Industrial chemicals · Taylor, TXTechnical Data Sheet
Citric Acid Monohydrate - USP Food Grade
USP Food Grade
- CAS number
- 5949-29-1
- Structure
Structure · PubChem - Grade
- USP Food Grade
- Signal word
- Warning
- Hazards
Identity & Composition
- Product Name
- Citric Acid Monohydrate - USP Food Grade
- Alliance Code
- citric-acid-monohydrate-usp-food-grade
- Grade
- USP Food Grade
- Concentration
- —
- CAS Number
- 5949-29-1PubChem
- Formula
- —PubChem
- Molecular Weight
- 210.14PubChem
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (C6H8O7, anhydrous basis) | 99.5%-100.5% on the anhydrous basis | 99.98 % | Titration with 1 N sodium hydroxide VS to phenolphthalein; 1 mL = 64.03 mg C6H8O7 | Interpreted |
| Clarity of Solution | The Sample solution shows the same clarity as that of water or its opalescence is not more pronounced than Standard suspension A | Passes test | 200 mg/mL in water, compared with water and Standard suspension A | Interpreted |
| Description | Colorless, translucent crystals or a white, granular to fine, crystalline powder | Passes test | — | Interpreted |
| Heavy Metals | NMT 10 µg/g | 0.35 | Heavy metals (as Pb), sulfide colour comparison against lead standard | Interpreted |
| Lead | Not more than 0.5 mg/kg | 0.073 mg/kg | — | Interpreted |
| Oxalic Acid | ≤ 0.036 % | 0.0015 % | — | Interpreted |
| Residue on Ignition (USP) | NMT 0.1% | 0.0094 % | Residue on Ignition <281>, 1.0 g | Interpreted |
| Readily Carbonizable Substances | Not darker than Matching Fluid K | Passes test | 1.0 g in 10 mL sulfuric acid, 90 ± 1 °C for 60 ± 0.5 min | Interpreted |
| Sulfate (SO4) | ≤ 0.015 % | 0.0047 % | — | Interpreted |
| Tridodecylamine (solvent-extracted material only) | Not more than 0.1 mg/kg | 0.011 mg/kg | — | Interpreted |
| Water | 7.5%-9.0% | 8.8 % | Water Determination, Method I <921> (Karl Fischer), 0.5 g sample | Interpreted |
| Identification | Meets USP/FCC requirements | Passes test | USP citrate identification test / FTIR vs. reference standard | Interpreted |
| Arsenic (as As) | Not more than 1 mg/kg | 0.045 mg/kg | ICP-MS / FCC arsenic limit test | Interpreted |
| iron | 0 - 5 ppm | < 1 | — | Interpreted |
| oxalate | 0 - 100 ppm | < 25 | — | 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 USP Food Grade | — | — | current | current |
| ACS Reagent | — | — | citric-acid-monohydrate-acs-reagent-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.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | Translucent | Adjudicated |
| Form | Crystal | Published reference |
| Color | The Sample solution is not more intensely colored than water; if more intensely colored, not more intensely colored than Standard solutions A, B, and C | Interpreted |
| Density | 1.5 g/cm³ | Published reference |
| Boiling Point | 175 | Published reference |
| Melting Point | 135 °C | Adjudicated |
| Flash Point | 385 | Published reference |
| Solubility (water) | Solubility in water, g/100ml at 20 °C: 59.2 | Published reference |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- Not regulatedAdjudicated
- Hazard Class
- Not regulatedAdjudicated
- Packing Group
- Not regulatedAdjudicated
- Proper Shipping Name
- Not regulatedAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- WarningAdjudicated
- H-Codes (Hazard Statements)
- H315, H319, H335Adjudicated
- P-Codes (Precautionary Statements)
- P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, 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: 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 Citric Acid Monohydrate - USP Food Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Bulk pharmaceutical chemical (GMP manufactured) for manufacturing, processing or repackaging, with further processing required for injectable dosage formsassets.thermofisher.com
- USP monohydrate intended for use in dialysis solutions or, after further processing, injectable dosage formsmubychem.com
- FCC food-grade functions: sequestrant, dispersing agent, acidifier and flavoring agentmubychem.com
- Industrial use in the manufacture of ecologically compatible detergents, chemical cleaning, concrete admixtures and plasticizersingredi.com
- Used as a hydraulic fracturing / well stimulation chemical in oil and shale gas productionmubychem.com
- Used in the preparation of injectable dosage forms after further processing.assets.thermofisher.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 containers tightly closed in a cool, dry, well-ventilated place away from sunlight and incompatible materials. Polypropylene packaging is suitable. Avoid dust formation when handling.Adjudicated
- Handling Precautions
- Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong oxidizing agents; strong bases; reducing agents; nitrates.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)
Not regulated for transport.
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 |
|---|---|---|---|
| 1.5 | 2026-10-13 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-09-30 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 1 field 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 |
| 1.0 | 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.