酒石酸钠

Description

Sodium Tartrate · CAS 868-18-8 · C4H4Na2O6. UNII QTO9JB4MDD. Melting Point: 120.

Identification

CAS Registry Number	868-18-8
PubChem CID	162637
Molecular formula	C4H4Na2O6
IUPAC name	disodium;(2R,3R)-2,3-dihydroxybutanedioate
UNII (FDA)	QTO9JB4MDD

Computed Descriptors

Molecular Weight	194.05
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	1
Exact Mass	193.98032641
Monoisotopic Mass	193.98032641
Topological Polar Surface Area	121
Heavy Atom Count	12
Formal Charge	0
Complexity	123

Physical & Chemical Properties

Melting Point	120

Physical description & handling notes

• Transparent, colourless crystals
• Dihydrate: White solid; [Merck Index] Colorless odorless solid; [JECFA] White crystals with no odor to a slight tartaric odor; [Mallinckrodt Baker MSDS]
• Soluble in cold water
• 1 gram is insoluble in 3 ml of water. Insoluble in ethanol
• Between 7,0 and 7,5 (1 % aqueous solution)

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: EMULSIFIER OR EMULSIFIER SALT, PH CONTROL AGENT, SEQUESTRANT SEQUESTRANT; STABILIZER: Food Additives SODIUM L(+)-TARTRATE JECFA ADI: 0-30 mg/kg bw Expressed as L(+)-tartaric acid NMRS 53/TRS 539-JECFA 17/24
GHS notification summary	77.4% (161 / 208)

GHS Hazard Classification

GHS notification summary	77.4% (161 / 208)
Reported hazard statements	H302 (22.6%)

Documented Uses

• Food Additives -> SEQUESTRANT; STABILIZER -> JECFA Functional Classes
• Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, sodium salt (1:2): ACTIVE
• Butanedioic acid, 2,3-dihydroxy-, sodium salt (1:2), (2R,3R)-rel-: INACTIVE
• It acts as an emulsifier and pH control agent in food products,. In the laboratory, it is used while performing the Karl Fischer equation, which is used to determine the water content of various substances,.
• A - Alimentary tract and metabolism
• A06AD - Osmotically acting laxatives

Synonyms

Sodium tartrate; Sodium L-tartrate; Disodium tartrate; 868-18-8; Bisodium tartrate; Disodium L-(+)-tartrate; Sal tartar; TARTARIC ACID, DISODIUM SALT; Sodium L-(+)-tartrate; QTO9JB4MDD; INS NO.335(II); INS-335(II); E-335(II); DTXSID2057861; CHEBI:63017; RefChem:887917

Frequently Asked Questions

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

CAS 868-18-8; molecular formula C4H4Na2O6; molecular weight — g/mol.

What other names is Sodium Tartrate known by?

Sodium tartrate, Sodium L-tartrate, Disodium tartrate, 868-18-8, Bisodium tartrate, Disodium L-(+)-tartrate.

What is the regulatory status of Sodium Tartrate?

Documented regulatory listings: FDA Substance added to food: EMULSIFIER OR EMULSIFIER SALT, PH CONTROL AGENT, SEQUESTRANT; SEQUESTRANT; STABILIZER: Food Additives; SODIUM L(+)-TARTRATE.

Is Sodium Tartrate classified as hazardous?

77.4% of GHS notifications report no hazard classification (161 of 208).

What are the key physical properties of Sodium Tartrate?

Melting Point: 120.

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.