Potassium biphthalate
CAS: 877-24-7
Molecular Formula: C8H5KO4
Molecular Weight: 204.22
Product description:Colorless monoclinic crystal or white crystalline powder. Stability in the air, soluble in water, slightly soluble in alcohol. Soluble in about 12 copies of cold water, 3 copies of boiling water, slightly soluble in alcohol. Acidic solution. 25 ℃ 0.05 mol/L solution of pH 4.005.Take 660 g caustic potash (85%), soluble in 1 l of water. Add in heat, stirring the phthalic anhydride 1480 g, 0.5 h heating reaction, filtering. Condensed the filtrate to saturation, let cool to room temperature, suction out crystallization, drying, the finished product.Analytical reagent. Benchmark of alkali content, preparation buffer solution.
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