Potassium Sodium Tartrate
Basic information
- CAS
147-79-5- Standard SMILES
O=C([O-])[C@H](O)[C@@H](O)C(=O)[O-].[K+].[Na+]- InChIKey
LJCNRYVRMXRIQR-OLXYHTOASA-L- Molecular formula
- C4.H4.K.Na.O6
- Average molar mass
- 210.16 g/mol
Overview
Potassium sodium L-tartrate is the organic sodium and potassium salt of L-tartaric acid (mol ratio 1:1:1). It has a role as a laxative. It is a potassium salt and an organic sodium salt. It contains a L-tartrate(2-).
Names & identifiers
- Preferred name
- Potassium Sodium Tartrate
- IUPAC
- potassium;sodium;(2R,3R)-2,3-dihydroxybutanedioate
Names & synonyms
Rochelle saltSeignette salt304-59-6SODIUM POTASSIUM TARTRATEMonopotassium monosodium tartrateSodium potassium L-tartratePotassium sodium L(+)-tartratePotassium sodium tartrate anhydrousP49F8NV7ESTartaric acid, monopotassium monosodium salt2,3-Dihydroxybutanedioic acid, monopotassium monosodium saltButanedioic acid, 2,3-dihydroxy-, monopotassium monosodium salt
Show more names
CHEBI:63019DTXSID90889341INS NO.337Potassium sodium dextro-tartrateINS-337E-337Co eff pdrRefChem:570851
Database identifiers
- CAS
147-79-5、15490-42-3、304-59-6、6381-59-5- PubChem CID
- 9357
- DTXSID
DTXSID60932999- ChEBI
CHEBI:63019- UNII
- P49F8NV7ES
- EC Number
- 205-698-2、206-156-8、613-385-0
- Nikkaji
- J2.573I
Properties
Computed structural properties
- Topological polar surface area
- 121 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 1
- Heavy atoms
- 12
- Formal charge
- 0
- Complexity
- 123
Experimental & physicochemical properties
Chemical ClassesMetals -> Organic Acids, Metal Salts
CosmeticsBuffering
pHBetween 6,5 and 8,5 (1 % aqueous solution)
TasteCool, saline taste
Food AdditivesEMULSIFIER OR EMULSIFIER SALT, PH CONTROL AGENT, SEQUESTRANT -> FDA Substance added to food
Density
Density: 1.77 (Air=1)
1.77 @25 °C
Color/Form
COLORLESS CRYSTALS
CRYSTALS ARE OFTEN COATED WITH WHITE POWDER
Solubility
1 gram is soluble in 1 ml of water, insoluble in ethanol
VERY SOLUBLE IN HOT WATER
Insol in alcohol
SOLUBILITY IN WATER: 47.4 G/100 ML AT 6 °C
Boiling Point
200 °C
200 °C @760 [mm Hg]
Melting Point
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 99.6% (234 of 235) of all reports.
Not Classified
Aggregated GHS information provided per 235 reports by companies from 3 notifications to the ECHA C&L Inventory.
This chemical does not meet GHS hazard criteria for 100% (42 of 42) of all reports.
Not Classified
Aggregated GHS information provided per 42 reports by companies from 2 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: Butanedioic acid, 2,3-dihydroxy- [R-(R*,R*)]-, monopotassium monosodium salt
Regulation (EC) No 1333/2008 (amended)
Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, potassium sodium salt (1:1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, potassium sodium salt (1:1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 29-09-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14183
Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodiumsalt: Does not have an individual approval but may be used under an appropriate group standard
Potassium sodium tartrate: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationEvaluation - Chemicals that are unlikely to require further regulation to manage risks to environment
Hazards SummaryGenerally regarded as safe (GRAS) for use in foods; Saline cathartics are contraindicated in a patient with congestive heart failure on a low sodium diet; [HSDB]
FDA Requirements
Chemistry & industry
Uses & manufacturing
Uses
Used as sequestrant and general purpose food additive; Used in mirror production, Fehling's solution, crystal-controlled oscillators, and as saline cathartic; [HSDB]
SEQUESTRANT & GENERAL PURPOSE FOOD ADDITIVE.
FOOD CHEMICAL: EMULSIFIER IN CHEESE, BUFFER IN CONFECTIONS, IN FRUIT JELLY, PRESERVES & JAMS; AS SALINE CATHARTIC; IN MFR OF MIRRORS; CONSTITUENT OF FEHLING'S SOLUTION; IN CRYSTAL-CONTROLLED ELECTRONIC OSCILLATORS.
Emulsifier in cheese
Baking powders; silvering mirrors
MEDICATION
U.S. Production
2023: 50,000 - <75,000 lb
(1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS
(1975) PROBABLY GREATER THAN 4.54X10+5 GRAMS
Consumer UsesProcessing aids not otherwise specified
Industry UsesPlating agent
Methods of Manufacturing
REACTION OF POTASSIUM ACID TARTRATE, WATER, & SODIUM CARBONATE
BY REACTING DOUBLE MOLAR PORTION OF POTASSIUM BITARTRATE WITH HOT SOLN OF SODIUM CARBONATE.
Formulations/Preparations
POTASSIUM SODIUM TARTRATE, NF FOR ORAL ADMIN. MANY MANUFACTURERS MARKET FLAVORED VERSIONS.
GRADES: HIGHEST PURITY, REAGENT; COMMERCIAL CRYSTALS OR POWDER; NATIONAL FORMULARY; "FOOD CHEMICALS CODEX"
Use Classification
Food additives
Food Additives -> SEQUESTRANT; STABILIZER -> JECFA Functional Classes
Food Additives -> SEQUESTRANT; STABILIZER -> JECFA Functional Classes
Food Additives -> SEQUESTRANT; STABILIZER -> JECFA Functional Classes
Cosmetics -> Buffering
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Related reactions
437 records
Compound notes
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