Industrial chemicals · Taylor, TXTechnical Data Sheet
Methanol ACS Reagent Grade
ACS Reagent
- CAS number
- 67-56-1
- UN number
- UN1230
- Hazard class · packing group
- 3 · PG II
- Structure
Structure · PubChem - Grade
- ACS Reagent
- Signal word
- Danger
- Hazards
- Proper shipping name
- Methanol
Identity & Composition
- Product Name
- Methanol ACS Reagent Grade
- Alliance Code
- methanol-acs-reagent-grade
- Grade
- ACS Reagent
- Concentration
- —
- CAS Number
- 67-56-1PubChem
- Formula
- —PubChem
- Molecular Weight
- —PubChem
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay | min. 99.8% | 99.91 % | GC, corrected for water | Interpreted |
| Titrable Acid | max 0.0003 meq/g | 0.000071 meq/g | — | Interpreted |
| Titrable Base | max 0.0002 meq/g | 0.000022 meq/g | — | Interpreted |
| Carbonyl compounds (acetone, formaldehyde, acetaldehyde, each) | ≤ 0.001 % | 0.00022 % | — | Interpreted |
| Color (APHA) | max 10 | 6 | — | Interpreted |
| Substances reducing permanganate | Pass Test | Passes test | — | Interpreted |
| Residue After Evaporation | max. 0.001% | 0.00025 % | — | Interpreted |
| Solubility in Water | To Pass | Passes test | — | Interpreted |
| Substances darkened by sulfuric acid | Pass Test | Passes test | — | Interpreted |
| Ultraviolet Absorption at 205nm | 1.0 max. | 0.69 | — | Interpreted |
| Ultraviolet Absorption at 210nm | 0.80 max. | 0.35 | — | Interpreted |
| Ultraviolet Absorption at 220nm | 0.40 max. | 0.12 | — | Interpreted |
| Ultraviolet Absorption at 230nm | 0.20 max. | 0.040 | — | Interpreted |
| Ultraviolet Absorption at 240nm | 0.10 max. | 0.017 | — | Interpreted |
| Ultraviolet Absorption at 260nm | 0.04 max. | 0.006 | — | Interpreted |
| Ultraviolet Absorption at 280nm – 400nm | 0.01 max. | 0.003 | — | Interpreted |
| Water | max 0.10% | 0.036 % | — | 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 ACS Reagent | — | — | current | current |
| Technical Grade | — | — | methanol-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 | Volatile clear liquid, transparent | Adjudicated |
| Form | Liquid | Published reference |
| Odor | Mild alcohol odor (gives no reliable warning of overexposure) | Adjudicated |
| Specific Gravity | 0.791–0.793 at 20 °C (water = 1) | Adjudicated |
| Density | 0.792 at 68 °F (USCG, 1999) - Less dense than water; will float | Published reference |
| Boiling Point | 64.7 °C (148.5 °F) at 760 mmHg | Adjudicated |
| Melting Point | -98 °C (-144 °F) | Adjudicated |
| Flash Point | 10–11 °C (50–52 °F), closed cup | Adjudicated |
| Vapor Pressure | 128 hPa (96 mmHg) at 20 °C | Adjudicated |
| Vapor Density | 1.1 (air = 1) | Adjudicated |
| Solubility (water) | Completely miscible with water | Adjudicated |
Polar solvent — purity vs. intended end-use (electronics, pharma, general industrial) is the dominant grade consideration. See application guidance for grade selection.
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| HDPE | Compatible | Methanol ACS/HPLC grade, assay min. 99.8% (typical 99.99%), supplied in 20 liter HDPE packaging; source states no upper temperature or exposure-time bound | nwsci.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
- UN123049 CFR 172.101
- Hazard Class
- 3Adjudicated
- Packing Group
- IIAdjudicated
- Proper Shipping Name
- MethanolAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H225, H301, H311, H331, H370Adjudicated
- P-Codes (Precautionary Statements)
- P210, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P307+P311, P308+P311, P311, P312, P321, P330, P361, P370+P378, P403+P233, P403+P235, P405, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 200 ppm TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- 200 ppm TWA / 250 ppm STEL (skin notation)Adjudicated
- NIOSH REL
- 200 ppm TWA / 250 ppm STELNIOSH Pocket Guide
- NIOSH IDLH
- 6000 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.
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 1,187–6,200 mg/kg (rat). Humans are far more sensitive: classification ATE 100 mg/kg (H301).Adjudicated
- LD₅₀ Dermal (rabbit)
- 15,840–17,100 mg/kg (rabbit); classification ATE 300 mg/kg (H311)Adjudicated
- LC₅₀ Inhalation (rat, 4 h)
- 64,000 ppm (rat); classification ATE 3 mg/L vapor (H331)Adjudicated
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 Methanol ACS Reagent 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 |
|---|---|---|---|---|
| 34860 | HPLC | ≥99.9% | Unverified candidate | Honeywell Burdick & Jackson HPLC grade — tighter residue than ACS. |
Sigma-Aldrich
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| 179337 | ACS Reagent | 99.9% | Unverified candidate | ACS Reagent ≥99.9% |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
Laboratory and analytical solvent (ACS reagent): extraction, chromatography and sample preparation.Adjudicated
Restrictions on Use: Toxic: small amounts swallowed can cause permanent blindness or death, and methanol is also absorbed through the skin and by inhalation. Never use as a substitute for ethanol or in anything that could be drunk. For industrial, professional and laboratory use.
Storage & Handling
- Recommended Storage
- Keep containers tightly closed in a cool, dry, well-ventilated flammables area away from heat, sparks, open flame and direct sunlight. Store locked up. Ground and bond containers when transferring.Adjudicated
- Handling Precautions
- Use chemical-resistant gloves and splash goggles. Bond and ground during transfer to prevent static accumulation. Eliminate ignition sources within vapor envelope.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong oxidizing agents and peroxides; strong acids, acid anhydrides and acid chlorides; strong bases; alkali metals; aluminum, zinc and lead (corroded, especially by dry methanol).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)
UN1230, Methanol, 3, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.8 | 2026-10-13 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.7 | 2026-10-08 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.6 | 2026-10-07 | Canonical data updated: 19 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-09-30 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-08-05 | Canonical data updated: 4 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 | 2026-06-18 | 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.