杂蒽二酮和9-芳基十氢吖啶二酮。主要内容如下：1。在磷钨酸催化下，1，3-二羰基化合物与醇能够顺利偶合，脱除一分子的水，生成烷基化的1，3-二羰基化合物。反应在甲苯中进行时，二芳基甲醇能与各类1，3-二羰基化合物反应，成率很高；但对于1-苯乙醇，只能得到很低的产率。

Characteristics: Sildenafil Mesylate is the derivant of sildenafil critate, white or off-white crystal powder, odorless, bitter, melt in water and ethanol

甲磺酸盐西地那非是枸橼酸西地那非的衍生物，本品为白色或类白色结晶性粉末，无嗅、味涩苦、溶于水和乙醇。

It looks like white powder,no smelling ,can not be dissolved in the water but it can be dissolved in the ethano and lipin.

其外观呈白色粉末状，无嗅无味，不溶于水，但可溶于乙醇和油脂。

Properties : White crystallization or powder , proportion 1.735 , melting point is 287 ℃, apt to dissolve in water , ethanol and propanone , aqueous solution is neutral , turn into the blood red sulphur cyaniding iron with molysite , reactionless with inferior molysite, salt function turns into dark blue sulphur cobalt cyanide, turn into white sulphur silver precipitating or black sulphur copper cyanide cyanide to precipitate with the silver salt or copper salt function with cobalt.

白色结晶或粉末，比重 1.735 ，熔点 28 7 ℃，易溶于水、乙醇和丙酮，水溶液呈中性，与铁盐生成血红色的硫氰化铁，与亚铁盐则无反应，与钴盐作用生成深蓝色的硫氰化钴，与银盐或铜盐作用生成白色的硫氰化银沉淀或黑色的硫氰化铜沉淀。

A new quasi-oligosaccharide alpha-amylase inhibitor as alcaftadine compound is represented as the formula at right, wherein m is integer of 0-7, n is integer of 1-4 and q is integer of 0-3, The mixture and monomer of the alcaftadine compound are white amorphous powder which dissolves in water and DMSO easily, dissolves in methanol, alcohol and acetone slightly and not dissolves in other organic solvents.

一类新的拟低聚糖类α-淀粉酶抑制剂，阿卡他定系列化合物，具有如右通式的结构，其中，m为0～7的整数，n为1～4的整数，q为0～3的整数。所述通式所示的阿卡他定系列化合物的混合物和单体均为白色无定形粉末，易溶于水和DMSO，微溶于甲醇、乙醇和丙酮，不溶于其它有机溶剂。

NJWGY3665 bacterial strain is inoculated in a glucose nutrient culture medium to carry out the slant culture, the culture temperature is 28 to 37 DEG C and the culture time is 2 to 6 days;(2) seed culture: a spore which is cultured on a slant is produced into a single-spore suspension by using sterile water, which is also inoculated in a seed culture medium for culture, the temperature is 28 to 32 DEG C, the rotational speed is 200rpm and the culture lasts for 2 to 6 days;(3) fermentation culture: the seed liquid is inoculated in a fermentation culture medium for culture, the temperature is controlled at 28 to 37 DEG C, the pH is controlled at 6.0 to 9.0, the rotational speed is 180 to 220rpm, the fermentation lasts for 5 to 9 days, so as to obtain the Streptomyces sp., methanol or ethanol is used for the extraction and separation of mycelium through the method of centrifugal separation, then the resin method is adopted for carrying out refining, so as to obtain the peptide antibiotics enramycin.

NJWGY3665菌种接到葡萄糖营养培养基中，进行斜面培养，培养温度28-37℃，培养时间2-6天；(2)种子培养：用无菌水将斜面上培养的孢子制成单孢子悬液，并接种到种子培养基中培养，温度为28～32℃，转速为200rpm，培养2-6天；(3)发酵培养：将种子液接种到发酵培养基中培养，温度控制在28-37℃，pH控制在6.0-9.0，转速180-220rpm，发酵5-9天，得到链霉菌，采用离心分离的方法将菌丝体用甲醇或乙醇进行提取分离，再采用树脂方法进行精制，获得多肽类抗生素安来霉素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。