Potassium sodium tartrate
- CAS No.
- 304-59-6
- Chemical Name:
- Potassium sodium tartrate
- Synonyms
- SODIUM POTASSIUM TARTRATE;Rochelle's salt;ROCHELLE SALTS;Potassium sodium tartarate;D-Potassiumsodiumtartrate;potassium sodium tartrate solution;FEHLING SOLUTION B;Sodium Potassium tartrate Solution;C4O6H2KNa;ALKALINE TARTRATE
- CBNumber:
- CB6690997
- Molecular Formula:
- C4H6O6.K.Na
- Molecular Weight:
- 212.18
- MDL Number:
- MFCD00065391
- MOL File:
- 304-59-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Potassium sodium tartrate solution BioUltra, 1.5?M in H2O | 81028 | 100ML | $95.1 |
| Potassium sodium tartrate solution BioUltra, 1.5?M in H2O | 81028 | 500ML | $347 |
| Potassium Sodium Tartrate (1.5M Solution in Water) | TRC-P698713-50ML | 50mL | $167 |
| Potassium Sodium Tartrate (1.5M Solution in Water) | TRC-P698713-100ML | 100mL | $294 |
| Potassium sodium tartrate ≥98% | CS-0020513 | 500g | $29 |
| More product size | |||
| Melting point | 70~80℃ |
|---|---|
| Boiling point | 100 °C |
| Density | 1.24 |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Room Temperature |
| solubility | Methanol, Water |
| form | Liquid |
| color | Clear Colorless |
| PH | 7.0-8.5 (25℃, 1.5M in H2O) |
| optical activity | [α]20/D +22±1°, c = 1% in H2O |
| Water Solubility | g anhydrous/100 g H2O: 31.9 (0°C), 67.8 (20°C), 102 (30°C) [LAN05]; slightly soluble alcohol [MER06] |
| λmax |
λ: 260 nm Amax: 0.03 λ: 280 nm Amax: 0.025 |
| Cosmetics Ingredients Functions | BUFFERING |
| InChI | 1S/C4H6O6.K.Na/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 |
| InChIKey | LJCNRYVRMXRIQR-OLXYHTOASA-L |
| SMILES | [Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O |
| LogP | -1.080 (est) |
| SCOGS (Select Committee on GRAS Substances) | L(+)-sodium potassium tartrate |
| CAS DataBase Reference | 304-59-6(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | SODIUM POTASSIUM TARTRATE |
| FDA UNII | P49F8NV7ES |
| EPA Substance Registry System | Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, monopotassium monosodium salt (304-59-6) |
| UNSPSC Code | 12352204 |
| NACRES | NA.26 |
SAFETY
Risk and Safety Statements
| PPE | Eyeshields, Gloves |
|---|---|
| Hazard Codes | |
| Risk Statements | |
| Safety Statements | |
| WGK Germany | WGK 3 |
| TSCA | TSCA listed |
| Storage Class | 10 - Combustible liquids |
| Hazardous Substances Data | 304-59-6(Hazardous Substances Data) |
| REACH Registrations | Active |
Potassium sodium tartrate price More Price(17)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 81028 | Potassium sodium tartrate solution BioUltra, 1.5?M in H2O | 304-59-6 | 100ML | $95.1 | 2026-04-30 | Buy |
| Sigma-Aldrich | 81028 | Potassium sodium tartrate solution BioUltra, 1.5?M in H2O | 304-59-6 | 500ML | $347 | 2026-04-30 | Buy |
| TRC | TRC-P698713-50ML | Potassium Sodium Tartrate (1.5M Solution in Water) | 304-59-6 | 50mL | $167 | 2026-06-03 | Buy |
| TRC | TRC-P698713-100ML | Potassium Sodium Tartrate (1.5M Solution in Water) | 304-59-6 | 100mL | $294 | 2026-06-03 | Buy |
| ChemScene | CS-0020513 | Potassium sodium tartrate ≥98% | 304-59-6 | 500g | $29 | 2026-06-04 | Buy |
Potassium sodium tartrate Chemical Properties,Uses,Production
Description
Potassium sodium tartrate is a double salt first prepared (in about 1675) by an apothecary, Pierre Seignette, of La Rochelle, France. As a result the salt was known as Seignette's salt or Rochelle salt. Rochelle salt is not to be confused with rock salt, which is simply the mineral form of sodium chloride. Potassium sodium tartrate and mono potassium phosphate were the first materials discovered to exhibit piezo electricity.
It is a colorless to blue - white salt crystallizing in the orthorhombic system. Its molecular formula is KNaC4H4O6·4H2O. It is slightly soluble in alcohol but more completely soluble in water. It has a specific gravity of about 1.79, a melting point of approximately 75°C, and has a saline, cooling taste. As a food additive, its E number is E337.
It has been used medicinally as a laxative. It has also been used in the process of silvering mirrors. It is an ingredient of Fehling's solution, formerly used in the determination of reducing sugars in solutions.
Chemical Properties
often supplied as a colourless aqueous solution
Uses
Sodium Potassium Tartrate is a buffer and sequestrant that is the salt of i, (+)–tartaric acid. It has a solubility in water of 1 g in 1 ml. It is also termed rochelle salt and potassium sodium tartrate.
Uses
Laxative.
Uses
Potassium Sodium Tartrate Solution is a chelator used for research purposes.
Preparation
Potassium sodium tartrate, (KNaC4H4O6) may be prepared by adding 0.5 mole sodium carbonate to heated solution containing 1 mole potassium bitartrate(KHC4H5O6). (1M KHC4H4O6 : 0.5M Na2CO3). The solution is filtered while hot. This solution is then dried to precipitate solid potassium sodium tartrate, as small crystallites.
Larger crystals of Rochelle salt have been grown under conditions of reduced gravity and convection on board Skylab .
Definition
ChEBI: The organic sodium and potassium salt of L-tartaric acid (mol ratio 1:1:1).
Flammability and Explosibility
Not classified
Purification Methods
Recrystallise it from distilled water (1.5mL/g) by cooling to 0o. [Beilstein 3 IV 1223.]
Potassium sodium tartrate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| JIANGYIN SHELLCHEMICAL | 15312220685 | sales02@beikechem.cn | China | 219 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| airuikechemical co., ltd. | +86-18353166132 | sales02@airuikechemical.com | China | 983 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hefei Lbao Physical & Chemical Science Co.,Ltd | +15184799099 | lbaochemicals@gmail.com | China | 670 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| Hebei shuoxi biotechnology co. LTD | +8613081092107 | CHINA | 964 | 58 |
View Lastest Price from Potassium sodium tartrate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-28 | Potassium Sodium Tartrate
304-59-6
|
$10.00 | 1kg | 98% | 10 ton | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-05-18 | Potassium sodium tartrate
304-59-6
|
1kg | 98% | Hefei Lbao Physical & Chemical Science Co.,Ltd | |||
 |
2026-03-20 | Potassium sodium tartrate
304-59-6
|
$8.00-10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Potassium Sodium Tartrate
304-59-6
- $10.00
- 98%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Potassium sodium tartrate
304-59-6
- $0.00
- 98%
- Hefei Lbao Physical & Chemical Science Co.,Ltd
-
- Potassium sodium tartrate
304-59-6
- $8.00-10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
