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七水硫酸鎂

一、化學名：硫酸鎂

二、分子式：七水：MgSO4·7H2O；干燥品：MgSO4·nH2O

三、分子量：246.47(七水）

四、CAS：七水：10034-99-8；干燥品：7487-88-9

五、性狀：七水物結晶為無色柱狀或針狀晶體，干燥品為白色結晶性粉末或粉末。無臭，均有咸味和苦味。易溶于水（119.8%，20℃），緩慢溶于甘油，微溶于乙醇，水溶液呈中性。

    六、用途：營養(yǎng)強化劑（鎂強化劑）、固化劑、增味劑、加工助劑。釀造用添加劑，補充釀造用水的鎂，作為發(fā)酵時的營養(yǎng)源，提高發(fā)酵能力,改善合成清酒的風味（0.002%）,調(diào)整水的硬度。

七、包裝：內(nèi)襯聚乙烯塑料袋，外套復合塑料編織袋包裝，每袋凈重25kg。

八、貯存與運輸：本品應貯存在干燥通風清潔的庫房中，裝載運輸時要輕裝輕放，防止包裝破損，防止受潮、受熱，運輸過程中防止雨淋受潮，應與有毒物品隔離。

質(zhì)量指標SpecificationGB29207-2012FCC VII
含量（MgSO4，灼燒干基），w/%   ≥Content( As MgSO4,After Ignition ), w/% ≥99.099.5
重金屬（以Pb計)，mg/kg       ≤Heavy Metals(As Pb),mg/kg            ≤10———
鉛 (Pb)，mg/kg               ≤Lead(Pb),mg/kg                      ≤24
硒 (Se)，mg/kg               ≤Selenium(Se),mg/kg                  ≤3030
pH（50g/L溶液，25℃）pH (50g/L,25℃)5.5-7.5———
氯化物（以Cl計），w/%          ≤Chloride(Cl),w/%                     ≤0.03———
砷 (As)，mg/kg               ≤Arsenic(As),mg/kg                   ≤3———
鐵 (Fe)，mg/kg               ≤Iron(Fe),mg/kg                     ≤20———
灼燒減量，w%七水合物Loss on Ignition (Heptahydrate), w%40.0-52.040.0-52.0
干燥品Loss on Ignition(Dried),w%22.0-32.022.0-28.0
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1、Chemical Name: Magnesium Sulfate

2、Molecular Formula: MgSO4·7H2O,Dry:MgSO4·nH2O

3、Molecular Weight: 246.47(Heptahydrate）

4、CAS: 10034-99-8（Heptahydrate），7487-88-9（Anhydrous）

5、Character: Heptahydrate is colorless prismatic or needle-shaped crystal. Anhydrous is white crystalline powder or powder. It’s odorless, tastes bitter and salty. It is freely soluble in water (119.8%, 20℃) and glycerin，slightly soluble in ethanol. The aqueous solution is neutral.

6、Usage: In food industry, it is used as nutritional fortifier (Magnesium fortifier), solidification, flavor agent，process aid and brew additive. It is used as nutritional source to improve ferment and the taste of synthesizes saka（0.002%）. It also could modify water hardness.

7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as 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 from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.