Tripotassium phosphate

Basic Information

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CAS Number

7778-53-2

Molecular Formula

K3O4P

Molecular Weight

212.27 g/mol

Basic Physical Properties

Melting Point

1340 ºC

Density

2.564 g/mL at 25 °C

Water Solubility

50.8 g/100 mL (25 ºC)

Solubility

water: soluble100mg/mL, clear, colorless

SMILES

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[O-]P(=O)([O-])[O-].[K+].[K+].[K+]

InChI

InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3

InChIKey

LWIHDJKSTIGBAC-UHFFFAOYSA-K

LogP

0.38600

Complexity

36.8

Safety Information

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GHS Hazard Pictograms

H315

H318

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H318 Causes serious eye damage
Serious eye damage/eye irritation

Stability

Stable. Incompatible with strong oxidizing agents, moisture.

Sensitiveness

Hygroscopic

Synonyms & References

English

Potassium phosphate
Tripotassium orthophosphate
POTASSIUM O-PHOSPHATE
POTASSIUM PHOSPHATE TRIBASIC
Phosphoricacid,tripotassiumsalt
TKP
TRI-POTASSIUM ORTHOPHOSPHATE
TRIPOTASSIUM PHOSPHATE
BUFFER SOLUTION
PotassiumPhosphateTribasicK3PO4
phosphoric acid, potassium salt
Potassium orthophosphate(V)
Potassiumphosphate-tribasic
Tripotassium phosphate,anhydrous
POTASSIUM PHOSPHATE TRIBASIC ANHYDROUS
ACS
Caswell No. 700A
Potassium orthophosphate
Potassium phosphate (K3PO4)
Phosphoric acid, tripotassium salt
Potassium phosphate, tribasic
EPA Pesticide Chemical Code 076407
16D59922JU
Potassium phosphate, tribasic, 97%, pure, anhydrous
tribasic
phosphoric a
Potassium phosphate tribasic hydrate

MDL Number

MFCD00036295

Customs Code

2835240000

FAQ

What is Tripotassium phosphate (CAS: 7778-53-2)?

Tripotassium phosphate is a chemical compound with the formula K3PO4. It is a white, water-soluble powder that is commonly used as a buffering agent and in various industrial applications. It has a high melting point and is stable under normal conditions, making it suitable for use in multiple sectors.

What are the main uses of Tripotassium phosphate (CAS: 7778-53-2)?

Tripotassium phosphate is used in pharmaceuticals as a stabilizer and in food products as a leavening agent. It also finds applications in agriculture as a fertilizer, in water treatment for pH adjustment, and in research for buffer solutions. Its versatility makes it a key component in many chemical processes and products.

Is Tripotassium phosphate (CAS: 7778-53-2) safe?

Tripotassium phosphate is generally considered safe when handled properly. However, it can be harmful if inhaled, ingested, or comes into contact with skin or eyes. Protective measures such as gloves, goggles, and proper ventilation should be used. It is classified as non-toxic under standard safety guidelines but should be treated with caution in industrial settings.

How should Tripotassium phosphate (CAS: 7778-53-2) be stored?

Tripotassium phosphate should be stored in a cool, dry place away from moisture and direct sunlight. It is typically kept in airtight containers to prevent contamination. The ideal storage temperature is between 15°C and 25°C, and it remains stable under these conditions. Avoid exposure to strong acids or bases to maintain its integrity.