Technical Data Sheet

Polyethylene Glycol 200 (PEG)

Technical

CAS Number: 25322-68-3
Alliance Code: polyethylene-glycol-200-peg
Generated: 2026-08-31
Revision: 1.1
Reviewed: 2026-06-17 · Andre Taki

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2D chemical structure of Polyethylene Glycol 200 (PEG) — Structure · PubChem

Last reviewed 2026-06-17 by Andre Taki, DOT Hazmat Specialist.

Identity & Composition

Product Name: Polyethylene Glycol 200 (PEG)
Alliance Code: polyethylene-glycol-200-peg
Grade: Technical
Concentration: —
CAS Number: 25322-68-3Adjudicated
Formula: H(OCH2CH2)nOHAlliance SDS
Molecular Weight: 200 g/molAlliance SDS
Product Type: pure_substance

Specifications

Not yet characterized — Specification limits for this product have not been published yet. Contact Technical Services for the current specification; lot-specific certificates ship with every order.

Available GradesSame CAS, alternate grades and concentrations

Grade	Concentration	Typical Assay	SKU	TDS
This grade Technical	—	—	current	current
Technical	—	—	polyethylene-glycol-200-peg-200-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	Clear viscous liquid, pale transparent fluid	Published reference
Form	Liquid	Published reference
Boiling Point	287	Published reference
Melting Point	4	Published reference
Flash Point	232	Published reference
Solubility (water)	Highly soluble in water, most organic solvents	Published reference

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	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

Concentration (% w/w): 50%

Temperature (°C): 20

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: 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): —no canonical
P-Codes (Precautionary Statements): —no canonical

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 Polyethylene Glycol 200 (PEG). Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Application Guidance

Polyethylene Glycol 200 (PEG) (Technical) is a polar solvent. Grade selection (technical, ACS, electronics, USP) determines acceptable residue and impurity levels for the intended end-use.

Cleaning and degreasing (technical-grade)
Coatings, inks, and adhesives formulation
Reaction solvent for chemical synthesis
Pharmaceutical manufacturing (USP-grade)
Electronics-grade cleaning and rinse applications

Flammable. Bond and ground equipment during transfer. Verify grade matches end-use specification before substitution.

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)

Not regulated for transport.

Confirm against shipping documents and carrier requirements before tender.

NMFC Class

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: 4 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). casNumber· canonical adjudication / reground (coa.data_provenance) countryOfOrigin· canonical adjudication / reground (coa.data_provenance) dotSubsidiaryHazardClass· canonical adjudication / reground (coa.data_provenance) hsCode· canonical adjudication / reground (coa.data_provenance)	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.