6106-24-7

Basic information

• Product Name: Disodium tartrate dihydrate
• Synonyms: SODIUM TARTRATE-2-HYDRATE EXTRA PURE, E 335;SODIUM L-TARTRATE DIHYDRATE 99+% &;L-TARTARIC ACID, DISODIUM SALT DIHYDRATE , 99+%, A.C.S. REAGENT;SODIUM TARTRATE-2-HYDRATE R. G., REAG. A CS;SODIUM TARTRATE DIHYDRATE SIGMAULTRA;HYDRANAL-STANDARD SODIUM TARTRATE-2-HYDR ATE, PRIMARY STANDARD;HYDRANALStandard sodium tartrate dihydrate traceable to NIST SRM 2890;Sodium(+)TartrateGr(Dihydrate)
• CAS NO: 6106-24-7
• Molecular Formula: C₄H₄O₆*2H₂O*2Na
• Molecular Weight: 230.08
• EINECS: 212-773-2
• Product Categories: Carboxylic Acid Salts;Biochemicals and Reagents;Building Blocks;Carbonyl Compounds;Chelators;Chemical Synthesis;Organic Building Blocks
• Mol File: 6106-24-7.mol
• Article Data: 0

Chemical Properties

• Melting Point: 150°C -2H₂O
• Boiling Point: 399.3 °C at 760 mmHg
• Flash Point: 209.4 °C
• Appearance: White or colorless/Powder/Solid
• Density: 1,82 g/cm3
• Storage Temp.: Store at room temperature.
• Solubility: H2O: 0.1 M at 20 °C, clear, colorless
• Water Solubility: 290 g/L (20 ºC)
• Stability: Stable. Incompatible with strong oxidizing agents.
• Merck: 14,8684
• BRN: 6121732
• CAS DataBase Reference: Disodium tartrate dihydrate(CAS DataBase Reference)
• NIST Chemistry Reference: Disodium tartrate dihydrate(6106-24-7)
• EPA Substance Registry System: Disodium tartrate dihydrate(6106-24-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 24/25-36-26
• WGK Germany: 3
• RTECS: WW8150000
• TSCA: Yes
• Hazardous Substances Data: 6106-24-7(Hazardous Substances Data)

Usage

Description

Disodium tartrate dihydrate is a white crystalline powder with a water content of 15.66%, determined by the technique of loss on drying at 150°C. It is prepared from high-purity reagents and analyzed in an ISO/IEC 17025 and ISO 17034 accredited calibration laboratory.

Uses

Used in Analytical Chemistry:
Disodium tartrate dihydrate is used as a standardization agent for the Karl Fischer reagent, which is essential for determining trace amounts of water (less than 1%) in various samples.
Used in Food Industry:
As the sodium salt of L-(+)-tartaric acid, disodium tartrate dihydrate is found naturally in berries, grapes, and various wines. It is used as a preservative and flavoring agent, providing antioxidant properties and contributing to the sour taste in these products.
Used in Material Science:
Sodium L-tartrate dibasic dihydrate may be used in the preparation of solid-state M–L compounds (M = bivalent metal ions such as Mn, Fe, Co, Ni, Cu, Zn; L = tartrate). It is also utilized in the preparation of copper (II) and cobalt (II) tartrate complexes by reacting with the corresponding metal salts. These complexes can undergo thermal decomposition to form Cu and Co metal oxide nanoparticles.

Purification Methods

It crystallises from warm dilute aqueous NaOH on cooling. [Beilstein 3 H 524.]

InChI:InChI:1S/C4H6O6.2Na.2H2O/c5-1(3(7)8)2(6)4(9)10;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;2*1H2/q;2*+1;;/p-2

Synthetic route

sodium ammonium tartrate tetrahydrate (20199-92-2, 36989-93-2, 128083-11-4) → (R,R)-tartrate-derived diammonium salt + Lg-tartaric acid ; disodium tartrate (6106-24-7)

Conditions	Yield
byproducts: H2O; 58-59°C;
byproducts: H2O; 58-59°C;

sodium ammonium tartrate tetrahydrate (20199-92-2, 36989-93-2, 128083-11-4) → Lg-tartaric acid ; disodium tartrate (6106-24-7)

Conditions	Yield
In not given byproducts: NH4 d-tatrate; reaction at 59 °C;; pptn. from the hot soln.;
In not given byproducts: NH4 d-tatrate; reaction at 59 °C;; pptn. from the hot soln.;

rochelle salt (6381-59-5) → Lg-tartaric acid ; disodium tartrate (6106-24-7)

Conditions	Yield
In not given byproducts: K d-tatrate; reaction at 55 °C;;
In not given byproducts: K d-tatrate; reaction at 55 °C;;

rochelle salt (6381-59-5) → d-K2C4H4O6*0.5H2O + Lg-tartaric acid ; disodium tartrate (6106-24-7)

Conditions	Yield
Kinetics; byproducts: water;
In water above 55°C;
Kinetics; byproducts: water;

L-Tartaric acid (87-69-4) + sodium carbonate (497-19-8) → Lg-tartaric acid ; disodium tartrate (6106-24-7)

Conditions	Yield
In not given neutralization of the acid with Na2CO3;;
In not given neutralization of the acid with Na2CO3;;

Λ-[Co((S,S)-1,2-diphenylethylenediamine)3]3+2Cl−B(3,5-C6H3(CF3)2)4·2H2O + Lg-tartaric acid ; disodium tartrate (6106-24-7) → C32H12BF24(1-)*C4H4O6(2-)*C42H48CoN6(3+)

Conditions	Yield
With sodium hydroxide In dichloromethane; water at 20℃;	98%

L-Tartaric acid (87-69-4) + mer(5,5)-[Co(ethylenediamine)(N-(2-aminoethyl)aspartato)]ClO4*0.5H2O (89255-05-0) + Lg-tartaric acid ; disodium tartrate (6106-24-7) → (-)589-Λ-mer(5,5)-[Co(ethylenediamine)((R)-N-(2-aminoethyl)aspartato)](+)589-(H)tartrate (89361-10-4)

Conditions	Yield
In water to soln. of Co complex in hot (80°C) water added Na tartrate andtartaric acid, left at room temp. overnight; crystals recrystd. from preheated boiling water followed by cooling to 0°C, washed with MeOH and ether, dried in air; elem. anal.;

[Ni((CH3)6C10H18N4)](2+)*2Br(1-)=[Ni((CH3)6C10H18N4)]Br2 + sodium perchlorate + Lg-tartaric acid ; disodium tartrate (6106-24-7) → 2Ni(2+)*2(CH3)6C10H18N4*OC(O)C(O)O(2-)*2ClO4(1-)=[(Ni((CH3)6C10H18N4))2(OC(O)C(O)O)](ClO4)2 + [(Ni((CH3)6C10H18N4))2(OC(O)CH(OH)CH(OH)C(O)O)(H2O)](2+)*2ClO4(1-)*2H2O + 2Ni(2+)*2(CH3)6C10H18N4*OC(O)C(O)O(2-)*2ClO4(1-)*H2O=[(Ni((CH3)6C10H18N4))2(OC(O)C(O)O)](ClO4)2*H2O

Conditions

Yield

With Na2C2O4; NaOH; HClO4 In water dissolving of starting Ni complex in water at 25°C, portionwise addn. of sodium d-tartrare dihydrate soln. in minimum amt. of water, after 30 min addn. of NaClO4 in minimun amt. of water, excess NaClO4 gives less optically pure product; chilling in ice bath for 1 h, filtration, washing with chilled H2O, C2H5OH and ether, recrystn. (CH3CN), addn. to filtrate of Na2C2O4, NaClO4, then aq. NaOH to pH 10, filtration, addn. of HClO4 soln. in ice bath to pH 1, recrystn. (CH3OH), elem. anal.;

cobalt(II) chloride hexahydrate + Lg-tartaric acid ; disodium tartrate (6106-24-7) → (Δ-tris(2,2'-bipyridine)cobalt(II) hemichloride d-tartrate hemisodium)*6.5H2O

Conditions	Yield
With (C5H4N)2 In water mixt. of CoCl2*6H2O and (C5H4N)2 was dissolved in degassed hot water, tartrate was added; mixt. was filtered, filtrate was cooled to room temp., powder was filtered off, filtrate was placed in dessicator for several days; elem. anal.;

sodium [99Tc]pertechnetate + sodium carbonate (497-19-8) + Lg-tartaric acid ; disodium tartrate (6106-24-7) → [(99)technetium(I)(carbonyl)3(H2O)3] (163932-31-8)

Conditions	Yield
With sodium carboxylatotrihydroborate; sodium tetraborate decahydrate at 100℃; for 0.116667h; Sealed tube; Inert atmosphere;

Pt(2,2`-bipyridine)(ONO2)2 (54822-51-4) + water (7732-18-5) + Lg-tartaric acid ; disodium tartrate (6106-24-7) → [{2,2’-bipyridine platinum(II)}2(μ-L-tartrate)]*6H2O + [{2,2’-bipyridine platinum(II)}2(μ-L-tartrate)]*6H2O

Conditions	Yield
In water at 20℃; for 24h; Overall yield = 56 %;

Upstream product

• 6381-59-5 rochelle salt 
• 87-69-4 L-Tartaric acid 
• 497-19-8 sodium carbonate 
• 20199-92-2 sodium ammonium tartrate tetrahydrate