Industrial chemicals · Taylor, TXTechnical Data Sheet
Citric Acid Anhydrous - ACS Reagent Grade
ACS Reagent
Identity & Composition
- Product Name
- Citric Acid Anhydrous - ACS Reagent Grade
- Alliance Code
- citric-acid-anhydrous-acs-reagent-grade
- Grade
- ACS Reagent
- Concentration
- —
- CAS Number
- 77-92-9PubChem
- Formula
- C6H8O7PubChem
- Molecular Weight
- 192.12PubChem
- Product Type
- —
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay | Min 99.5% | 99.9% | — | Supplier specification |
| Chloride | Max 0.001% | 0.0002% | — | Supplier specification |
| Description | Fine granular | Passes test | — | ACS Reagent Chemicals |
| Identification | To Pass Test | Passes test | — | ACS Reagent Chemicals |
| Insoluble Matter | Max 0.005% | 0.005% | — | Supplier specification |
| Iron | Max 3 ppm | 0.2 ppm | — | Supplier specification |
| Lead | Max 2 ppm | 0.02 ppm | — | Supplier specification |
| Oxalate (C2O4) | To Pass Test | Passes test | — | ACS Reagent Chemicals |
| Phosphate | Max 0.001% | 0.0001% | — | Supplier specification |
| Residue after ignition | Max 0.02% | 0.003% | — | Supplier specification |
| Substances carbonizable by hot sulfuric acid | Passes test | Passes test | — | ACS Reagent Chemicals |
| Sulfate | Max 0.002% | 0.0005% | — | Supplier specification |
| Water (Karl Fischer) | Max 0.5% | 0.1% | Karl Fischer titration | Supplier specification |
| arsenic | 1 ppm max | 0.02 ppm | — | Supplier specification |
| residue | 0.02 % max | 0.003% | — | 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.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade ACS Reagent | — | — | current | current |
| Reagent | 50% | — | citric-acid-50-solution | View TDS → |
| Technical | 25% | — | citric-acid-25-solution | View TDS → |
| Food | — | — | citric-acid-anhydrous-food-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 | Citric acid appears as colorless, odorless crystals with an acid taste. Denser than water. (USCG, 1999) | Published reference |
| Odor | Odorless | Published reference |
| Density | 1.54 at 68 °F (USCG, 1999) - Denser than water; will sink | Published reference |
| Boiling Point | Decomposes (NTP, 1992) | Published reference |
| Melting Point | 152 - 155 C | Interpreted |
| Flash Point | 100 °C | Published reference |
| Solubility (water) | greater than or equal to 100 mg/mL at 72 °F (NTP, 1992) | 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 HazCom 2012
- Signal Word
- WarningAdjudicated
- H-Codes (Hazard Statements)
- H319, H335Adjudicated
- P-Codes (Precautionary Statements)
- P261, P264, P271, P280, P304+P340, P305+P351+P338, P314, P337+P313, 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: 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 Citric Acid Anhydrous - ACS Reagent Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- 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
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 at 15-25 °Clobachemie.com
- 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
- Consult the SDS for material-specific incompatibilities.Class-level guidance — not product-specific; the SDS controls.
- Shelf Life
- 60 monthslobachemie.comStore at 15-25 °C
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.
Freight classification is a fallback estimate. Verify with carrier before tender.
Revision History
Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.1 | 2026-07-17 | Canonical data re-verified: 10 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.