Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Methyl n-Propyl Ketone (MPK) Technical Grade
Technical
- CAS number
- 107-87-9
- UN number
- UN1249
- Hazard class · packing group
- 3 · PG II
- Structure
Structure · PubChem - Grade
- Technical
- Signal word
- Danger
- Hazards
- Proper shipping name
- Methyl propyl ketone
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- Product Name
- Methyl n-Propyl Ketone (MPK) Technical Grade
- Alliance Code
- methyl-n-propyl-ketone-mpk
- Grade
- Technical
- Concentration
- —
- CAS Number
- 107-87-9PubChem
- Formula
- —PubChem
- Molecular Weight
- 86.13PubChem
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (Methyl Propyl Ketone) | 90.00 MIN % | 97.6 % | Gas chromatography | Interpreted |
| Acid as Acetic | 0.0100 MAX % | 0.0031 % | Titration | Interpreted |
| Acidity (as Acetic Acid) | 0.01 wt % max. | 0.0031 wt % | — | Interpreted |
| Color (Pt-Co) | 15 max. | 9 | — | Interpreted |
| Methyl Isobutyl Ketone | 10.00 MAX % | 2.0 % | Gas chromatography | Interpreted |
| Water | 0.0500 MAX % | 0.022 % | — | Interpreted |
| Distillation Range @ 760 mmHg | 100 - 117 °C | 108.2 °C | ASTM D1078 | Interpreted |
| Nonvolatile Matter | 0.005 g/100 mL max. | 0.00045 g/100 mL | ASTM D1353 | 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 Technical | — | — | current | current |
| ACS Grade | 94% | — | methyl-n-propyl-ketone-mpk-acs | 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 | Colorless, volatile liquid with a sweet, fruity odor | Adjudicated |
| Form | Liquid | Published reference |
| Odor | Sweet, acetone-like ketone odor | Adjudicated |
| Specific Gravity | 0.81 at 20–25 °C (water = 1) | Adjudicated |
| Density | 0.809 at 68 °F (USCG, 1999) - Less dense than water; will float | Published reference |
| Boiling Point | 100–105 °C (212–221 °F) | Adjudicated |
| Melting Point | -78 °C (-108 °F) | Adjudicated |
| Flash Point | 7 °C (45 °F), closed cup | Adjudicated |
| Vapor Pressure | 27 mmHg (36 hPa) at 20 °C | Adjudicated |
| Solubility (water) | Slightly soluble in water (about 43 g/L at 20 °C); miscible with most organic solvents | Adjudicated |
| Refractive Index (nD 20) | 1.387 - 1.393 | Interpreted |
| Viscosity | 0.5 mPa·s at 20 °C | 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 ConstructionService envelope ≈ 100%
| 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 |
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 12 of 12 material ratings within 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. |
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
- UN124949 CFR 172.101
- Hazard Class
- 3Adjudicated
- Packing Group
- IIAdjudicated
- Proper Shipping Name
- Methyl propyl ketoneAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H225, H302, H319, H335, H351Adjudicated
- P-Codes (Precautionary Statements)
- P201, P202, P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P312, P330, P337+P313, 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
- 150 ppm STELAdjudicated
- NIOSH REL
- 150 ppm (530 mg/m³) TWAAdjudicated
- NIOSH IDLH
- 1,500 ppmAdjudicated
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)
- 1,600 mg/kg (rat), the basis for H302Adjudicated
- LD₅₀ Dermal (rabbit)
- 6,500 mg/kgAdjudicated
- LC₅₀ Inhalation (rat, 4 h)
- > 25.5 mg/L (vapor, rat, 4 h)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 Methyl n-Propyl Ketone (MPK) Technical Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Active solvent for most synthetic resins, including acrylics, polyesters, cellulosics, epoxies, vinyls and alkydsproductcatalog.eastman.com
- Letdown solvent for high-solids resins used to formulate low-VOC coatingsproductcatalog.eastman.com
- Gravure printing inks, and cleaning and surface preparation for the transportation industryproductcatalog.eastman.com
- Non-HAP solvent alternative to MEK and toluene for aerospace cleaning and pre-treatmentproductcatalog.eastman.com
- Medium-evaporating urethane-grade solventproductcatalog.eastman.com
- Permitted as an inert ingredient in nonfood-use pesticide products under FIFRAproductcatalog.eastman.com
- Used for cleaning and surface preparation in the transportation industry.productcatalog.eastman.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 in a cool, well-ventilated flammables area away from ignition sources, oxidizers and bases. Ground and bond containers.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 bases; reducing agents; amines; isocyanates.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)
UN1249, Methyl propyl ketone, 3, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
NMFC Class
70
Placard
Flammable Liquid
Packing Group
PG II
Revision History
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-08 | Canonical data updated: 6 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-07 | Canonical data updated: 27 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-05 | Canonical data updated: 3 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 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 5 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.