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Polymerized ferric chloride

Water treatment agent polymerization ferric chloride

1, the subject content and suitable range

This standard specifies the technical requirements and test methods of polymeric ferric chloride products.

This standard applies to iron containing hydrochloric acid (sulfuric acid) as the main raw material of polymeric ferric chloride. The product is mainly used for industrial water and wastewater treatment.

Molecular formula:[Fe2(OH)nCl6-n]m  O

2, reference standard

GB14591 Purifying agent Polymeric ferric sulfate
GB4482 Purifying agent Ferric chloride
GB/T601 Chemical reagents Titration analysis (capacity analysis)
    Preparation of standard solution
GB/T602 Chemical reagents Preparation of standard solutions for the determination of impurities
GB/T603 Chemical reagents Preparation of all preparations and preparations in test methods

3, product classification

Polymeric ferric chloride products divided into three categories.

4, technical requirements

Appearance: reddish brown viscous liquid.

Polymerized ferric chloride should meet the requirements of Table 1.

Quality Standard

Project Index
First type Second type Third type
Density g/cm3(20°C) 1.35 1.30 1.20
Pig iron content, % ≥ 12 10 8
Reducing substances(Fe2+), % ≤ 0.3 0.3 0.3
Basicity of the salt, % 5-30 5-30 5-30
PH(1% Aqueous solution) 2.0-3.0 2.0-3.0 2.0-3.0
Insoluble matter content, % ≤ 0.2 0.2 0.2
As, % ≤ 0.0020 0.0020 0.0020
Pb, % ≤ 0.0040 0.0040 0.0040


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