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Potassium Phosphate Dibasic

Product Name
Potassium Phosphate Dibasic
CAS No.
7758-11-4
Chemical Name
Potassium Phosphate Dibasic
Synonyms
DIPOTASSIUM PHOSPHATE;POTASSIUM HYDROGEN PHOSPHATE;DKP;POTASSIUM PHOSPHATE, DIBASIC;DIBASIC POTASSIUM PHOSPHATE;Dipotassium phosphate anhydrous;POTASSIUM MONOPHOSPHATE;DI-POTASSIUM HYDROGEN PHOSPHATE;POTASSIUM BIPHOSPHATE;potassiumdibasicphosphate
CBNumber
CB5668937
Molecular Formula
K2HPO4
Formula Weight
174.18
MOL File
7758-11-4.mol
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Potassium Phosphate Dibasic Property

Melting point:
340 °C
Density 
2,44 g/cm3
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
color 
White
PH
8.5-9.6 (25℃, 50mg/mL in H2O)
pka
(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Odor
Odorless
PH Range
8.8
Water Solubility 
1600 g/L (20 ºC)
Sensitive 
Hygroscopic
λmax
λ: 260 nm Amax: ≤0.20
λ: 280 nm Amax: ≤0.15
Decomposition 
>465°C
Merck 
14,7658
Stability:
Stable. Hygroscopic.
InChIKey
ZPWVASYFFYYZEW-UHFFFAOYSA-L
LogP
-2.148 (est)
CAS DataBase Reference
7758-11-4(CAS DataBase Reference)
EPA Substance Registry System
Dipotassium phosphate (7758-11-4)
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Safety

Hazard Codes 
Xi,C,T,F
Risk Statements 
36-35-22
Safety Statements 
22-24/25-36-26-45-36/37/39
WGK Germany 
3
RTECS 
TC8450000
F 
3
TSCA 
Yes
HS Code 
28352400
Hazardous Substances Data
7758-11-4(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 8000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Hazard statements

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PX1570
Product name
Potassium phosphate dibasic
Purity
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Packaging
500g
Price
$151
Updated
2024/03/01
Sigma-Aldrich
Product number
PX1570
Product name
Potassium phosphate dibasic
Purity
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Packaging
1kg
Price
$303
Updated
2024/03/01
Sigma-Aldrich
Product number
PX1570
Product name
Potassium phosphate dibasic
Purity
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Packaging
12kg
Price
$1390
Updated
2024/03/01
Sigma-Aldrich
Product number
PX1570
Product name
Potassium phosphate dibasic
Purity
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Packaging
50kg
Price
$2590
Updated
2024/03/01
Sigma-Aldrich
Product number
PHR2900
Product name
Dibasic Potassium Phosphate
Purity
pharmaceutical secondary standard, certified reference material
Packaging
5G
Price
$172
Updated
2024/03/01
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Potassium Phosphate Dibasic Chemical Properties,Usage,Production

Description

Potassium Phosphate Dibasic is a common source of phosphorus and potassium, which is often used as a fertilizer. It is also widely applied in the food industry, such as food additive and electrolyte replenisher for workout supplement. Another usage of Potassium Phosphate Dibasic is as a medicine, who serves as a diuretic or laxative. Besides, it is employed in the production of imitation dairy creamers to prevent coagulation and used in certain powders to prepare beverages. In addition, it is commonly seen in chemical laboratories for producing buffer solutions and trypticase soy agar which is used to make agar plates for culturing bacteria.

Chemical Properties

White crystalline powder

Physical properties

White amorphous powder; deliquesces; decomposes on heating; converts to pyrophosphate when ignited; very soluble in water, 167 g/100mL at 20°C; very soluble in alcohol; aqueous solution slightly alkaline.

Uses

Buffering agent in antifreeze solutions; nutrient in the culturing of antibiotics; ingredient of instant fertilizers; as sequestrant in the preparation of non-dairy powdered coffee creams.

Uses

Potassium Phosphate Dibasic is used as a buffering agent to control the degree of acidity in solutions.

Uses

Potassium Phosphate Dibasic is the dipotassium salt of phosphoric acid which functions as a stabilizing salt, buffer, and sequestrant. It is mildly alkaline with a ph of 9 and is soluble in water with a solubility of 170 g/100 ml of water at 25°c. It improves the colloidal solubility of proteins. It acts as a buffer against variation in ph. For example, it is used in coffee whiteners as a buffer against ph variation in hot coffee and to prevent feathering. It also functions as an emulsifier in specified cheeses and as a buffering agent for processed foods. It is also termed dipotassium monohydrogen orthophosphate and dipotassium monophosphate.

Uses

Buffer solutions.

Application

Potassium Phosphate Dibasic can be used as corrosion inhibitor of antifreeze, nutrient of antibiotic culture medium, phosphorus and potassium regulator of fermentation industry, feed additive, medicine, fermentation, bacterial culture and preparation of potassium pyrophosphate, as feed phosphorus supplement additive. Potassium hydrogen phosphate can also be used as water treatment agent, microorganism, fungus culture agent and other purposes. It is often used as analytical reagent and buffer. It is also used in pharmaceutical industry. In food industry, it is used as raw material for preparing alkaline water for pasta products, fermentation agent, flavoring agent, bulking agent, mild alkaline agent for dairy products and yeast food. Potassium Phosphate Dibasic can be used as buffer, chelating agent and analytical reagent. Buffers and pharmaceuticals. Potassium Phosphate Dibasic can be used for boiler water treatment. In medicine and fermentation industry, Potassium Phosphate Dibasic can be used as phosphorus and potassium regulator and bacterial culture medium. It is the raw material for producing potassium pyrophosphate. It can be used as liquid fertilizer and corrosion inhibitor of ethylene glycol antifreeze. Feed grade is used as feed nutritional supplement. Potassium dihydrogen phosphate can be used as a product quality improver, which can improve the complex metal ions, pH value and ionic strength of food, so as to improve the bonding force and water holding capacity of food. China stipulates that Potassium Phosphate Dibasic can be used for fat planting powder, with a maximum dosage of 19.9g/kg.

Preparation

Dipotassium phosphate is prepared by partial neutralization of phosphoric acid with potassium hydroxide, followed by crystallization:
H3PO4+ 2KOH →K2HPO4+ 2H2O.

Definition

ChEBI: A potassium salt that is the dipotassium salt of phosphoric acid.

General Description

Potassium phosphate dibasic is a useful biological buffer having a pH in the range of 8.5-9.6. Potassium phosphate is present in various forms: monobasic (KH2PO4), dibasic (KH2PO4), and tribasic (K3PO4). Potassium phosphate buffers are widely employed in equilibrium dialysis, high performance liquid chromatography (HPLC) and affinity capillary electrophoresis studies.

References

https://en.wikipedia.org/wiki/Dipotassium_phosphate
https://pubchem.ncbi.nlm.nih.gov/compound/Dipotassium_hydrogen_phosphate#section=Other-Identifiers
https://www.isitbadforyou.com/questions/is-dipotassium-phosphate-bad-for-you

Potassium Phosphate Dibasic Preparation Products And Raw materials

Raw materials

Ampicillin Phenolphthalein indicator Potassium hydroxide Phosphoric acid Phenolphthalein Potassium carbonate Indicator

Preparation Products

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Potassium Phosphate Dibasic Suppliers

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View Lastest Price from Potassium Phosphate Dibasic manufacturers

Hebei Andu Technology Com.,Ltd
Product
Potassium Phosphate Dibasic 7758-11-4
Price
US $3.60/kg
Min. Order
1kg
Purity
≥99%
Supply Ability
3000tons/month
Release date
2024-08-18
WUHAN FORTUNA CHEMICAL CO., LTD
Product
Potassium Phosphate Dibasic 7758-11-4
Price
US $0.00/KG
Min. Order
25KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-01-10
Hebei Yanxi Chemical Co., Ltd.
Product
Potassium Phosphate Dibasic 7758-11-4
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
100tons
Release date
2023-09-27

7758-11-4, Potassium Phosphate DibasicRelated Search:

POTASSIUM PHOSPHITE Potassium sorbate Dimethyl succinate Trisodium phosphate Potassium chloride Zinc phosphate Potassium phosphate tribasic Ammonium phosphate dibasic Sodium Phosphate, Dibasic MAGNESIUM HYDROGEN PHOSPHATE TRIHYDRATE DICALCIUM PHOSPHATE DIHYDRATE phosphate Potassium di-tert-butyl phosphate DI-TERT-BUTYLPHOSPHATE, TETRABUTYLAMMONIUM SALT Trimethyl phosphate Dibenzyl phosphate Potassium Phosphate Monobasic Ammonium dihydrogen phosphate

  • potassiumdibasicphosphate
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  • Potassiumhydrogenphosphate,98+%(ACS)
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  • POTASSIUM PHOSPHATE DIBASIC ANHYDROUS USP/NF
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  • DIBASICPOTASSIUMORTHOPHOSPHATE
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  • Potassium phosphate dibasic anhydrous, free-flowing, Redi-Dri(TM), ACS reagent, >=98%
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  • Potassium phosphate dibasic Vetec(TM) reagent grade, 98%
  • Isolyte
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  • Potassium phosphate, dibasic, anhydrous, for analysis
  • DI-POTASSIUM HYDROGEN PHOSPHATE GEN-APEX
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  • PRIMARY SOLUTION RED
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