potassium hydrogen phthalate
potassium hydrogen phthalate Specification
- Ph Level
- 4.01 (0.05M solution at 25°C)
- Smell
- Odorless
- HS Code
- 2918.19.00
- Shape
- Powder or fine crystals
- Density
- 1.636 Gram per cubic centimeter(g/cm3)
- Appearance
- White crystalline solid
- Purity
- 99.9% or higher
- Solubility
- Soluble in water (22.1 g/100 mL at 25°C)
- Refractive Rate
- Not applicable (solid material)
- Molecular Formula
- C8H5KO4
- Molecular Weight
- 204.22 g/mol
- Physical Form
- White crystalline powder
- Structural Formula
- C8H5KO4
- EINECS No
- 212-889-4
- Usage
- Calibration of pH measurement instruments titration standard solutions research laboratories and analytical chemistry
- Shelf Life
- Stable under recommended storage conditions indefinite if properly stored
- Properties
- Highly stable pH buffer non-hygroscopic good solubility in water
- Melting Point
- 295°C (decomposes)
- Taste
- Slightly sour taste
- Application
- Primarily used as a primary standard in acid-base titrations and calibration of pH meters
- Ingredients
- Potassium hydrogen phthalate (pure compound)
- Grade
- Analytical Grade
- Poisonous
- NO
- CAS No
- 877-24-7
- Storage
- Store in a cool dry and well-ventilated place in a tightly sealed container

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