厂家直销食品级硫酸亚铁七水

一、化学名：硫酸亚铁
二、分子式：FeSO₄·7H₂O  FeSO₄·nH₂O  
三、分子量：278.02 (七水物)   
四、CAS：7782-63-0（七水物）  7720-78-7（干燥品）
五、性能：暗淡蓝绿单斜晶系晶体性粉末或颗粒。无臭，具有咸的收敛味。在干燥空气中会风化，在潮湿空气中易氧化成棕黄色碱式硫酸铁。易溶于水，不溶于乙醇。
六、用途：营养增补剂（铁质强化剂）；果蔬发色剂。
七、包装：内衬聚乙烯塑料袋，外套塑料编织袋，每袋25千克。
八、贮存与运输：应贮在干燥、通风清洁的库房中，轻装轻放，防止受潮、受热，运输过程中防止雨淋受潮，应与有毒物品隔离堆放。
 

质量指标	Specification	七水物（FeSO4·7H2O）		干燥品（以FeSO4计）
		GB 29211-2012	FCC V	GB 29211-2012	FCC V
含量w/ %	Content	99.5-104.5	99.5-104.5	86.0-89.0	86.0-89.0
铅（Pb）,w/%  ≤	Lead	0.0002	0.0002	0.0002	0.0002
砷 （As）,w/% ≤	Arsenic	0.0003	0.0003	0.0003	0.0003
汞 （Hg）,w/% ≤	Mercury	0.0001	0.0001	0.0001	0.0001
酸不溶物,w/%≤	Acid Insoluble	-	-	0.05	0.05

 
1、Chemical Name:  FERROUS SULFATE
2、Molecular Formula : FeSO₄·7H₂O, FeSO₄·nH₂O
3、Molecular Weight: 278.02(Heptahytrate), 151.91(Monohydrate)
4、CAS: 7782-63-0(Heptahydrate), 7720-78-7(Monohydrate)
5、Character:Pale,blue-green crystals or granules that are efflorescent in dry air.In moist air,it oxidizes readily to form a brown-yellow,basic ferric sulfate. It’s soluble in water, insoluble in ethanol.
6、Usage: It is used as nutrient, fruit and vegetable chromogenic reagent.
7、Packing: It is packed with plastic bag as 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 ventilating 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.