Standard No.:	GB 29211-2012
Chinese Name:	食品安全国家标准 食品添加剂 硫酸亚铁
English Name:
Professional Classification:	X09
Issued by:
Issued on:	2012-12-25
Implemented on:	2013-01-25
Status:	VALID
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard is applicable to food additives (ferrous sulfate heptahydrate and ferrous sulfate dry product) which are produced delicately from the reaction of iron and sulfuric acid.

2 Chemical Name, Molecular Formula and Relative Molecular Mass

2.1 Chemical name

Ferrous sulfate heptahydrate

Ferrous sulfate dry product

2.2 Molecular formula
Ferrous sulfate heptahydrate: FeSO4?7H2O

Ferrous sulfate dry product: FeSO4?nH2O
2.3 Relative molecular mass

Ferrous sulfate heptahydrate: 278.01 (as per 2007 international relative atomic mass)

3 Term and Definition

For the purposes of this document, the following term and definition apply.
3.1 ferrous sulfate dry product
the ferrous sulfate that is produced by heating and drying ferrous sulfate heptahydrate. Based on different drying degree, ferrous sulfate dry product contains ferrous sulfate monohydrate and ferrous sulfate tetrahydrate in various proportions.

4 Technical Requirements

4.1 Sensory requirements shall be in accordance with those specified in Table 1.