ChemicalBook >> CAS DataBase List >>Potassium hydrogen phthalate
Potassium hydrogen phthalate
- CAS No.
- 877-24-7
- Chemical Name:
- Potassium hydrogen phthalate
- Synonyms
- PBS;BUFFER;Potassium biphthalate;PHOSPHATE BUFFER SOLUTION;BUFFER SOLUTION;Potassium acid phthalate;Potassium hydrogen;KAP;PHOSPHATE BUFF, PH 7.5;Potassium hydrogen phthalate, acidimetric standard
- CBNumber:
- CB1132397
- Molecular Formula:
- C8H5KO4
- Molecular Weight:
- 204.22
- MDL Number:
- MFCD00146206
- MOL File:
- 877-24-7.mol
- MSDS File:
- SDS
Last updated:2023-04-23 13:52:06
| 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 |
| PH Range | 3.8 - 4.0 (5% aq. sol.) |
| PH | 4.00-4.02 (25.0℃±0.2℃, 0.05M) |
| 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) |
| EWG's Food Scores | 1 |
| FDA UNII | GG9121M623 |
| EPA Substance Registry System | Monopotassium phthalate (877-24-7) |
SAFETY
Risk and Safety Statements
| 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 | |||||||||
| NFPA 704 |
|
Potassium hydrogen phthalate price More Price(74)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | PX1476 | Potassium Hydrogen Phthalate Meets ACS Specifications GR ACS | 877-24-7 | 125G | $144 | 2024-03-01 | Buy |
| Sigma-Aldrich | PX1476 | Potassium Hydrogen Phthalate Meets ACS Specifications GR ACS | 877-24-7 | 500G | $174 | 2024-03-01 | Buy |
| Sigma-Aldrich | PX1476 | Potassium Hydrogen Phthalate Meets ACS Specifications GR ACS | 877-24-7 | 2.5KG | $278 | 2024-03-01 | Buy |
| Sigma-Aldrich | PX1476 | Potassium Hydrogen Phthalate Meets ACS Specifications GR ACS | 877-24-7 | 12KG | $1450 | 2024-03-01 | Buy |
| Sigma-Aldrich | P5244 | Phosphate buffer solution 0.1?M | 877-24-7 | 100mL | $55.1 | 2024-03-01 | Buy |
Potassium hydrogen phthalate Chemical Properties,Uses,Production
Chemical Properties
white crystalline powder
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.
Uses
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.
Uses
As primary standard for preparing volumetric alkali solutions, also as a buffer in pH determinations.
General Description
Flammability and Explosibility
Not classified
Purification Methods
Crystallise it first from a dilute aqueous solution of K2CO3, then H2O (3mL/g) between 100o and 0o. Before being used as a standard in volumetric analysis, analytical grade potassium hydrogen phthalate should be dried at 120o for 2hours, then allowed to cool in a desiccator. [Beilstein 9 IV 3169.]
Potassium hydrogen phthalate Preparation Products And Raw materials
Global( 426)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
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| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 47465 | 58 |
View Lastest Price from Potassium hydrogen phthalate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2023-03-27 | Potassium hydrogen phthalate
877-24-7
|
US $25.00 / KG | 1KG | 99% | 5t | XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD | |
 |
2023-03-06 | Potassium Hydrogen Phthalate
877-24-7
|
US $6.00 / Kg/Bag | 1g | 99% | 10000kg | Hebei Guanlang Biotechnology Co,.LTD | |
 |
2023-01-31 | Potassium Hydrogen Phthalate
877-24-7
|
US $100.00 / kg | 1kg | 99% | 50000KG/month | Hebei Mojin Biotechnology Co., Ltd |
-
- Potassium hydrogen phthalate
877-24-7
- US $25.00 / KG
- 99%
- XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD
-
- Potassium Hydrogen Phthalate
877-24-7
- US $6.00 / Kg/Bag
- 99%
- Hebei Guanlang Biotechnology Co,.LTD
-
- Potassium Hydrogen Phthalate
877-24-7
- US $100.00 / kg
- 99%
- Hebei Mojin Biotechnology Co., Ltd
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BUFFER CONCENTRATE, PH 6.00
BUFFER CONCENTRATE, PH 7.00
BUFFER MIXTURE, PH 6.8
BUFFER O
BUFFER, PH 1.0
BUFFER, PH 1.00
BUFFER, PH 11.00
BUFFER, PH 1.2
BUFFER, PH 12.00
BUFFER, PH 12.45
BUFFER, PH 12.72
BUFFER, PH 1.68
BUFFER, PH 2.00
BUFFER, PH 10.00
BUFFER, PH 10.00, COLOR CODE BLUE
BUFFER, PH 1.07
BUFFER PH 10, BLUE
BUFFER, PH 2.5
BUFFER, PH 3.00
BUFFER SOLUTION PH 3.00
BUFFER SOLUTION PH 3.06
BUFFER SOLUTION PH 3.55
BUFFER SOLUTION PH 3.776
BUFFER SOLUTION, PH 4.0
BUFFER SOLUTION PH 4.00
BUFFER SOLUTION PH 4.006
BUFFER SOLUTION PH 6.00
BUFFER SOLUTION, PH 5.0
BUFFER SOLUTION PH 5.00
BUFFER SOLUTION, PH 5.00, +0.02
BUFFER SOLUTION PH 4.00 RED
BUFFER SOLUTION, PH 4.01
BUFFER SOLUTION PH 4.65
BUFFER SOLUTION PH 4.66
BUFFER SOLUTION PH 9.180
BUFFER SOLUTION PH 9.22
BUFFER SOLUTION PH 9.23
BUFFER SOLUTION, PH 9.54
BUFFER SOLUTION, PH 8.0
BUFFER SOLUTION PH 8.00
BUFFER SOLUTION PH 8.90
BUFFER SOLUTION, PH 9.0
BUFFER SOLUTION PH 9.00
BUFFER SOLUTION PH 9.00 BLUE
BUFFER SOLUTION PH 7.413
BUFFER SOLUTION PH 7.70
BUFFER SOLUTION PH 7.00
BUFFER SOLUTION PH 7.00 GREEN
BUFFER SOLUTION, PH 7.2, PHOSPHATE
BUFFER SOLUTION PH 6.79
BUFFER SOLUTION PH 6.86
BUFFER SOLUTION PH 6.865
BUFFER SOLUTION PH 6.88
BUFFER SOLUTION, PH 7.0