氯化亚锡

In the presence of the combination of sulphuric and phosphoric acid, with sodium diphenylamine sulfonate as the indicator, standard solution of potassium dichromate was used to titrate total iron value.

试样以盐酸溶解后，在酸性介质中，先以氯化亚锡将三价铁大部分还原为二价，然后在钨酸钠指示下，再以三氯化钛将剩余的三价铁还原为二价，过量的三氯化钛以重铬酸钾氧化消除干扰，在硫磷混合酸存在下，以二苯胺磺酸钠为指示剂，用重铬酸钾标准溶液滴定全铁量。

The flotation behaviors of osmium from stannous chloride-cetyltrimetheylammonium bromide- system in the presence of sodium chloride were studied.

研究了氯化钠存在下氯化亚锡-十六烷基三甲基氯化铵体系对Os-三氯锡酸络阴离子的浮选行为。

The synthesis methods of ethyl lactate catalyzed by P-toluene sulfonic acid, cationic exchange resin, ferric chloride hexahydrate, stannous chloride, Aluminium chloride, modified zirconium oxid, ferric-potassium vitriol, ammonium ferric sulfate dodecahydrate, rave earth sulfate, sodium bisulfate monohydrate, complex solid superacid, heteropoly acid, molecular sieve, ionic liquid and lipase etal.

评述了对甲苯磺酸，阳离子交换树脂，六水三氧化铁，氯化亚锡，三氯化铭，改性氧化锆，铁钾矾，十二水合硫酸铁铵，稀土硫酸盐，一水硫酸氢钠，复合固体超强酸，杂多酸，分子筛，离子液体和脂肪酶等催化剂催化合成乳酸乙酯的合成方法。

Part of test solution is abstracted and in hydrochloric acid, W is reduced to quintavalent W and producing yellow complex compound with patassium rhodanate by dual reducting agents of tin chloride and titanium oxide.

吸取部分试液，在盐酸介质中，以氯化亚锡—三氯化钛双还原剂将钨原成五价并与硫氰酸钾生成黄色络合物。

METHODS The formulation of tetrofosmin and stannous chloride for injection was optimized using orthogonal design with radiochemical purity.

方法以放射化学纯度为指标，选取替曲膦用量、氯化亚锡用量、制剂pH值和氮气保护时间四个因素，每个因素选取三个水平，选用L9(34)表进行正交实验，对注射用亚锡替曲膦的处方进行筛选。

Chemical raw materials: include a variety of plating materials and metal surface treatment agent: sodium such as tin, stannous chloride, pyrophosphate Asian tin, copper sulfate, nickel acetate, copper acetate, nickel fluoride, cobalt sulphate, acetic acid cobalt, hydrofluoric acid, anion exchange resin, cation exchange resin, scale inhibitors, cleaning agents, detergents,the phosphating agent, plate washer water, with the exception of Prince agents, rust removal agent, the American Iron and Steel room temperature blackening agent, on behalf of behalf of the black-white (open cylinder agents, supplements), and alloys such as gun color..

二。化工原料：包括各种电镀原料及金属表面处理剂：如锡酸钠、氯化亚锡、焦磷酸亚锡、硫酸铜、醋酸镍、醋酸铜、氟化镍、硫酸钴、醋酸钴、氢氟酸、阴离子交换树脂、阳离子交换树脂、阻垢剂、清灰剂、除垢剂、创辉的磷化剂、洗板水、除腊剂、除油除锈剂、美国的钢铁常温发黑剂、代白代黑、枪色黑合金等。

The results showed 3 types of aluminum compound prepared in this paper all had good poison protection effectiveness on such impurities as stannous chloride,lead oxide,sodium hydrogen sulfate,and so on.Moreover,the mechanism of the poison of catalyst was also discussed.

结果表明，合成的3种防中毒剂即防－1、防－2(主要成分为乙酰丙酮合铝)及防－3(主要成分为二乙酰丙酮基异丙氧基铝)对二月桂酸二丁基锡、氯化亚锡、二正丁胺、硫脲、氧化铅及硫酸氢钠等杂质均有较好的防中毒作用；不同防中毒剂对不同杂质的防中毒作用有一定的选择性。

They are hydrogen peroxide, ammonium persulfate, sodium persulfate, chlorinated polypropylene, chloridized EVA, garox mek, carbon dioxide, hydrogen, sodium carboxymethyl cellulose, carboxymethyl amylum sodium, feed additive, auric salt and silver salt series, tin salt series, tin dichloride, silver nitrate, fireworks raw materials, spheroid form nickel hydroxide, refined sulfuric acid, battery sulfuric acid, ultramicro fine powder, compound fertilizer, 40% multiple sulfur suspending agent, 40% sulfur-tricyclazole suspending agent, 40% sulfur-multiple-trideflocculant, 20% pemiro-dichlor suspending agent, high panniculus adiposus and so on.

主要产品有：过氧化氢、过硫酸铵、过硫酸钠、氯化聚丙烯、氯化EVA 、过氧化甲乙酮、二氧化碳、氢气、羧甲基纤维素钠、羧甲基淀粉钠、饲料添加剂、金、银盐系列、锡盐系列、氯化亚锡、硝酸银、烟花原料、球形氢氧化镍、精制硫酸、电池硫酸、超微细粉体、复合肥、40%多硫悬浮剂、40%硫·三环唑悬浮剂、40%硫·多·三悬浮剂、20%吡嘧·二氯悬浮剂、高脂膜等10个系列百多个品种、规格产品。

Companies to provide long-term grade of phosphate rock, phosphoric acid, sodium hexametaphosphate, sodium tripolyphosphate, sodium fluorosilicate, sodium fluoride, SnO, tin sodium, stannous chloride, chlorine dioxide tin, etc. more than twenty kinds of products.

公司长年提供各种品级的磷矿、磷酸、六偏磷酸钠，三聚磷酸钠，氟硅酸钠、氟化钠，氧化亚锡，锡酸钠、氯化亚锡、二氧化锡等二十余种产品。

A large number of companies are producing high-quality reagent products, such as chloroform, ethanol, ammonium, potassium periodate, iodine, potassium iodide, stannous chloride, tin tablets octanol, hydrochloric acid and so on.

公司现生产大批优质试剂产品，如氯仿、无水乙醇、钼酸铵、高碘酸钾、碘、碘化钾、氯化亚锡、锡粒、正辛醇、盐酸等。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。