Industrial chemicals · Taylor, TXTechnical Data Sheet
Isopropyl Alcohol 99.9% ACS Reagent Grade
ACS Reagent · 99.9%
Identity & Composition
- Product Name
- Isopropyl Alcohol 99.9% ACS Reagent Grade
- Alliance Code
- isopropyl-alcohol-99-9-acs-reagent-grade
- Grade
- ACS Reagent
- Concentration
- 99.9%
- CAS Number
- 67-63-0PubChem
- Formula
- C3H8OPubChem
- Molecular Weight
- 60.10PubChem
- Product Type
- solution
- IUPAC Name
- propan-2-olPubChem
- InChI-Key
- KFZMGEQAYNKOFK-UHFFFAOYSA-NPubChem
- SMILES
- CC(C)OPubChem
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (CH3CHOHCH3) | >= 99.5 % | 99.9 % | — | ACS Reagent Chemicals |
| Titrable acid or base | max. 0.0001 meq/g | 0.00002 meq/g | — | ACS Reagent Chemicals |
| Titrable Base | <= 0.0001 meq/g | 0.00003 meq/g | — | ACS Reagent Chemicals |
| Carbonyl compounds (as acetone) | max. 0.002 % | 0.0003 % | — | ACS Reagent Chemicals |
| Residue after Evaporation | <= 0.001 % | 0.0002 % | — | ACS Reagent Chemicals |
| Solubility in H2O | Passes Test | Passes test | — | ACS Reagent Chemicals |
| Water (H2O) | <= 0.2 % | 0.04 % | Karl Fischer titrn | ACS Reagent Chemicals |
| Substances darkened by sulfuric acid | Passes test | Passes test | ACS monograph test - shake with H2SO4, compare acid layer | Interpreted |
| Identification (Infrared Absorption) | Conforms to structure | Passes test | FTIR-ATR, comparison to reference spectrum | 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.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade ACS Reagent | 99.9% | — | current | current |
| Technical | 99% | — | isopropyl-alcohol-99 | View TDS → |
| USP Grade | 70% | — | isopropyl-alcohol-70-usp-grade | View TDS → |
| Technical | 60% | — | isopropyl-alcohol-60-technical-grade | View TDS → |
| USP | 60% | — | isopropyl-alcohol-60-usp-grade | View TDS → |
| Technical | 50% | — | isopropyl-alcohol-50-technical-grade | View TDS → |
| USP | 50% | — | isopropyl-alcohol-50-usp-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
One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.
| Property | Value | Source |
|---|---|---|
| Form | Liquid | Published reference |
| Color | <= 10 | ACS Reagent Chemicals |
| Odor | Pleasant odor | Published reference |
| Density | 0.785 - 0.786 g/ml | Supplier specification |
| Boiling Point | 82.8 °C max | Supplier specification |
| Melting Point | -127.3 °F (NTP, 1992) | Published reference |
| Flash Point | 53 °F (NTP, 1992) | Published reference |
| Vapor Pressure | 33 mmHg at 68 °F ; 40 mmHg at 74.8 °F (NTP, 1992) | Published reference |
| Solubility (water) | greater than or equal to 100 mg/mL at 72 °F (NTP, 1992) | Published reference |
| Refractive Index (nD 20) | 1.376 - 1.378 | Supplier specification |
Polar solvent — purity vs. intended end-use (electronics, pharma, general industrial) is the dominant grade consideration. See application guidance for grade selection.
Property Curves
Reference curves drawn from public engineering data. For engineering use, consult the cited source for the underlying tabulated values.
Materials of ConstructionService envelope ≈ 99.9%
| Material | Rating | Max T (°C) | Notes | Source |
|---|---|---|---|---|
Buna-N (NBR) elastomer | Fair | 60 | Acceptable for alcohols; poor for ketones. | Parker O-ring Chemical Compatibility |
EPDM elastomer | Fair | — | Good for alcohols, poor for esters | Cole-Parmer Chemical Compatibility |
Viton (FKM) elastomer | Fair | 80 | Swells in acetone and esters; avoid for those. | Parker O-ring Chemical Compatibility |
FFKM (Kalrez) fluoropolymer | Excellent | 200 | Premium ester / ketone sealing | Cole-Parmer Chemical Compatibility |
PTFE fluoropolymer | Excellent | 200 | Universal solvent compatibility. | Cole-Parmer Chemical Compatibility |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert. | Cole-Parmer Chemical Compatibility |
Glass (borosilicate) glass ceramic | Excellent | 100 | Inert | Cole-Parmer Chemical Compatibility |
316L Stainless Steel metal | Excellent | 80 | Inert; preferred for high-purity solvent service. | Cole-Parmer Chemical Compatibility |
Aluminium metal | Good | 40 | Acceptable; avoid prolonged wet contact | Cole-Parmer Chemical Compatibility |
Carbon Steel metal | Fair | 50 | Trace moisture causes rust; flash-rust prevention required. | Cole-Parmer Chemical Compatibility |
HDPE thermoplastic | Fair | 40 | Swells with many polar solvents; verify per solvent. | Cole-Parmer Chemical Compatibility |
PP thermoplastic | Good | 50 | Acceptable but watch swelling with esters | Cole-Parmer Chemical Compatibility |
PVC thermoplastic | Fair | 25 | Esters soften PVC; avoid for esters | Cole-Parmer Chemical Compatibility |
Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.
Materials Selection Tool
Showing 13 of 13 materials compatible at the selected envelope.
| Material | Rating | Max T (°C) | Notes |
|---|---|---|---|
Buna-N (NBR) elastomer | Fair | 60 | Acceptable for alcohols; poor for ketones. |
EPDM elastomer | Fair | — | Good for alcohols, poor for esters |
Viton (FKM) elastomer | Fair | 80 | Swells in acetone and esters; avoid for those. |
FFKM (Kalrez) fluoropolymer | Excellent | 200 | Premium ester / ketone sealing |
PTFE fluoropolymer | Excellent | 200 | Universal solvent compatibility. |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert. |
Glass (borosilicate) glass ceramic | Excellent | 100 | Inert |
316L Stainless Steel metal | Excellent | 80 | Inert; preferred for high-purity solvent service. |
Aluminium metal | Good | 40 | Acceptable; avoid prolonged wet contact |
Carbon Steel metal | Fair | 50 | Trace moisture causes rust; flash-rust prevention required. |
HDPE thermoplastic | Fair | 40 | Swells with many polar solvents; verify per solvent. |
PP thermoplastic | Good | 50 | Acceptable but watch swelling with esters |
PVC thermoplastic | Fair | 25 | Esters soften PVC; avoid for esters |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN1219Adjudicated
- Hazard Class
- 3Adjudicated
- Packing Group
- IIAdjudicated
- Proper Shipping Name
- Isopropanol or isopropyl alcoholAdjudicated
GHS / OSHA HazCom 2012
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H225, H319, H336ECHA CLP Annex VI
- P-Codes (Precautionary Statements)
- P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P312, P337+P313, P370+P378, P403+P233, P403+P235, P405, P501ECHA CLP Annex VI
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 400 ppm TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- —no canonical
- NIOSH REL
- 400 ppm TWA / 500 ppm STELNIOSH Pocket Guide
- NIOSH IDLH
- 2000 ppmNIOSH Pocket Guide
Regional Classifications
- EC Number (EU EINECS)
- 200-661-7Web SDS consensus
- REACH SVHC
- Not listedWeb SDS consensus
- California Prop 65
- Not listedWeb SDS consensus
- WGK Water Hazard (DE)
- 1Web SDS consensus
- TDG Classification (Canada)
- un1219, class 3, pg iiWeb SDS consensus
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.
Health & Fire Hazard
NFPA 704
- Health:1Web SDS consensus
- Fire:3Web SDS consensus
- Reactivity:0Web SDS consensus
- Specific: —
HMIS III
Acute Toxicology
- LD₅₀ Oral (rat)
- 5045 mg/kgWeb SDS consensus
- LD₅₀ Dermal (rabbit)
- 12800 mg/kgWeb SDS consensus
- LC₅₀ Inhalation (rat, 4 h)
- 16000 ppmWeb SDS consensus
NFPA 704 ratings 0 (no hazard) – 4 (severe hazard) per NFPA 704 standard. HMIS III ratings 0 – 4 per the American Coatings Association. 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 Isopropyl Alcohol 99.9% 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 |
|---|---|---|---|---|
| 277-1 | HPLC | ≥99.9% | Close | Honeywell HPLC grade; tighter residue spec than ACS. |
Sigma-Aldrich
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| 190764 | ACS Reagent | 99.5% | Exact | ACS Reagent ≥99.5% |
ThermoFisher
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| A416-4 | ACS | 99.5% | Exact | Optima LC/MS grade equivalent |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
- Commercial manufacturing, laboratory or research use; may be used as an excipient or process solvent for pharmaceutical purposes (not as an active drug ingredient, medical device, or disinfectant)chemsavers.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, well-ventilated flammable-liquid storage area. Tightly sealed original containers. Segregate from oxidizers and acids. Bond and ground bulk storage.Class-level guidance — not product-specific; the SDS controls.
- 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 oxidizers, strong acids, isocyanates, anhydrides. Hygroscopic — protect from atmospheric moisture for water-sensitive end uses.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)
UN1219, Isopropanol or isopropyl alcohol, 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, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.2 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-06-18 | Canonical data re-verified: 25 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.