溶剂

Solvent remains to 3 chloric firedamp and alcohol can be departed and detect in result sample.

结果样品中残留溶剂三氯甲烷和乙醇能被分离和检测。

Endures solvent BW- I type heavy nitrogen sensitization glue fitting be used for electron, Appearance, Porcelain enamel, Glass, Leather wait for oil dissolve sex print materical, Endures water property BW- II type fitting is used for cotton goods, Sheet fiscal stamp wait for water solubility printing materical, BW- III type fitting be used for china and glass applique silk screen print usage.

耐溶剂BW-I型重氮感光胶适用于电子、仪表、搪瓷、玻璃、皮革等油溶性印料，耐水性BW-II型适用于棉织品、纸张印花等水溶性印料，BW-III型适用于陶瓷和玻璃贴花丝网印刷使用。

Nitrocellulose chips is small white flake, in organic solvent such as ketone, ester, alcohol ether etc, with density 1.34g/m3 and explosion point 1570℃.

白色小薄片状，溶于苯、甲苯、酮及酯类有机溶剂，密度约为1.34 g／cm。，爆发点为1 57.C。

Becausethe ginger flavine and its the synonym have many kinds of pharmacologyactiveness, at present, conducted the research take this kind ofcompound as the forerunner which the structure optimized to cause inthe world scope chemist and the medicine scientist's widespreadattention, take the ginger flavine as the raw material, first had thefunction production corresponding sodium salt in the organic solventby NaOH or NaOEt and a-H, then and 卤代烃carried on the substitution reaction, the response condition which theresearch optimized, and grew this derivative monocrystal with thesolution law.

由于姜黄素及其类似物所具有的多种药理活性，目前，以该类化合物为先导进行结构优化的研究引起了世界范围内的化学家和药物学家的广泛关注，以姜黄素为原料，先在有机溶剂中以NaOH或NaOEt与a-H发生作用生成相应钠盐，再和卤代烃进行取代反应，研究优化的反应条件，并用溶液法生长该衍生物单晶体。

Should have good flexility and friction and heat-resistant, resistant to solvents, processing, and so on.

耐抗性。应具有良好的柔韧性以及耐摩擦、耐热、耐溶剂、耐加工等性能。

Recently chitin and chitosan have become of great interest not only as biopolymers, but also as a new functional materials of high potential in various fields ranging from a simple floccule for waste water treatment to medical materials such as for wound healing and prevention of infection.

甲壳素是一种天然多糖，脱除乙酰基的产物是壳聚糖，作为新型功能生物材料，它们已在水处理、日用化学品、生物工程和医药等领域得到了应用，但它们不溶于一般的有机溶剂，从而限制了其广泛应用。

The experiments showed that the starch was rich in the extracts because the Radix puerariae is a Chinese herbal with a lot of starch. The starch would be soluble and produced a floccule when water is used as solvent and the extracting system is at high temperature.

在实验中观测到，煎煮淀粉含量高的药材时，水作溶剂可溶解大量淀粉，溶出的淀粉在加热煎煮时与水生成胶体，这些胶体会严重吸附萃取的有效成分。

Its flow components are made of fluoric plastic and high-purity industrial porcelain for sound anti-corrosion and sealing Performance.

其过流部件采用氟塑料及高纯度工业陶瓷制成，具有优异的现耐腐性及密封性，因此广泛用于化工、医药、铝箔、制酸、涂装、有色金属等行业及易燃易爆、易挥发、有毒、有机溶剂和贵重液体的输送。

Reaction conditions are studied, and the result shows that it is better to adopt mercuric oxide or mercuric fluoride as fluorination catalyst with reaction temperature -20~-10℃.

结果表明，采用氧化汞或氟化汞作氟化催化剂、氟化氢作溶剂较好，适宜的反应温度为－20~-10℃，较长的反应时间(48 h)和增加氟化氢和催化剂的量有利于氟化。2-氯－5-三氯甲基吡啶的转化率和选择率均可达到97%以上。

According to the problem of the long processing time and testing cycle for food measurement, the feasibility of using one microwave digestion solution to investigate seven elements in food was discussed.

摘 要：针对食品检测前处理时间和检测周期过长的难题，用硝酸及双氧水作为消解溶剂，在设定的微波消解条件下，可以将样品消解完全，消解液中加入硫脲和L盐酸，不需任何处理可直接进行砷等7种元素的测定。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。