Potassium Sodium Tartrate, Tetrahydrate, Granular, USP Grade

Piezoelectric compound for protein crystallography & Fehling's solution ingredient. Potassium Sodium Tartrate, Tetrahydrate, Granular, USP grade, is also known as Seignette's salt or Rochelle salt. It is a clear-white granular crystal that exhibits piezoelectricity. This unique property makes it an essential compound in protein crystallography, where it serves as a common precipitant. It is also an ingredient in Fehling's solution, a chemical reagent formerly used in the determination of reducing sugars in solutions. Additionally, it is a component of the Biuret reagent, which is used to measure protein concentration. Potassium Sodium Tartrate, Tetrahydrate, Granular, USP grade, has a minimum assay of 99.0%, maximum of 102.0%, and a typical value of 99.7%. It contains less than 0.001% heavy metals and has a specific gravity of 1.79. The product has a formula weight of 283.22 and a melting point of 75ºC. This product is suitable for manufacturing, processing, repackaging, or research purposes only and should be handled by experienced personnel.

Key Features:

• Piezoelectric compound for protein crystallography
• Ingredient in Fehling's solution for determining reducing sugars
• Component of the Biuret reagent for measuring protein concentration
• Clear-white granular crystal with a minimum assay of 99.0%, maximum of 102.0%, and a typical value of 99.7%
• Contains less than 0.001% heavy metals and has a specific gravity of 1.79

Product Specifications:

Similar Products:

• Ammonium Tartrate
• Potassium Chloride
• Sodium Tartrate
• Calcium Chloride
• Magnesium Sulfate

Caution: Only for manufacturing, processing, repackaging, or research purposes by experienced personnel.

Sodium Perborate Tetrahydrate, Min 96%

Sodium Perborate Tetrahydrate (NaBO₃·4H₂O), with a minimum purity of 96%, is a technical-grade compound primarily used as a stable source of active oxygen. It serves a range of applications, including developing vat dyes, textile bleaching, and in the formulation of synthetic detergents and laundry products. Compared to more aggressive bleach alternatives like sodium hypochlorite, Sodium Perborate is less harsh on fabrics and dyes, making it ideal for cleaning and laundry bleaches. It is also used in dental compositions, electroplating, and as a laboratory reagent. The product is available as a white powder, sometimes forming clumps, and is moderately toxic by ingestion. Due to its strong oxidizing properties, it poses a fire risk when in contact with organic materials. Sodium Perborate Tetrahydrate is available for ground shipping via UPS or FedEx and cannot be shipped by air or priority services.

Key Features

• Stable source of active oxygen for cleaning and bleaching
• Less aggressive than sodium hypochlorite and other chlorine-based bleaches
• Used in textile bleaching, laundry detergents, and vat dye development
• Ideal for dental compositions and electroplating
• Moderately toxic by ingestion; strong oxidizing agent
• White powder, may form clumps

Product Specifications