Name | disodium tartrate |
Synonyms | Sodium Tartrate DISODIUM TARTRATE sodiumdl-tartrate disodium tartrate SODIUM L-TARTRATE SODIUM SULPHATE ANHY SODIUM TARTRATE DIBASIC L-TARTARIC ACID SODIUM SALT TARTARIC ACID DISODIUM SALT SODIUM TARTRATE DIBASIC DIHYDRATE disodium (2R,3R)-2,3-dihydroxybutanedioate Butanedioicacid,2,3-dihydroxy-[R-(R*,R*)]-disodiumsalt [r-(r*,r*)]-2,3-dihydroxybutanedioic acid disodium salt |
CAS | 868-18-8 |
EINECS | 212-773-3 |
InChI | InChI=1/C4H6O6.2Na/c5-1(3(7)8)2(6)4(9)10;;/h1-2,5-6H,(H,7,8)(H,9,10);;/q;2*+1/p-2/t1-,2-;;/m1../s1 |
Molecular Formula | C4H4Na2O6 |
Molar Mass | 194.05 |
Density | 1.818 |
Boling Point | 399.3°C at 760 mmHg |
Flash Point | 209.4°C |
Water Solubility | soluble in ~9 parts H2O, 2 parts boiling H2O; insoluble alcohol [MER06] |
Vapor Presure | 0Pa at 20℃ |
Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.070', , 'λ: 280 nm Amax: 0.040'] |
PH | 7.0-8.0 (25℃, 1.5M in H2O) |
Physical and Chemical Properties | Transparent colorless prismatic crystal or white crystalline powder. Odorless. Salty taste. Slightly hygroscopic in the air. Soluble in water (1g/3 m1), the aqueous solution is left-handed, neutral, 5% aqueous solution of pH 7~9. Insoluble in ethanol, ether. Loss of crystal water at 120 deg C, and then heated to decompose. When burning, the smell of sugar burning is emitted, and the residue (Ash) is strongly alkaline, and the foam is generated when acid is encountered. |
Use | Used as a Biochemical reagent |
WGK Germany | - |
White transparent crystal or crystalline powder. Soluble in about 3 parts of cold water, 1.5 parts of boiling water, the aqueous solution is alkaline. pH 7 ~ g. Insoluble in ethanol. Heat dissolved in the crystallization of their own water. The water was dehydrated at 150 °c to become anhydrous. Heat gives off spicy and irritating smoke.
tartaric acid was dissolved in water, heated, added to sodium carbonate decahydrate and filtered. The filtrate was concentrated and cooled with stirring. The crystals were filtered with suction, washed with water and dried at room temperature to obtain pure sodium tartrate.
biochemical study. Analytical Determination of vanadium, calibration of Karl Fischer reagent.
LogP | -4.5 at 20℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
uses | chelating agents; Sour taste modifiers; Buffers; Emulsifying salts; Antioxidants; Antioxidant synergists. A flavoring agent for cool drinks, sake, etc. In combination with tartaric acid, the tartaric acid has a mild sour taste. It is also used for grease, jam, jelly, margarine, meat products and sausages. EEC for candy, jam, jelly, wine. used as Biochemical reagent |
production method | l-tartaric acid dissolved in water by heating, neutralized with sodium carbonate or sodium hydroxide, concentrated and crystallized, or the crystallization of ethanol. |
category | toxic substances |
toxicity grade | poisoning |
Acute toxicity | oral-mouse LDL0:3686 mg/kg |
flammability hazard characteristics | spicy and irritating fumes from heat |
storage and transportation characteristics | ventilation, drying, sun protection |
extinguishing agent | sand, water, foam and carbon dioxide |