Industrial chemicals · Taylor, TXTechnical Data Sheet
50% Diluted Acetic Acid Food Grade
Food Grade · 50%
- CAS number
- 64-19-7
- UN number
- UN2790
- Hazard class · packing group
- 8 · PG II
- Structure
Structure · PubChem - Grade
- Food Grade · 50%
- Signal word
- Danger
- Hazards
- Proper shipping name
- Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by mass
Identity & Composition
- Product Name
- 50% Diluted Acetic Acid Food Grade
- Alliance Code
- 50-acetic-acid-food-grade
- Grade
- Food Grade
- Concentration
- 50%
- CAS Number
- 64-19-7PubChem
- Formula
- —PubChem
- Molecular Weight
- 60.05PubChem
- Product Type
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (CH3COOH) | 49.5 - 50.5 % | 49.98 % | — | Interpreted |
| Color (APHA) | Max 10 | 3 | ASTM D1209 (Pt-Co) | Interpreted |
| Acetic Anhydride | 0.005% max | 0.0007 % | — | Interpreted |
| Arsenic | 0.1 ppm max | 0.0027 ppm | — | Interpreted |
| Heavy Metals | 0.26 ppm max | 0.051 ppm | — | Interpreted |
| Lead | 0.26 mg/kg max | 0.0035 mg/kg | — | Interpreted |
| Non-Volatile Residue | 0.0026% max | 0.00011 % | FCC | Interpreted |
| iron | 0.26 ppm max | 0.024 ppm | — | Interpreted |
| sulfates | 1 ppm max | 0.12 ppm | — | Interpreted |
| Chloride (Cl) | Pass Test (USP) | Passes test | — | Interpreted |
| Identification (Acetate) | A 1:3 aqueous solution gives positive tests for Acetate | Passes test | — | Interpreted |
| Readily Oxidizable Substances | Passes test | Passes test | — | Interpreted |
| Composition | 50 % acetic acid in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade Food Grade | 50% | — | current | current |
| Technical | 50% | — | 50-vinegar-concentrated-industrial-strength | 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 | Clear, colorless liquid | Published reference |
| Form | Liquid | Published reference |
| Odor | Pungent, vinegar-like | Published reference |
| pH | 1.8-2.0 (50% solution) | Published reference |
| Specific Gravity | 1.053 - 1.063 | Interpreted |
| Density | ~1.055-1.06 g/cm³ | Published reference |
| Boiling Point | 100 to 118 °C (212 to 244 °F) (aqueous solution) | Adjudicated |
| Melting Point | 0 to 16 °C (32 to 61 °F), freezing point (aqueous solution) | Adjudicated |
| Flash Point | >60 °C (combustible, not GHS-flammable) | Published reference |
| Solubility (water) | Miscible with water | Published reference |
Strong acid — density and vapor-pressure values shown are at 20 °C; values shift markedly with concentration and temperature. Reference concentration-temperature curves before specifying equipment.
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| aluminium | Not recommended | water-diluted acetic acid; the source restricts aluminium to chemically pure (glacial) acid and warns that corrosion of metals increases with water content | ingredi.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.
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN2790Adjudicated
- Hazard Class
- 8Adjudicated
- Packing Group
- IIAdjudicated
- Proper Shipping Name
- Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by massAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H314Adjudicated
- P-Codes (Precautionary Statements)
- P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 10 ppm TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- —no canonical
- NIOSH REL
- 10 ppm TWA / 15 ppm STELNIOSH Pocket Guide
- NIOSH IDLH
- 50 ppmNIOSH Pocket Guide
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: 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 50% Diluted Acetic Acid Food Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Catalog EquivalentsCross-reference vs major chemical suppliers
Honeywell
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| 33209 | ACS | 99.8% | Unverified candidate | Fluka ACS grade |
Sigma-Aldrich
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| 320099 | ACS Reagent | 99.7% | Unverified candidate | ACS Reagent ≥99.7% |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
- Direct food ingredient used as a curing and pickling agent and as a flavor enhancergovinfo.gov
- Flavoring agent and adjuvant, and pH control agent, in foodgovinfo.gov
- Solvent and vehicle in food, and boiler water additive complying with 21 CFR 173.310govinfo.gov
- Industrial manufacturingmubychem.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
- Keep closed in plastic, glass or stainless-steel containers, not mild steel or aluminum. Store away from bases and bleach.Adjudicated
- Handling Precautions
- Use full PPE including face shield, acid-resistant gloves and apron. Add acid to water slowly with stirring; never reverse. Ventilation required.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong bases; strong oxidizers; bleach and other hypochlorites (release chlorine); carbonates; reactive metals (release hydrogen).Adjudicated
- 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)
UN2790, Acetic acid solution, not less than 50 percent but not more than 80 percent acid, by mass, 8, PG II
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, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.7 | 2026-10-13 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.6 | 2026-10-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-09-30 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-08-19 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-08-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 6 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.