the product name

zno

product name in english

any zinc oxide; any zinc white,

product alias

zinc oxide powder; chinese white

molecular formula

zno

product use

used as a paint and rubber filler

cas no.

1314-13-2

toxicity of protection

poisoning there will be a poor appetite, polydipsia, fatigue, chest tightness, and tenderness, drowsiness, dry cough, and increased body temperature, pupil dilation, conjunctival hyperemia and pharyngeal and face, glucosuria, also sometimes hepatomegaly. followed by pulmonary interstitial edema, alveolar epithelium. poisoning can be inhaled alkaline substance, intravenous glucose (20 ml of 40% solution) and 300 mg of ascorbic acid. according to the symptoms of arm. maximum allowable concentration of 0.5 mg/m3 in the air. operations should wear gas masks, protective glasses, wear overalls. hot water bath after work. attention should be paid to prevent vapor and aerosol formation and discharge to the working place is in the air. dustproof ventilation should be paid attention to.

packaging and storage and transportation

in 2 ~ 3 layers of 80 grams of lined kraft paper or pe plastic woven bag packaging, bags of 25 kg net each, 30 kg. stored in ventilated, cool, dry warehouse. packing should be sealed tightly to prevent breakage. heat protection, waterproof, moistureproof. and pay attention with strong acid and the consumption of raw materials for sequestration. fire, water, foam fire extinguisher or other fire extinguishing device saves.

physical and chemical properties

white hexagonal system crystallization or powder. tasteless, nontoxic, fine quality. relative density of 5.606. refractive index is 2.008 ~ 2.029. melting point is 1975 ℃. soluble in acid, sodium hydroxide, ammonium chloride, insoluble in water, ethanol and ammonia. both sexes oxide. absorb carbon dioxide and water in the air generated carbonic acid zinc yellow. heat the time-varying huang, recover white after cooling. not through the ultraviolet (uv), unchanged in hydrogen sulfide black.

the quality standard

the national standard gb 3494-83; the national standard gb/t 3185-92

the molecular weight

81.37

structural formula

rate of consumption

wet indirect method zinc hydrogen carbonate method, direct method zinc oxide method

zinc ingot (99.9% zinc) 0.844

1.178 95% crude zinc oxide (zno)

1.271 hydrogen zno/zinc (oh) 2]

zinc ash (converted into pure zinc) 0.9

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the indirect method in japan

zinc ingot (99.9% zinc) 0.950

氧 化 锌

外观及包装：
　　有苦味的白色至灰白色粉末，内用塑料袋，外用双层防水压模编织袋，每袋25公斤。

主要用途：
　　橡胶制品、涂料、医药、印染、颜料、化妆品、油漆、玻璃制品、瓷釉、化学试剂、、烟火等。

主要特点：
　　氧化锌不溶于水，溶于盐酸、硫酸、氢氧化钠和氯化铵溶液，比重5.606，熔点1975摄氏度。

使用说明：
氧化锌使用应防止受潮，不与强酸和碱物存入，不得与食用原料混放，失火时可用水浇救。氧化锌采用直接法和间接法生产，根据不同用途选择产品。

其它说明：
　　本产品根据市场行情，实行市场浮动价。

氧化锌是一种白色或浅黄色粉末，无毒、无臭。它的密度为5.6/立方米，分子量为81.4，升华温度为1800摄氏度。不溶于水，能溶于强酸和强碱。

   氧化锌的制备方法有三种，即间接法（法国法）、直接法（美国法）和湿化学法。间接法以金属锌锭为原料，把锌锭熔入蒸发坩锅中，经灼热气化通过空气氧化、冷却、捕集得到成品。直接法以含锌的氧化矿为原料，加入煤粉作还原剂，在高温下直接燃烧产生的锌蒸汽与热空气接触氧化生成氧化锌、冷却、捕集得到成品。湿化学法以含锌物料为原料，把原料溶解在硫酸中，经交货获得精制硫酸锌液，加入沉淀剂获得碳酸锌，Zui后焙解得到氧化锌。

   橡胶和轮胎工业是氧化锌的Zui大用户，在橡胶的硫化过程中，能增加橡胶的物理性能。氧化锌也用于油漆、油墨、漆布的着色。它还可以用作润滑油添加剂、水处理和催化剂等化学行业。氧化锌是采用湿化学生产的超细活性氧化锌。它具有大的表面积，能够很好的分散在橡胶中，有害杂质含量低，在橡胶中用量公主间接法氧化锌的50-70%，它的性能指标如下所示：

appearance and packing:

has a bitter taste of white to gray powder, plastic bags inside, external use double deck waterproof die woven bags, each bag is 25 kg.

main application:

rubber product, paint, medicine, printing and dyeing, paint, cosmetics, senior paint, glass, enamel, chemical reagents, war industry, fireworks, etc.

main features:

zinc oxide is not soluble in water, soluble in hydrochloric acid, sulfuric acid, sodium hydroxide and ammonium chloride solution, specific gravity 5.606, melting point 1975 degrees celsius.

directions for use:

zinc oxide used should prevent be affected with damp be affected with damp, not with acid and alkali content, not with the consumption of raw materials mixed with, when fire with water saving. zinc oxide by direct method and indirect method of production, choose products according to different uses.

other details:

this product according to the market, implement market fudongjia.

zno is a kind of white or light yellow powder, non-toxic, odourless. its density is 5.6 / cubic meter, the molecular weight of 81.4, sublimation temperature is 1800 degrees celsius. insoluble in water, soluble in strong acid and strong alkali.

there are three kinds of preparation methods of zno, the indirect method (france), the direct method (the method) and wet chemical method. indirect method for metal zinc ingot as raw material, melt into the evaporation in the crucible of the zinc ingots by heat gasification of finished product is obtained by air oxidation, cooling and trapping. direct method with zinc oxide ore as raw material, add pulverized coal as reductant, direct combustion at high temperature of zinc vapor in contact with the hot air generated oxide zinc oxide, cooling and trapping for finished products. wet chemical method in zinc material as raw material, the raw material dissolved in acid, the refined zinc sulfate solution, obtained with delivery to join precipitant for zinc carbonate, the roasting zinc oxide solution.

rubber and tire industry is the biggest user of zinc oxide, in the process of rubber vulcanization, can increase the physical properties of rubber. zinc oxide is used in paint, printing ink, varnished cloth color. it can also be used as a chemical industry such as lubricating oil additives, water treatment and catalyst. zinc oxide is produced by wet chemical xihuoxing zinc oxide. it has large surface area, it can well disperse in rubber, low content of harmful impurities in rubber princess dosage of 50-70% of the indirect method zinc oxide, its performance indicators as shown below:

physical properties:

appearance: yellowish superfine powder, spherical particles, the average particle size of 30 nm. 0.4 to 0.5 g/ml.

apparent density:

specific surface area (bet) : 40-60 square metres per gram.

sieve sieve residue (44 microns) : less than 0.10%.

chemical analysis:

zno: 95-98

burns weightlessness: less than 3%

moisture: less than 1%

cuo (cu) is less than 0.0005

mno (mn) is less than 0.003

pbo (pb) is less than 0.0001 (xrf) xa

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