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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 |