Potassium Sodium Tartrate, CAS No. 304-59-6

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304-59-6

Catalog No. EBD2219564

CAS 304-59-6

Name Potassium Sodium Tartrate

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Basic Information

Synonyms: PotassiumSodiumTartrate Seignettesalt potassiumsodium(2R,3R)-2,3-dihydroxybutanedioatehydrate(1:1:1:4) potassiumsodium2,3-dihydroxybutanedioate PotassiumSodiumTartrateanhydrous

Molecular Formula: C4H4KNaO6

Molecular Weight: 210.16

MDL Number: MFCD00065391

Categories: Functional Chemicals > Consumer & Industrial Chemicals > Water Treatment Chemicals Synthetic Chemistry > Basic Synthetic Reagents > Other Basic Synthetic Reagents

Product Description:

Potassium sodium tartrate tetrahydrate, also known as Rochelle salt, is a double salt with the formula KNaC₄H₄O₆·4H₂O. It is a white crystalline powder that is soluble in water and exhibits piezoelectric properties. Its primary industrial application is as a key component in the preparation of Fehling's solution, a classical reagent used for the detection and quantification of reducing sugars (e.g., glucose) in analytical chemistry. Beyond this, it serves as a sequestering agent and buffer in various processes. It finds use in electroplating baths, in the textile industry as a mordant, and in water treatment for scale inhibition and metal ion chelation. While not a common building block in organic synthesis, its role as a specific reagent in Fehling's test places it within the scope of specialized analytical and inorganic synthesis reagents. It is generally considered to have low toxicity.

Physical Properties

Melting Point: 70~80℃

Boiling Point: 100 °C

Flash Point: 209.4 °C

Density: 1.24

Solubility: soluble