Industrial chemicals · Taylor, TXTechnical Data Sheet
Ferric Chloride 40% Water Treatment Grade
Reagent · 40%
Identity & Composition
- Product Name
- Ferric Chloride 40% Water Treatment Grade
- Alliance Code
- ferric-chloride-40
- Grade
- Reagent
- Concentration
- 40%
- CAS Number
- 7705-08-0PubChem
- Formula
- Cl3FePubChem
- Molecular Weight
- 162.20PubChem
- Product Type
- solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (FeCl3) | 38 - 42 % | 40 % | — | Supplier specification |
| Ferrous chloride (FeCl2) | 2.5 % max | 0.091 % | — | Supplier specification |
| Ferrous (as Fe2) | Max 0.5% (w/w) | 0.040% (w/w) | — | Supplier specification |
| Iron (Fe, total) | 13.8 ± 0.4 % | 13.8 % | — | Supplier specification |
| Sulfate (SO4 2-) | < 0.5 % | 0.080 % | — | Supplier specification |
| Free acid (as HCl) | 1.0 % max | 0.30 % | — | Supplier specification |
| Total insoluble matter | 0.2 % max | 0.020 % | — | Supplier specification |
| Arsenic (As) | Max 3 mg/kg | 0.40 mg/kg | ICP-MS / EPA 200.8 | Interpreted |
| Lead (Pb) | Max 5 mg/kg | 0.50 mg/kg | ICP-MS / EPA 200.8 | Interpreted |
| Mercury (Hg) | Max 0.5 mg/kg | 0.005 mg/kg | Cold vapour AAS / EPA 245.1 | Interpreted |
Specification values are guaranteed limits. Typical values are representative of production lots and are not guaranteed. Lot-specific certificates of analysis ship with every order.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade Reagent | 40% | — | current | current |
| Technical | 10% | — | ferric-chloride-10 | View TDS → |
| Technical | — | — | ferric-chloride-20 | View TDS → |
| Technical | — | — | ferric-chloride-30 | View TDS → |
Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | Dark brown liquid | Published reference |
| Form | Liquid | Published reference |
| Odor | Slight hydrochloric acid odor | Published reference |
| pH | < 1 | Supplier specification |
| Specific Gravity (20 °C) | 39.900 - 47.700 DB | Supplier specification |
| Density | 1.40-1.43 g/cm³ (40%, 20°C) | Published reference |
| Boiling Point | ~104 °C | Published reference |
| Melting Point | < -20 °C | Published reference |
| Flash Point | Not applicable (non-combustible aqueous solution) | Published reference |
| Solubility (water) | Miscible with water | Published reference |
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| fiberglass tank | Compatible | — | scribd.com |
| plastic tank (type unspecified) | Compatible | — | scribd.com |
| metals (unspecified) | Not recommended | — | thaichloride.com |
| fiberglass | Compatible | — | scribd.com |
| plastic | Compatible | — | scribd.com |
Compatibility is drawn from published manufacturer and supplier documentation for this product; each rating is sourced. Confirm against your specific duty cycle before equipment selection.
Materials Selection Tool
Showing 13 of 13 materials compatible at the selected envelope.
| Material | Rating | Max T (°C) | Notes |
|---|---|---|---|
Buna-N (NBR) elastomer | Good | 60 | Acceptable |
EPDM elastomer | Excellent | 100 | Standard for brine gaskets. |
Viton (FKM) elastomer | Excellent | 100 | Preferred elastomer |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert to salt solutions. |
Concrete (sealed) glass ceramic | Good | — | Acceptable with epoxy coating |
304 stainless steel metal | Fair | 25 | Pitting in chloride-rich service |
316L Stainless Steel metal | Good | 60 | Watch for chloride pitting above 60 °C in chloride salts. |
Aluminium metal | Poor | — | Pitting; not recommended for brine |
Carbon steel metal | Poor | — | Rapid rust in brine |
FRP thermoplastic | Excellent | 60 | Common bulk-storage |
HDPE thermoplastic | Excellent | 60 | Universal salt brine compatibility. |
PP thermoplastic | Excellent | 80 | Acceptable for hot brine |
PVC thermoplastic | Excellent | 60 | Standard for brine piping. |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN258249 CFR 172.101
- Hazard Class
- 8Adjudicated
- Packing Group
- IIIAdjudicated
- Proper Shipping Name
- Ferric chloride, solutionAdjudicated
GHS / OSHA HazCom 2012
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H290, H302, H314, H315, H318, H412Adjudicated
- P-Codes (Precautionary Statements)
- P234, P260, P264, P270, P273, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P313, P321, P330, P332+P313, P362, P363, P390, P405, P406, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- —no canonical
- ACGIH TLV
- —no canonical
- NIOSH REL
- —no canonical
- NIOSH IDLH
- —no canonical
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Ferric Chloride 40% Water Treatment Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Coagulant for water quality improvement, municipal wastewater treatment, and industrial wastewater treatmentthaichloride.com
- Removal of phosphates and heavy metals (lead, cadmium, mercury) from wastewaterthaichloride.com
- Dissolving metals such as copper and zinc (metal etching / pickling)thaichloride.com
- Coagulant for potable water and wastewater treatmentscribd.com
- Municipal and industrial water and wastewater treatment (37-42% ferric chloride solution)corecheminc.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- Store in a dry place, away from sources of ignition and heat. Avoid direct sunlight and keep in a well-ventilated area. Once opened, use within a limited time.thaichloride.com
- Handling Precautions
- Standard chemical PPE — dust mask and goggles for handling of fine grades. Avoid generating airborne dust.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Specific incompatibilities depend on the salt — consult the SDS. Many salts react with strong acids to release gases.Class-level guidance — not product-specific; the SDS controls.
- Shelf Life
- Consult Technical Services for product-specific shelf life
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
UN2582, Ferric chloride, solution, 8, PG III
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.4 | 2026-08-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-07-22 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 7 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.2 | 2026-07-17 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.