Potassium hydrogen phthalate
Synonym(s):Potassium hydrogen phthalate;KHP;Potassium biphthalate;buffer solution;Potassium phthalate monobasic
- CAS NO.：877-24-7
- Empirical Formula: C8H5KO4
- Molecular Weight: 204.22
- MDL number: MFCD00146206
- EINECS: 212-889-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-05-23 18:06:45
What is Potassium hydrogen phthalate?
The Uses of Potassium hydrogen phthalate
As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations. Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well as for calibrating pH meters. It acts as a buffer in pH determination. It finds application as a useful standard for total organic carbon testing.
What are the applications of Application
Potassium phthalate monobasic is a primary acid standard for volumetric preparations
Properties of Potassium hydrogen phthalate
| Melting point: | 295-300 °C (dec.) (lit.) |
| Boiling point: | 98.5-99.5 ;°C/740 ;mmHg(lit .) |
| Density | 1.006 g/mL at 20 °C |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 100 mg/mL, clear, colorless |
| form | Solid |
| color | White |
| Odor | Odorless |
| Water Solubility | 80 G/L (20 ºC) |
Safety information for Potassium hydrogen phthalate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for Potassium hydrogen phthalate
| InChIKey | IWZKICVEHNUQTL-UHFFFAOYSA-M |
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