硫酸鋅性能：無色晶體,小針狀或粒狀晶形粉未,無臭,在空氣中會風(fēng)化。溶液對石蕊呈酸性比重1.957(25/4℃),熔點100℃在280℃失去7H2O,溶于水及甘油,不溶于酒精,毒性底。 用途：食品補充劑,動物飼料,媒染劑,木材防腐劑,分析試劑。 包裝：內(nèi)襯聚乙烯塑料袋，外套塑料編織袋，每袋25Kg。 硫酸鋅、性能：無色晶體,小針狀或粒狀晶形粉末,無臭,在空氣中會風(fēng)化。溶液對石蕊呈酸性比重1.957(25/4℃),熔點100℃在280℃失去7H2O,溶于水及甘油,不溶于酒精,毒性底。 蘋果公司今天在紐約股市收盤后發(fā)布了2016財年第三財季的財報，營收和利潤不出意外的下滑，不過因為總營收和每股收益超過了市場預(yù)期，蘋果股票在目前的盤后交易中上漲了7.21%，重回100美元以上。 質(zhì)量指標SpecificationGB25579-2010FCC,1996含量w/% ZnSO4.H2OContentZnSO4.H2O99.0-100.598.0-100.5ZnSO4.7H2OZnSO4.7H2O99.0-108.799.0-108.7砷(As),mg/kg ≤As0.0003——堿金屬和堿土金屬鹽w/%≤Alkali metal0.500.5酸度PH通過試驗正常硒(Se),mg/kg ≤Se0.0030.003汞(Hg),mg/kg ≤Hg0.00010.0005鉛(Pb),mg/kg ≤Pb0.00040.001鎘(Cd),mg/kg ≤Cd0.00020.0005 1、ChemicalName: Zinc sulfate 2、Molecular Formula :ZnSO4.H2O, ZnSO4.7H2O 3、MolecularWeight:179.48(Monohydrate), 287.54(Heptahydrate) 4、CAS:7446-19-7（H2O）；7446-20-0 (7H2O) 5、Character:It iscolorless or white crystalline powder,odorlessness. Efflorescence in air. Acid hydrometer is 1.957(25/4℃) to litmus.Melting point is 100℃. It’s soluble in water and glycerol, insoluble in ethanol and light toxicity, lose crystal water in 280℃. 6、Usage:It is used as food additives, animal feed, printing and dyeing, timber preservative.Used as analytical reagent. 7、Packing:It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg. 8、Storage and Transport:It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances. 七水硫酸鋅 分子式：ZnSO4.7H2O CAS編碼：7446-20-0 性質(zhì)：白色顆?；蚍勰痪w，有收斂性，在干空氣中會粉化。加熱到3 0 ℃失去一分子結(jié)晶水，100 ℃時失去六分子結(jié)晶水，280 ℃時失去七分子結(jié)晶水，767 ℃時分解成ZnO 和SO3。能溶于水，微溶于乙醇和甘油。需要密閉保存。 用途：主要用作制造鋅鋇和其他鋅鹽的原料，也是粘膠纖維和維尼綸纖維等的重要輔助原料，還用作印染媒染劑、木材與皮革保存劑、骨膠澄清及保存劑、醫(yī)藥催吐劑和殺真菌劑，農(nóng)業(yè)上用作微量元素肥料等。 包裝：25Kg/袋或50Kg/袋，內(nèi)塑外編雙層包裝。 項目指標優(yōu)等品一等品合格品主含量以（Zn ）計的質(zhì)量分數(shù)，% ≥22.5122.0620.92以（ZnSO4.7H2O）計的質(zhì)量分數(shù)，% ≥99.097.092.0不溶物的質(zhì)量分數(shù)，% ≤0.020.050.10pH 值（50/g 溶液）≥3.03.0—氯化物（以CI 計）的質(zhì)量分數(shù)，% ≤0.200.60—鉛（Pb ）的質(zhì)量分數(shù)，% ≤0.0010.010.01鐵（Fe ）的質(zhì)量分數(shù)，% ≤0.0030.020.06錳（Mn ）的質(zhì)量分數(shù)，% ≤0.0050.10—鎘（Cd ）的質(zhì)量分數(shù)，% ≤0.0010.01—

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