查询词典 zinc sulfate

Results indicated that the cathodic current efficiency of the bath for zinc-iron alloy electroplating was 73%(that for zinc plating was l0.68%), and the throwing power was 100%(that for zinc-plating is 85%).

结果表明：合金镀液的阴极电流效率为73%，深镀能力为100%，合金层中含铁量为0.4%-0.8%；经钝化后，其盐雾试验出现白锈时间为240h（镀锌层为94~144h）。

Surface treatment: white zinc(CR+3/CR+6),color zinc(CR+3/CR+6), black, grey phosphorus, black phosphorus, black zinc, nickel plated, chrome plated, yellow brass, electrophoresis black, Dacro, hot dip galvanizing and other requirement from our clients.

表面处理有：白锌、彩锌、发黑、灰磷、黑磷、黑锌、镀镍、镀铬、黄铜、电泳黑、达克罗、蓝波克、军绿、热浸镀锌及可按客户指定要求生产。

In certain range,the bioenrichment of the mealworm larvae to Zinc in reference to the dosage added in the fodder is accorded with cubic curve relation:Y=181.2517+20.9314X-0.4099X2+ 0.0025X3. And the enrichment ability of T. molitor larvae in reference to the weight is also accorded with the cubic model:Y=35.8325+61.4155X-10.2980X2+0.4434X3. The enrichment of the larvae to Zinc can get to a high level in 2 to 3 days. This is anadvantage to numerous rearing of the mealworm. But we do not find a good rearing way to enhance the rate of bioenrichment to Zinc. And the further research about this is anticipated.

第二部分：采用锌作为添加元素，考查黄粉虫对微量元素的富集规律，结果表明：(1)黄粉虫虫体锌含量在一定范围内随锌添加量增加而呈三次曲线关系，符合三次曲线方程：Y=181.2517+20.9314X-0.4099X~2+0.0025X~3；(2)黄粉虫幼虫对锌富集能力随虫体大小变化而变化，与虫大小亦呈三次曲线关系；Y=35.8325+61.4155X-10.2980X~2+0.4434X~3；(3)黄粉虫虫体锌含量随着锌饲料添加而迅速上升，可在短期2～3天内达到较高水平，对于以黄粉虫为材料进行富锌保健食品生产有很大优越性；(4)本试验并未找到一种较好的锌添加方法来提高锌富集量，这方面的研究有待继续。

Calcium dimer acids and zinc dimer acids were prepared by double decomposition reaction,and their structures were identified by IR.Their effects on heat stability of PVC were tested by way of Congo Red Method and Heating Method.Calcium dimmer acids and zinc dimmer acids were compared with traditional calcium stearate and zinc stearate.

通过复分解法制备了二聚酸钙和二聚酸锌，并通过红外检测证明了其结构；采用刚果红法、热烘法研究了二聚酸钙和二聚酸锌对PVC的热稳定作用，并与传统的硬脂酸钙、硬脂酸锌热稳定剂作了比较。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

In order to solve the problem of low quality of potassium sulfate produced from potassium chloride and ammonium sulfate,refining preparation of potassium sulphate is studied.

为了解决氯化钾—硫酸铵法生产的硫酸钾产品纯度低的问题，对硫酸钾精制过程进行了研究。

Potassium sulfate was prepared from potassium chloride and ammonium sulfate by addition of methanol.

以氯化钾和硫酸铵为原料，以甲醇为添加溶剂制备硫酸钾。

The company spirit of "lowest price, best quality, best service" business principles, the industry enjoyed a high reputation at the same time the Company also sells feed-grade ferrous sulfate, trisodium phosphate, barium hydroxide, barium sulfate precipitation and other inorganic products, is the number of brand-name products in central China Chemical Agents.

公司本着"价格最低、质量最好、服务最棒"的经营原则，在业界享有很高的声誉，同时本公司还销售饲料级硫酸亚铁、磷酸三钠、氢氧化钡、沉淀硫酸钡等无机产品，是全国多家名牌化工产品的华中地区代理。

From soil analysis we could seen that orchard soil salt composing types of the experiment area was Chloride-Soda-Sulfate in the 0~20 and 40~60 cm soil layer depth, the 20~40 cm soil layer was Soda-Chloride- Sulfate. Soil pH was less 8.5, and all soil surface layer salt contents less 0.20%, ESP was less 10, HCO3(superscript -)/Cl(superscript -+SO4(superscript 2-) was less 0.5. There were a little salt and basification phenomena with soil of growth better orchards compare.

从土壤的分析结果看，项目区果园土壤盐分组成类型为：0~20 cm和40~60 cm土层为氯化物－苏打－硫酸盐型；20~40 cm土层为苏打－氯化物－硫酸盐型。pH.5，土壤表层盐分的含量均小于0.20%，ESP值小于10，HCO3/Cl(上标-+SO4(上标 2-)。5，与生长良好的果园区土壤相比有轻微的盐化和碱化现象。

Based on groups of single factor experiments, the yield could reached to 88.8% with the conditions: sodamide: cedrol :dimethyl sulfate = 1.6:1:0.9, refluxed 2h in first step reaction, and reacted at room temperature 1h after instillation of dimethyl sulfate, followed refluxed 1h in the second steps.

通过多组单因素实验发现氨基钠：柏木脑：硫酸二甲酯的摩尔比为1.6：1：0.9，第一步反应条件控制在回流2h，第二步反应先室温（25℃）滴加硫酸二甲酯后反应1h，再回流反应1h，得率可达88.8%。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。