Potassium Hydrogen Phthalate (KHP) (Potassium acid phthalate, Potassium biphthalate, Phthalic acid m

Potassium Biphthalate is used as buffer solution and Acidimetric standard. Synonyms: Hydrogen Potassium Phthalate, KAP, Monopotassium 1,2-Benzenedicarboxylate, Monopotassium Phthalate, Potassium Acid Phthalate, Potassium Hydrogen Phthalate, CAS No: 877-24-7, Molecular Formula: C?H?KO?, Molecular Weight: 204.22, Appearance: White crystalline powder, Purity: >99.9%, Solubility: Colorless, clear, complete, Insoluble Matter: <0.005%, pH (0.05M): 4.0 ± 0.2, Chlorine: <0.003%, Sulfur: <0.002%, Iron: <0.0005%, Sodium: <0.005%, Heavy Metals (Pb): <0.0005%, Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards:  All products should be handled by qualified personnel only, trained in laboratory procedures.