油酸钠

Description

Sodium Oleate · CAS 16558-02-4 · C18H33NaO2. UNII 399SL044HN. Melting Point: 455 °F (USCG, 1999); Melting Point: 232-235 °C.

Identification

CAS Registry Number	16558-02-4
PubChem CID	23665730
Molecular formula	C18H33NaO2
IUPAC name	sodium (Z)-octadec-9-enoate
UNII (FDA)	399SL044HN

Computed Descriptors

Molecular Weight	304.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	15
Exact Mass	304.23782457
Monoisotopic Mass	304.23782457
Topological Polar Surface Area	40.1
Heavy Atom Count	21
Formal Charge	0
Complexity	239

Physical & Chemical Properties

Melting Point	455 °F (USCG, 1999)
Melting Point	232-235 °C

Physical description & handling notes

• Oleic acid, [sodium salt] is a light tan solid with a slight tallow-like odor. Sinks and mixes slowly with water. (USCG, 1999)
• Liquid; Dry Powder; Large Crystals
• White solid; [Merck Index] Light tan solid; [CAMEO]
• WHITE CRYSTALS OR YELLOW AMORPHOUS GRANULES
• WHITE POWDER
• SLIGHT TALLOW-LIKE ODOR

Regulatory Status

Regulatory & Food Contact

FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTICAKING_AGENT; EMULSIFIER: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, STABILIZER OR THICKENER The 1988 group ADI of "not specified" for the calcium, potassium and sodium salts of oleic acid was maintained TRS 776-JECFA 33/25

GHS notification summary

79.9% (417 / 522)

GHS Hazard Classification

GHS notification summary	79.9% (417 / 522)
Reported hazard statements	H412 (20.1%)

Documented Uses

• Used in ore flotation, waterproofing textiles, metal polishes, polymer curing, and veterinary medicine; Used as emulsifier for oil/water systems and in the polymerization of butadiene; [HSDB]
• Plastic Composites Manufacturing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Metal Extraction and Refining [Category: Industry]
• ORE FLOTATION; WATERPROOFING TEXTILES; EMULSIFIER OF OIL/WATER SYSTEMS
• Used as an emulsifier in the polymerization of butadiene

Synonyms

SODIUM OLEATE; 143-19-1; Oleic acid sodium salt; Osteum; Eunatrol; Olate flakes; Sodium 9-octadecenoate, (Z)-; 9-Octadecenoic acid (Z)-, sodium salt; Sodium 9-octadecenoate; CCRIS 1964; HSDB 758; oleate sodium; EINECS 205-591-0; UNII-399SL044HN; 9-Octadecenoic acid (9Z)-, sodium salt; 9-Octadecenoic acid, sodium salt, (Z)-

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium Oleate?

CAS 16558-02-4; molecular formula C18H33NaO2; molecular weight — g/mol.

What other names is Sodium Oleate known by?

SODIUM OLEATE, 143-19-1, Oleic acid sodium salt, Osteum, Eunatrol, Olate flakes.

What is the regulatory status of Sodium Oleate?

Documented regulatory listings: FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION ; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ANTICAKING_AGENT; EMULSIFIER: Food Additives.

Is Sodium Oleate classified as hazardous?

79.9% of GHS notifications report no hazard classification (417 of 522).

What are the key physical properties of Sodium Oleate?

Melting Point: 455 °F (USCG, 1999); Melting Point: 232-235 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.