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2 Years
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| Brand Name : | JD |
| Model Number : | JD-FCPG-99 |
| Certification : | ISO9001 |
| Payment Terms : | T/T |
| Supply Ability : | 1000TONS |
| Delivery Time : | 5 DAYS |
Ferric Chloride Hexahydrate
Grade : pharmaceutical, high purity USP ,EP CP grade ,AR grade
Product name | Ferric Chloride Hexahydrate | ||
Model number | JD-FCPG-99 | Manufacture date | 2024.02.25 |
Analysis date | 2024.02.25 | Expiry date | 2024.02.25 |
| Item | Standard | Results | |
| Appearance | yellow or orange crystal | yellow or orange crystal | |
| Purity | ≥99% | 99.2% | |
| Insoluble in water | ≤0.01% | 0.0046% | |
| Free acid(HCL) | ≤0.1% | 0.08% | |
| Sulphate | ≤0.01% | 0.01% | |
| Nitrate | ≤0.01% | 0.006% | |
| Phosphate | ≤0.01% | 0.00014% | |
| As | ≤0.002% | without | |
| Na | ≤0.02% | 0.003% | |
| Mg | ≤0.002% | 0.0005% | |
| K | ≤0.002% | 0.001% | |
| Ca | ≤0.005% | 0.002% | |
| Mn | ≤0.02% | 0.0005% | |
| Ferrous | ≤0.002% | 0.0004% | |
| Cu | ≤0.005% | 0.0003% | |
| Zn | ≤0.003% | qualified | |
| Hg | ≤0.0003% | without | |
| Cd | ≤0.0001% | without | |
| Pb | ≤0.0005% | qualified | |
| Conclusion | Qualified | ||
The difference between hexahydrate ferric chloride and tetrahydrate
ferrous chloride
1. Differences in raw materials
Ferric chloride hexahydrate (FeCl ∝· 6H ₂ O)
Main raw materials: Iron or iron oxides (such as iron filings and
iron powder) react with hydrochloric acid to form ferric chloride
solution, which crystallizes to obtain hexahydrate 46.
Source of by-products: Some can be further purified by oxidation of
ferrous chloride to prepare 8.
Tetrahydrate ferrous chloride (FeCl ₂ · 4H ₂ O)
Main raw materials: Steel pickling waste liquid (containing ferrous
chloride) is concentrated and crystallized, or synthesized by
reacting potassium chloride with iron powder to form 13.
Purity control: It is necessary to avoid oxidation and stabilize
the product through nitrogen protection or vacuum packaging.
2. Comparison of production processes
Characteristic: hexahydrate ferric chloride tetrahydrate ferrous
chloride
The core reaction involves the direct reaction of iron with
hydrochloric acid to produce ferric chloride solution, which
crystallizes into hexahydrate. The acid washing waste liquid
(containing Fe ² ⁺) is concentrated and crystallized or synthesized
from potassium chloride and iron powder
Oxidation control requires controlling reaction conditions to avoid
the generation of by-products (such as FeCl ₂). Oxygen must be
strictly isolated to prevent oxidation to ferric chloride;
Vacuum/nitrogen protection process is commonly used
After evaporation and cooling of the crystallization process
solution, brownish yellow crystals precipitate, which are prone to
moisture absorption and need to be sealed for storage. 68. Green
crystals need to be dried at low temperatures to avoid
decomposition or oxidation caused by high temperatures
3. Differences in application fields
Hexahydrate ferric chloride
Water treatment: efficient flocculant used to remove suspended
solids and heavy metal ions from wastewater.
Electronic industry: preparation of circuit board etchants and
magnetic materials (such as synthesis of iron oxide powder) 28.
Chemical synthesis: Production of organic reaction catalysts (such
as phenol chlorination) and dye intermediates.
Tetrahydrate ferrous chloride
Wastewater treatment: The decolorization effect of printing and
dyeing wastewater is significant, better than ferrous sulfate 35.
Magnetic material: High purity iron oxide powder is generated by
high-temperature calcination and used for the production of
manganese zinc ferrite.
Food and Agriculture: Preservatives, Fertilizer Additives (must
meet low toxicity standards) 5.
There are significant differences between hexahydrate ferric
chloride and tetrahydrate ferrous chloride in terms of raw material
sources, production processes, and core applications. The former
focuses on oxidizing trivalent iron and is suitable for high
oxidation scenarios such as etching and catalysis; The latter is
characterized by reducing divalent iron and is more suitable for
fields such as decolorization and preparation of magnetic materials
that require oxidation inhibition.
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