Industrial chemicals · Taylor, TXTechnical Data Sheet
100% Propylene Glycol Inhibited
Laboratory · 100%
Identity & Composition
- Product Name
- 100% Propylene Glycol Inhibited
- Alliance Code
- 100-propylene-glycol-inhibited
- Grade
- Laboratory
- Concentration
- 100%
- CAS Number
- 57-55-6PubChem
- Formula
- C3H8O2PubChem
- Molecular Weight
- 76.09PubChem
- Product Type
- mixture
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Reserve alkalinity | 9.0 Min ml | 11.5 | ASTM D1121 | Interpreted |
| Propylene Glycol | 95.6 Min WT% | 100.0 WT% | DOWM 101679 | Interpreted |
| Water (Karl Fischer) | 3.5 % max | 1.0 % | ASTM E1064 / Karl Fischer coulometric | Interpreted |
| Chloride (Cl) | ≤ 25 ppm | 0.6 ppm | ASTM D3634 | Interpreted |
| Foaming tendency | Volume ≤ 150 mL; break time ≤ 5 s | Passes test | ASTM D1881 | Interpreted |
| Composition (% by weight) | Propylene Glycol 96 / Performance Additives 4 | Passes test | Formulation | Interpreted |
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 | Thick odorless colorless liquid. Mixes with water. (USCG, 1999) | Published reference |
| Form | Liquid | Published reference |
| Odor | Practically odorless | Published reference |
| pH | 9.5–10.5 | Interpreted |
| Specific Gravity (20 °C) | 1.046 — 1.056 | Interpreted |
| Density | 1.04 at 68 °F (USCG, 1999) - Denser than water; will sink | Published reference |
| Boiling Point | 310 °F (154 °C) | Interpreted |
| Melting Point | below -50 °C (-60 °F) | Interpreted |
| Flash Point | 210 °F (NTP, 1992) | Published reference |
| Vapor Pressure | 0.08 mmHg at 68 °F ; 0.13 mmHg at 77 °F (NTP, 1992) | Published reference |
| Solubility (water) | greater than or equal to 100 mg/mL at 70 °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
- Not regulatedAdjudicated
- H-Codes (Hazard Statements)
- Not applicableECHA CLP Annex VI
- P-Codes (Precautionary Statements)
- Not applicableECHA CLP Annex VI
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 100% Propylene Glycol Inhibited. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Catalog EquivalentsCross-reference vs major chemical suppliers
Sigma-Aldrich
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| 134368 | ReagentPlus | ≥99.5% | Unverified candidate | Sigma ReagentPlus; Alliance is inhibited (corrosion inhibitor). |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
- Used as a heat transfer fluid, including service where incidental food contact is possible (NSF HT1 category)ingredi.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
- Cool, dry, well-ventilated area in tightly sealed original containers. Neat glycols are combustible liquids with high flash points (roughly 99–111 °C) and do not require a solvent store; aqueous blends will not sustain combustion. Protect inhibited coolants from contamination and from freezing below their stated protection point.Class-level guidance — not product-specific; the SDS controls.
- Handling Precautions
- Chemical-resistant gloves and splash goggles. Ethylene glycol grades are toxic by ingestion and must be kept away from food, drink and animals; propylene glycol grades are not. Avoid contact with hot surfaces and hot process equipment. Inhibitor packages deplete in service — monitor rather than top up blindly.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong oxidizers, strong acids and strong bases. Galvanized (zinc) surfaces are attacked by many inhibited coolant packages. Verify elastomer and gasket compatibility for the service temperature; EPDM is standard for glycol/water service.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.
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.