A6744512
Potassium biphthalate Buffer tablets pH 4.0 , PH standard value: 4 , 877-24-7
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
Pack Size | Price | Stock | Quantity |
10×2g | RMB79.20 | In Stock |
|
others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
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 |
PH | 4.00-4.02 (25.0℃±0.2℃, 0.05M) |
Odor | Odorless |
PH Range | 3.8 - 4.0 (5% aq. sol.) |
Water Solubility | 80 G/L (20 ºC) |
Merck | 14,7612 |
BRN | 3637128 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
InChIKey | IWZKICVEHNUQTL-UHFFFAOYSA-M |
LogP | -2.73 |
CAS DataBase Reference | 877-24-7(CAS DataBase Reference) |
EPA Substance Registry System | Monopotassium phthalate (877-24-7) |
Description and Uses
Potassium hydrogen phthalate [KHP; pH(S) = 4.005 (25 °C)] is a certified secondary standard reference material used as a calibration buffer standard for pH instruments or pH electrodes.
Safety
Symbol(GHS) | GHS07 |
Signal word | Warning |
Hazard statements | H315-H319 |
Precautionary statements | P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313 |
Hazard Codes | Xi,C,T |
Risk Statements | 36/38-36/37/38-34-61-60 |
Safety Statements | 26-36-24/25-22-45-36/37/39-53 |
RIDADR | UN 1789 8/PG 3 |
WGK Germany | 1 |
RTECS | CZ4326000 |
F | 34 |
TSCA | Yes |
HS Code | 29173990 |
Toxicity | LD50 orally in Rabbit: > 3200 mg/kg |