Carbonic acid, dipotassium salt, hydrate (2:3)

Basic Information

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CAS Number

6381-79-9

Molecular Formula

C2H6K4O9

Molecular Weight

330.46 g/mol

EINECS

678-913-4

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

891 °C

Density

2.043

Water Solubility

Soluble in water. Practically insoluble in alcohol

Solubility

1300g/l

SMILES

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

InChI

InChI=1S/2CH2O3.4K.3H2O/c2*2-1(3)4;;;;;;;/h2*(H2,2,3,4);;;;;3*1H2/q;;4*+1;;;/p-4

InChIKey

WWVGGBSGYNQKCY-UHFFFAOYSA-J

LogP

-0.809 (est)

Complexity

18.8

Safety Information

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GHS Hazard Pictograms

H302

H315

H319

H335

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Sensitiveness

Hygroscopic

Toxicity

LD50 orally in Rabbit: > 2000 mg/kg

Synonyms & References

English

Potassium carbonate sesquihydrate, for analysis ACS
Potassium carbonate crystal
Potassium carbonate sesquihydrate, for analysis ACS, 98.5%
PotassiuM carbonate sesquihydrate, 98.5%, ACS reagent
POTASSIUM CARBONATE-1.5-HYDRATE 99.995
POTASSIUM CARBONATE HEMIHYDRATE
POTASSIUM CARBONATE HYDRATE
POTASSIUM CARBONATE, SESQUIHYDRATE
Potassium carbonate sesquihydrate
Potassiumcarbonate
tetrapotassium,dicarbonate,trihydrate
ACS

MDL Number

MFCD00149925

EC Number

678-913-4

Customs Code

28364000

FAQ

What are the physical and chemical properties of Carbonic acid, dipotassium salt, hydrate (2:3) (CAS: 6381-79-9)?

Carbonic acid, dipotassium salt, hydrate (2:3) is a white crystalline solid with a molecular weight of approximately 234.23 g/mol. It is slightly soluble in water. Chemically, it is stable under normal conditions but can react with acids to release carbon dioxide. It has a hydrate form, meaning it retains a certain amount of water in its crystal lattice.

How is Carbonic acid, dipotassium salt, hydrate (2:3) (CAS: 6381-79-9) typically synthesized?

Carbonic acid, dipotassium salt, hydrate (2:3) is synthesized by the reaction of potassium carbonate with carbon dioxide in an aqueous solution. The process involves the formation of potassium hydrogen carbonate, which then reacts with additional potassium carbonate to form the dipotassium salt. The reaction is typically conducted at room temperature and involves careful control of pH and temperature to achieve high yield and selectivity.

What industries use Carbonic acid, dipotassium salt, hydrate (2:3) (CAS: 6381-79-9)?

Carbonic acid, dipotassium salt, hydrate (2:3) is primarily used in the pharmaceutical industry as a buffer and stabilizer in drug formulations. It also finds applications in the food industry as a pH adjuster and in the polymer industry for the synthesis of certain polymers. Additionally, it is used in the production of sensors and in some semiconductor processes.

What precautions should be taken when handling Carbonic acid, dipotassium salt, hydrate (2:3) (CAS: 6381-79-9)?

When handling Carbonic acid, dipotassium salt, hydrate (2:3) (CAS: 6381-79-9), it is important to use personal protective equipment (PPE) such as gloves and goggles. It should be stored in a cool, dry place away from direct sunlight. Fume hoods should be used when performing operations that may release dust or vapors. In case of a spill, it should be cleaned up carefully using appropriate spill kits, and the area should be well ventilated. Always consult the Safety Data Sheet (SDS) for detailed handling and disposal instructions.