Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Potassium Bicarbonate - FCC USP Grade
USP Grade
Last reviewed 2026-06-17 by Andre Taki, DOT Hazmat Specialist.
Identity & Composition
- Product Name
- Potassium Bicarbonate - FCC USP Grade
- Alliance Code
- potassium-bicarbonate-fcc-usp-grade
- Grade
- USP Grade
- Concentration
- —
- CAS Number
- 298-14-6PubChem
- Formula
- CHKO3PubChem
- Molecular Weight
- 100.115PubChem
- Product Type
- pure_substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (KHCO3, dried basis) | 99.5 - 101.5 % | 100.5 % | Acidimetric titration with 1 N hydrochloric acid VS using methyl red TS (1 mL = 100.1 mg KHCO3) | USP monograph |
| Arsenic (as As) | 1.5 ppm by wt. Max. | 0.05 ppm by wt. | Elemental impurities (USP <232>/<233> style ICP determination) | Supplier specification |
| Cadmium (as Cd) | 0.2 ppm by wt. Max. | 0.01 ppm by wt. | Elemental impurities (USP <232>/<233> style ICP determination) | Supplier specification |
| Carbonate (FCC limit test) | Passes test (solution does not immediately turn more than a faint pink color) | Passes test | Dissolve 1 g without agitation in 20 mL water at not above 5 degrees C, add 2 mL 0.1 N hydrochloric acid and 2 drops phenolphthalein | FCC |
| Heavy Metals (as Pb) | max. 10 ppm | 1 ppm | — | Supplier specification |
| Identification | A 1:10 aqueous solution gives positive tests for Potassium and for Bicarbonate | Passes test | Chemical identity tests for Potassium and for Bicarbonate on a 1:10 aqueous solution | FCC |
| Lead (Pb) | Not more than 2 mg/kg | 0.05 mg/kg | APDC Extraction Method under Lead Limit Test, FCC Appendix IIIB | FCC |
| Loss on Drying | Not more than 0.25 % | 0.06 % | Dried over silica gel for 4 hours (FCC Appendix IIC) | FCC |
| Loss on Drying - USP acceptance criterion | Not more than 0.3 % | 0.06 % | Dry over silica gel for 4 hours | USP monograph |
| Mercury (as Hg) | 0.3 ppm by wt. Max. | 0.01 ppm by wt. | Elemental impurities (USP <232>/<233> style ICP determination) | Supplier specification |
| Normal Carbonate | max. 2.5% | 0.3 % | — | Supplier specification |
| Residual Solvents | Meets Requirements | Passes test | USP <467> (not required where no solvents are used in manufacture) | Supplier specification |
| Chloride (as Cl) | Not more than 0.005 % | 0.001 % | USP <221> chloride limit test / argentometric titration | Interpreted |
| Sulfate (as SO4) | Not more than 0.01 % | 0.002 % | USP <221> sulfate limit test, turbidimetric against standard | Interpreted |
| Iron (Fe) | Not more than 5 mg/kg | 0.4 mg/kg | ICP-OES (FCC iron limit test) | Supplier specification |
| Screen Analysis (sieve) | 100 % through 20 mesh (850 um); not more than 10 % through 200 mesh (75 um) | Passes test | ASTM E11 sieve stack / Ro-Tap, 10 min | Interpreted |
| calcium | 0.002 % max | 0.0002 % | — | Supplier specification |
| insoluble | 0.01 % max | 0.002 % | — | Supplier specification |
| magnesium | 0.001 % max | 0.0001 % | — | Supplier specification |
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.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | Colorless, transparent, monoclinic prisms or white, granular powder; stable in air | FCC |
| Form | Solid | Published reference |
| pH | 8.0 - 8.6 | Interpreted |
| Density | ~64 lb/cu.ft (published as informational only, not a specification item) | Supplier specification |
| Boiling Point | 87 | Published reference |
| Melting Point | Decomposes before melting | Published reference |
| Flash Point | N/A | Published reference |
| Solubility (water) | Soluble | Published reference |
Materials of Construction
| Material | Rating | Max T (°C) | Notes | Source |
|---|---|---|---|---|
Buna-N (NBR) elastomer | Good | 60 | Acceptable | Cole-Parmer Chemical Compatibility |
EPDM elastomer | Excellent | 100 | Standard for brine gaskets. | Parker O-ring Chemical Compatibility |
Viton (FKM) elastomer | Excellent | 100 | Preferred elastomer | Cole-Parmer Chemical Compatibility |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert to salt solutions. | Cole-Parmer Chemical Compatibility |
Concrete (sealed) glass ceramic | Good | — | Acceptable with epoxy coating | Cole-Parmer Chemical Compatibility |
304 stainless steel metal | Fair | 25 | Pitting in chloride-rich service | Cole-Parmer Chemical Compatibility |
316L Stainless Steel metal | Good | 60 | Watch for chloride pitting above 60 °C in chloride salts. | NACE Chloride Pitting Guidelines |
Aluminium metal | Poor | — | Pitting; not recommended for brine | Cole-Parmer Chemical Compatibility |
Carbon steel metal | Poor | — | Rapid rust in brine | Cole-Parmer Chemical Compatibility |
FRP thermoplastic | Excellent | 60 | Common bulk-storage | Cole-Parmer Chemical Compatibility |
HDPE thermoplastic | Excellent | 60 | Universal salt brine compatibility. | Cole-Parmer Chemical Compatibility |
PP thermoplastic | Excellent | 80 | Acceptable for hot brine | Cole-Parmer Chemical Compatibility |
PVC thermoplastic | Excellent | 60 | Standard for brine piping. | Cole-Parmer Chemical Compatibility |
Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.
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
- Not regulatedAdjudicated
- Hazard Class
- Not regulatedAdjudicated
- Packing Group
- Not regulatedAdjudicated
- Proper Shipping Name
- Not regulatedAdjudicated
GHS / OSHA HazCom 2012
- Signal Word
- Not regulatedAdjudicated
- H-Codes (Hazard Statements)
- —no canonical
- P-Codes (Precautionary Statements)
- —no canonical
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 Potassium Bicarbonate - FCC USP Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Food-grade functional use as a pH control agent and leavening agent (FCC Food Grade monograph function statement)potassiumbicarbonate.org
- pH control and leavening agent function stated for FCC Food Grade materialanmol.org
- Use as a pharmaceutical excipient (USP anhydrous material registered with the US FDA as an excipient)armandproducts.com
- Supplied as a bulk food chemical and bulk pharmaceutical chemical for manufacturing, processing or repackingmgscientific.com
- pH controlanmol.org
- leavening agentanmol.org
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
- Cool, dry area in sealed containers. Many salts are hygroscopic — protect from atmospheric moisture, which can cause caking, hydrate formation, or reduced flow.Class-level guidance — not product-specific; the SDS controls.
- 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)
Not regulated for transport.
Confirm against shipping documents and carrier requirements before tender.
NMFC Class
70
Revision History
Last reviewed 2026-06-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.1 | 2026-06-17 | Canonical data re-verified: 3 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.