Does PEG 600 Dioleate have one fixed molecular formula or a single purity value?

No. It is a commercial PEG-ester distribution made from nominal PEG 600 and oleic acid. Product comparison should use acid value, saponification value, hydroxyl value, water, iodine value where relevant, and the method-specific physical data on the offered grade.

Can PEG 600 Dioleate be replaced directly with PEG 400 Dioleate?

Not automatically. Compare PEG-chain distribution, acid, saponification and hydroxyl values, water, physical form, dispersion behavior and performance in the complete formulation. A shared CAS family does not make the grades interchangeable.

PEG 600 Dioleate (Polyethylene Glycol Dioleate) CAS 9005-07-6

PEG 600 Dioleate (CAS 9005-07-6, EC/List 618-407-2) is a commercial nonionic ester surfactant produced from nominal PEG 600 and oleic acid. PEG 400 Dioleate is a related grade with a lower nominal PEG chain length; selection should follow the offered specification. The grade contains a distribution of polyethylene-glycol chain lengths and ester species, so it has no single fixed molecular formula and should not be described by a single 99% purity value. It is used as an emulsifier, lubricant, dispersing aid and defoamer component in metalworking fluids, textile processing, paper, coatings, polymer and agrochemical formulations. Buyers should match acid value, saponification value, hydroxyl value, water, appearance, iodine value, HLB or dispersion behavior and application performance against the current TDS and batch COA.

CAS: 9005-07-6
Synonyms: PEG 600 Dioleate; Polyethylene glycol 600 dioleate; Polyethylene glycol dioleate; Polyoxyethylene dioleate; O,O'-Dioleoyl polyethylene glycol; PEG fatty-acid diester
Einecs: 618-407-2
Molecular Formula: General average structure C36H66O3(C2H4O)n, where n is distributed according to the PEG grade; mixture of chain lengths and ester species with no single fixed molecular formula.
Grade: Confirm the commercial grade code, ester composition, acid, hydroxyl and saponification values, water and physical form against the current TDS and COA.
Package: State required quantity, physical form and destination; confirm the current bag or container, liner, net weight, temperature handling and transport requirements before quotation.

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Product Description

1 Technical Specifications

2 Applications

3 Storage

4 Safety / Regulatory

Technical Specifications

Property	Specification
Identity	Polyethylene glycol dioleate distribution made with nominal PEG 600; CAS 9005-07-6; EC/List 618-407-2.
Specification basis	Distribution of PEG chain lengths and ester species controlled by grade properties and batch COA, not fixed formula or 99% single-compound purity.
Key controls	Acid, saponification and hydroxyl values, water, appearance, iodine value, HLB or dispersion behavior and application performance.
Dispersion and compatibility	Water behavior depends on PEG distribution, ester profile, temperature and formulation; verify in the buyer's actual system and do not state blanket water solubility.

Applications

Emulsifier and lubricant in metalworking fluids. Textile processing and fiber-lubricant formulations. Paper, coating and polymer additive systems. Agrochemical emulsification or dispersion after compatibility testing.

For a related polyethylene glycol dioleate molecular-weight grade, see PEG 400 Dioleate.

Storage

Keep tightly closed in the original compatible container in a cool, dry, ventilated place, protected from moisture, contamination, excessive heat, direct sunlight and strong oxidants. Follow the current supplier TDS/SDS and the shelf-life conditions stated for the delivered lot; do not assume a fixed two-year shelf life.

Safety / Regulatory

Review the current supplier SDS before handling; use suitable gloves and eye protection, control spills and follow local transport, wastewater and disposal rules. Suitability for cosmetic, food-contact or other regulated uses depends on the specifically offered grade and documentation and must not be inferred from the generic name. Waste classification is case-specific, not automatically hazardous.

FAQ - Technical & Supply Chain

Q:
Does PEG 600 Dioleate have one fixed molecular formula or a single purity value?

A: No. It is a commercial PEG-ester distribution made from nominal PEG 600 and oleic acid. Product comparison should use acid value, saponification value, hydroxyl value, water, iodine value where relevant, and the method-specific physical data on the offered grade.
Q:
Can PEG 600 Dioleate be replaced directly with PEG 400 Dioleate?

A: Not automatically. Compare PEG-chain distribution, acid, saponification and hydroxyl values, water, physical form, dispersion behavior and performance in the complete formulation. A shared CAS family does not make the grades interchangeable.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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