Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Glycerin USP Grade
USP Grade
- CAS number
- 56-81-5
- Structure
Structure · PubChem - Grade
- USP Grade
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- Product Name
- Glycerin USP Grade
- Alliance Code
- glycerin-usp-grade
- Grade
- USP Grade
- Concentration
- —
- CAS Number
- 56-81-5PubChem
- Formula
- C3H8O3PubChem
- Molecular Weight
- 92.09PubChem
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (C3H8O3, anhydrous basis) | 99.0 - 101.0 percent | 100.0 percent | USP periodate oxidation / sodium hydroxide titration (monograph Assay) | Interpreted |
| Chloride | NMT 0.001% | 0.00014 % | — | Interpreted |
| Chlorinated Compounds | NMT 0.003% of Cl | 0.00023 % | Morpholine reflux followed by silver-nitrate turbidity comparison | Interpreted |
| Color (APHA) | 10 Max APHA | 6 | AMT-FGQ-G10 | Interpreted |
| Diethylene Glycol | NMT 0.1% | 0.0044 % | Gas chromatography with flame-ionization detection | Interpreted |
| Ethylene glycol | 0.10 Max % | 0.0059 % | USP 41 (Identification Test B, gas chromatography) | Interpreted |
| Fatty Acids and Esters | NMT 1 mL of 0.5 N sodium hydroxide | 0.2 | Titration of a 50 g sample with 0.5 N sodium hydroxide and 0.5 N hydrochloric acid | Interpreted |
| Heavy Metals | NMT 5 micro-gm per g | 1.0 | Heavy metals (as Pb), sulfide colour comparison against lead standard | Interpreted |
| Individual Impurities, excluding Diethylene Glycol | NMT 0.1% | 0.022 % | Gas chromatography with flame-ionization detection | Interpreted |
| Related compounds (any individual impurity other than diethylene glycol) | not more than 0.1% | 0.022 % | USP gas chromatography, area normalization | Interpreted |
| Related compounds (total impurities, including diethylene glycol) | not more than 1.0% | 0.057 % | USP gas chromatography, area normalization | Interpreted |
| Residue on Ignition | NMT 0.01% | 0.0016 % | Ignition of a 50 g sample followed by sulfuric-acid treatment and ignition to constant weight | Interpreted |
| Specific gravity, 25/25 °C | 1.2612 Min | 1.2618 | USP <841> | Interpreted |
| Sulfate | 0.002 % max | 0.00019 % | USP <221> | Interpreted |
| Total Impurities, including Diethylene Glycol | NMT 1.0% | 0.057 % | Gas chromatography with flame-ionization detection | Interpreted |
| Water | NMT 5.0% | 0.20 % | — | Interpreted |
| related compounds | 0.1 % max | 0.07 % | — | 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 Grade | — | — | current | current |
| Food | 75% | — | glycerin-75-food-grade | View TDS → |
| Food | 50% | — | glycerin-50-food-grade | View TDS → |
| Food | 25% | — | glycerin-25-food-grade | View TDS → |
| Technical Grade | — | — | glycerin-technical-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 | Clear, colorless, thick viscous liquid | Adjudicated |
| Form | Liquid | Published reference |
| Odor | Odorless | Adjudicated |
| pH | Neutral (5.5–8 in aqueous solution) | Adjudicated |
| Specific Gravity | 1.25–1.26 at 20 °C (water = 1) | Adjudicated |
| Density | 1.261 at 68 °F (USCG, 1999) - Denser than water; will sink | Published reference |
| Boiling Point | 290 °C (554 °F), with decomposition | Adjudicated |
| Melting Point | 18–20 °C (64–68 °F); readily supercools and stays liquid | Adjudicated |
| Flash Point | 160–199 °C (320–390 °F) | Adjudicated |
| Vapor Pressure | Below 0.001 hPa at 20 °C (negligible) | Adjudicated |
| Vapor Density | 3.2 (air = 1) | Adjudicated |
| Solubility (water) | Completely miscible with water; hygroscopic | Adjudicated |
| Refractive Index (nD 20) | 1.470-1.475 | Interpreted |
| Viscosity | About 1,400 mPa·s at 20 °C | Adjudicated |
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
- Not regulatedAdjudicated
- H-Codes (Hazard Statements)
- Not applicableECHA C&L Inventory
- P-Codes (Precautionary Statements)
- Not applicableECHA C&L Inventory
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 15 mg/m³ TWA total / 5 mg/m³ TWA respirableOSHA 29 CFR 1910.1000
- ACGIH TLV
- 10 mg/m³ TWA (mist)Adjudicated
- NIOSH REL
- 5 mg/m³ TWA (mist)NIOSH Pocket Guide
- 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.
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 12,600 mg/kg (rat)Adjudicated
- LD₅₀ Dermal (rabbit)
- > 10,000 mg/kgAdjudicated
Acute toxicology values from SDS Section 11 or NIOSH RTECS.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Glycerin USP Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Pharmaceutical-grade glycerin used in food, personal care, cosmetic, pharmaceutical and other specialty applicationsc1-preview.prosites.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 tightly closed (hygroscopic) in a dry place away from strong oxidizers. Stainless steel, aluminum or polyethylene containers.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 (violent reaction with potassium permanganate, chromium trioxide and similar); strong bases.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.
NMFC Class
55
Revision History
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.4 | 2026-10-08 | Canonical data updated: 23 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-09-30 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-08-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 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.