Technical Data Sheet
Technical
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (NH₄HF₂) | ≥96.0% | 98.4% | — | Supplier specification |
| Ammonium fluoride (NH4F) | 4.0 % maximum | 1.2 % | — | Supplier specification |
| Antimony (Sb) | 10 ppm maximum | 0.3 ppm | — | Supplier specification |
| Arsenic (As) | 10 ppm maximum | 0.3 ppm | — | Supplier specification |
| Chloride (Cl) | 30 ppm maximum | 8 ppm | — | Supplier specification |
| Copper (Cu) | 30 ppm maximum | 0.5 ppm | — | Supplier specification |
| Fluorine (as F) | 65.0 % minimum | 66.1 % | — | Supplier specification |
| Iron (Fe) | 10 ppm maximum | 3 ppm | — | Supplier specification |
| Lead (Pb) | 5.0 ppm maximum | 0.15 ppm | — | Supplier specification |
| Nickel (Ni) | 10 ppm maximum | 1.2 ppm | — | Supplier specification |
| Silica (SiO2) | 100 ppm maximum | 25 ppm | — | Supplier specification |
| Sulfate (SO4) | 100 ppm maximum | 20 ppm | — | Supplier specification |
| Water (H2O) | 1000 ppm maximum | 400 ppm | — | Supplier specification |
| Non-volatile matter (residue after ignition) | 0.10 % maximum | 0.01 % | Gravimetric, ignition at 600 °C in platinum | 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.
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade Technical | — | — | current | current |
| ACS | — | — | ammonium-bifluoride-flakes-acs-grade | 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.
One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.
| Property | Value | Source |
|---|---|---|
| Form | Solid | Published reference |
| Odor | Odorless | Published reference |
| pH | 4.0 - 6.5 | Interpreted |
| Density | 1.5 at 68 °F (USCG, 1999) - Denser than water; will sink | Published reference |
| Boiling Point | 463.1 °F at 760 mmHg (Decomposes at 446 °F) (USCG, 1999) | Published reference |
| Melting Point | 258 °F (USCG, 1999) | Published reference |
| Flash Point | N/A | Published reference |
| Material | Rating | Conditions | Source |
|---|---|---|---|
| glass / silicate-containing materials | Not recommended | — | lab.solstice.com |
| glass | Not recommended | — | lab.solstice.com |
| silicate-containing materials | Not recommended | — | lab.solstice.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.
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.
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Ammonium Bifluoride Flakes Technical Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
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.
UN1727, Ammonium hydrogendifluoride, solid, 8, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.3 | 2026-08-05 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 5 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 |
| 1.0 | 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.