Potassium hydrogen phthalate
- Product Name
- 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
- Formula Weight
- 204.22
- MOL File
- 877-24-7.mol
Potassium hydrogen phthalate Property
- 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)
- EPA Substance Registry System
- Monopotassium phthalate (877-24-7)
Safety
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- PX1476
- Product name
- Potassium Hydrogen Phthalate
- Purity
- Meets ACS Specifications GR ACS
- Packaging
- 125G
- Price
- $144
- Updated
- 2024/03/01
- Product number
- PX1476
- Product name
- Potassium Hydrogen Phthalate
- Purity
- Meets ACS Specifications GR ACS
- Packaging
- 500G
- Price
- $174
- Updated
- 2024/03/01
- Product number
- PX1476
- Product name
- Potassium Hydrogen Phthalate
- Purity
- Meets ACS Specifications GR ACS
- Packaging
- 2.5KG
- Price
- $278
- Updated
- 2024/03/01
- Product number
- PX1476
- Product name
- Potassium Hydrogen Phthalate
- Purity
- Meets ACS Specifications GR ACS
- Packaging
- 12KG
- Price
- $1450
- Updated
- 2024/03/01
- Product number
- P5244
- Product name
- Phosphate buffer solution
- Purity
- 0.1?M
- Packaging
- 100mL
- Price
- $55.1
- Updated
- 2024/03/01
Potassium hydrogen phthalate Chemical Properties,Usage,Production
Chemical Properties
white crystalline powder
Uses
As primary standard for preparing volumetric alkali solutions, also as a buffer in pH determinations.
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
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.
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
Raw materials
Preparation Products
Potassium hydrogen phthalate Suppliers
View Lastest Price from Potassium hydrogen phthalate manufacturers
- Product
- Potassium hydrogen phthalate 877-24-7
- Price
- US $25.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 5t
- Release date
- 2021-12-24
- Product
- Potassium Hydrogen Phthalate 877-24-7
- Price
- US $6.00/Kg/Bag
- Min. Order
- 1g
- Purity
- 99%
- Supply Ability
- 10000kg
- Release date
- 2021-07-01
- Product
- Potassium hydrogen phthalate 877-24-7
- Price
- US $10.00/KG
- Min. Order
- 100KG
- Purity
- 99%
- Supply Ability
- 100 mt
- Release date
- 2021-09-29