棕榈酸钠

Description

sodium palmitate · CAS 408-35-5 · C16H31NaO2. UNII JQ43KP6296. Melting Point: 270 °C.

Identification

CAS Registry Number	408-35-5
PubChem CID	2735111
Molecular formula	C16H31NaO2
IUPAC name	sodium hexadecanoate
UNII (FDA)	JQ43KP6296

Computed Descriptors

Molecular Weight	278.41
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	14
Exact Mass	278.22217451
Monoisotopic Mass	278.22217451
Topological Polar Surface Area	40.1
Heavy Atom Count	19
Formal Charge	0
Complexity	184

Physical & Chemical Properties

Melting Point	270 °C

Physical description & handling notes

• Dry Powder; Liquid
• White to yellow solid; [Hawley] White powder; [MSDSonline]
• WHITE CRYSTALS
• White to yellow powder
• INSOL IN WATER, SPARINGLY SOL IN COLD ALC /PALMITIC ACID/
• FREELY SOL IN HOT ALC, ETHER, CHLOROFORM /PALMITIC ACID/

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, FORMULATION AID, LUBRICANT OR RELEASE AGENT ANTICAKING_AGENT; EMULSIFIER: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, FORMULATION AID, LUBRICANT OR RELEASE AGENT, STABILIZER OR THICKENER NOT SPECIFIED TRS 733-JECFA 29/15,23 FAS 5/NMRS 53A-JECFA 17/19 (1973)
GHS notification summary	76.7% (125 / 163)

GHS Hazard Classification

GHS notification summary	76.7% (125 / 163)
Reported hazard statements	H319 (23.3%)

Documented Uses

• CIR ingredient: Sodium Palmitate
• Used as polymerization catalyst (synthetic rubbers) and emulsifier; Used in laundry and toilet soaps, detergents, cosmetics, pharmaceuticals, and printing inks; [Hawley]
• Polymerization catalyst for synthetic rubbers, laundry and toilet soaps; detergents; cosmetics; pharmaceuticals; printing inks; as an emulsifier.
• EPA Safer Chemical Functional Use Classes -> Surfactants
• Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
• Food Additives -> ANTICAKING_AGENT; EMULSIFIER -> JECFA Functional Classes

Synonyms

SODIUM PALMITATE; 408-35-5; Palmitic acid sodium salt; Sodium hexadecanoate; Hexadecanoic acid, sodium salt; Palmitic acid, sodium salt; Sodium pentadecanecarboxylate; C-LUBE 16; JQ43KP6296; Hexadecanoic acid, sodium salt (1:1); DTXSID2041127; Palmitate, Sodium; RefChem:184052; DTXCID0021127; 206-988-1; sodium;hexadecanoate

Frequently Asked Questions

What are the CAS number and molecular formula of sodium palmitate?

CAS 408-35-5; molecular formula C16H31NaO2; molecular weight — g/mol.

What other names is sodium palmitate known by?

SODIUM PALMITATE, 408-35-5, Palmitic acid sodium salt, Sodium hexadecanoate, Hexadecanoic acid, sodium salt, Palmitic acid, sodium salt.

What is the regulatory status of sodium palmitate?

Documented regulatory listings: FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, FORMULATION AID, LUBRICANT OR RELEASE AGENT; ANTICAKING_AGENT; EMULSIFIER: Food Additives; ANTICAKING AGENT OR FREE-FLOW AGENT, FORMULATION AID, LUBRICANT OR RELEASE AGENT, STABILIZER OR THICKENER.

Is sodium palmitate classified as hazardous?

76.7% of GHS notifications report no hazard classification (125 of 163).

What are the key physical properties of sodium palmitate?

Melting Point: 270 °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.