Industrial chemicals · Taylor, TX
Technical Data Sheet

Technical Data Sheet

Perchloroethylene (PCE, PERC)

Technical

CAS Number
127-18-4
Alliance Code
perchloroethylene-pce-perc
Generated
2026-08-31
Revision
1.3
Reviewed
2026-07-17 · Andre Taki
2D chemical structure of Perchloroethylene (PCE, PERC)
Structure · PubChem
Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.

Identity & Composition

Product Name
Perchloroethylene (PCE, PERC)
Alliance Code
perchloroethylene-pce-perc
Grade
Technical
Concentration
CAS Number
127-18-4PubChem
Formula
C2Cl4PubChem
Molecular Weight
165.8PubChem
Product Type
pure_substance

Specifications

TestSpecificationTypicalMethodSource
Assay (Perchloroethylene, stabilizer-free basis)99.9 % by weight min.99.95 % by weightSupplier specification
Acid acceptance (as NaOH)0.20 % by weight min.0.28 % by weightSupplier specification
Soluble chloride1.0 ppm max.0.1 ppmSupplier specification
Copper corrosionPasses TestPasses testSupplier specification
Free chlorineNonePasses testSupplier specification
Free halogensPasses TestPasses testASTM D 4755Supplier specification
Acidity-Alkalinity (pH)8.0 - 9.0 pH8.5Supplier specification
Non-volatile residue25 ppm max.4 ppmSupplier specification
Spot or cleanlinessNo spot or stainPasses testSupplier specification
Water (H2O)30 ppm max.12 ppmSupplier specification

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

PropertyValueSource
AppearanceClear, No SedimentSupplier specification
FormLiquidPublished reference
Color15 Pt-Co max.Supplier specification
OdorCharacteristic ethereal, no foreign odorInterpreted
Specific Gravity (20 °C)1.623 - 1.628Supplier specification
Density1.63 at 68 °F (USCG, 1999) - Denser than water; will sinkPublished reference
Boiling Point120.0 - 122.0 °CSupplier specification
Melting Point-2 °F (NTP, 1992)Published reference
Flash PointNo flash point in conventional closed tester.Published reference
Vapor Pressure14 mmHg at 68 °F ; 15.8 mmHg at 72 °F (NTP, 1992)Published reference
Solubility (water)less than 0.1 mg/mL at 63 °F (NTP, 1992)Published reference

Materials of Construction

MaterialRatingConditionsSource
stainless steelCompatibleneat perchloroethylene as shipped in bulk; source states no concentration or temperature limitoxychem.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
UN1897Adjudicated
Hazard Class
6.1Adjudicated
Packing Group
IIIAdjudicated
Proper Shipping Name
TetrachloroethyleneAdjudicated

GHS / OSHA HazCom 2012

Signal Word
DangerAdjudicated
H-Codes (Hazard Statements)
H315, H317, H319, H336, H351, H370, H373, H411Adjudicated
P-Codes (Precautionary Statements)
P201, P202, P260, P264, P270, P273, P280, P281, P308+P311, P308+P313, P314, P391, P405, P501Adjudicated

Occupational Exposure Limits

OSHA PEL (29 CFR 1910.1000)
100 ppm TWA / 200 ppm acceptable ceiling / 300 ppm 5-min peakOSHA 29 CFR 1910.1000
ACGIH TLV
no canonical
NIOSH REL
Ca (carcinogen — minimize occupational exposure)NIOSH Pocket Guide
NIOSH IDLH
150 ppmNIOSH Pocket Guide

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 Perchloroethylene (PCE, PERC). Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Applications

  • Supplied as an all-purpose / degreasing solvent grade of perchloroethylenewestlake.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 original sealed containers. Refer to product SDS for material-specific guidance.Class-level guidance — not product-specific; the SDS controls.
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
Consult the SDS for material-specific incompatibilities.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)

UN1897, Tetrachloroethylene, 6.1, PG III

Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.

NMFC Class
70
Placard
Toxic
Packing Group
PG III

Revision History

Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.

VersionDateChangeTrigger
1.32026-07-22Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
  • dotSubsidiaryHazardClass· canonical change (coa.data_provenance / adjudication)
  • dotProperShippingName· canonical change (coa.data_provenance / adjudication)
canonical_change
1.12026-07-17Canonical data re-verified: 6 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).
  • countryOfOrigin· canonical adjudication / reground (coa.data_provenance)
  • ghsClassification· canonical adjudication / reground (coa.data_provenance)
  • hazard_h_codes· canonical adjudication / reground (coa.data_provenance)
  • hazard_p_codes· canonical adjudication / reground (coa.data_provenance)
  • hsCode· canonical adjudication / reground (coa.data_provenance)
  • signalWord· canonical adjudication / reground (coa.data_provenance)
canonical_change
1.22026-07-17Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
  • ghsClassification· canonical change (coa.data_provenance / adjudication)
  • hazard_h_codes· canonical change (coa.data_provenance / adjudication)
  • hazard_p_codes· canonical change (coa.data_provenance / adjudication)
  • signalWord· canonical change (coa.data_provenance / adjudication)
canonical_change
1.02026-05-20Initial 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.