2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)

Basic Information

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CAS Number

5949-29-1

Molecular Formula

C6H10O8

Molecular Weight

210.14 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Physical Properties

Melting Point

135-152 ºC

Boiling Point

56 °C760 mm Hg

Water Solubility

1630 g/L (20 ºC)

Solubility

H2O: soluble54% (w/w) at 10°C (Citric acid in water)

Refractive Index

n20/D 1.359(lit.)

Vapor Pressure

184 mm Hg ( 20 °C)

SMILES

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O.OC(=O)CC(O)(CC(=O)O)C(=O)O

InChI

InChI=1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2

InChIKey

YASYEJJMZJALEJ-UHFFFAOYSA-N

LogP

-2.0732

Topological Polar Surface Area

163.63000000000002 Å²

Hydrogen Bond Donor/Acceptor

6 / 8

Complexity

227

Safety Information

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GHS Hazard Pictograms

H315

H318

H335

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H318 Causes serious eye damage
Serious eye damage/eye irritation

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

Stability

Stable. Incompatible with oxidizing agents, bases, reducing agents, nitrates.

Sensitiveness

Hygroscopic

Synonyms & References

English

2-Hydroxypropane-1,2,3-tricarboxylic acid hydrate
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monohydrate
2,3-propanetricarboxylicacid,2-hydroxy-monohydrate
citric
Citric acid hydrate
Citronensαure-hydrat
CitronensαureMonohydrat
Citric acid
Citric acid monohydrate
ACETONE 300
ACETONE 5000
ACETONE D
ACETONUM
citric acid hydride
citric acid monohydrate powder
EXTRAN AP 22
FEMA 3326
METHYL KETONE
monohydrate citric acid
PROPANONE
1,2,3-Propanetricarboxylicacid,2-hydroxy-,monohydrate
Citricacidhydrate
CITRIC ACID, MONOHYDRATE
2968PHW8QP
citrate
SBB068612
AK142751
Acidum citricum monohydricum
Citric acid monohydrate [USP]
Citric acid monohydrate (USP)
Citric acid monohydrate, 99+%, ACS reagent

MDL Number

MFCD00149972

Customs Code

2918140000

FAQ

What is 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1)?

2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1), also known as citric acid, is a weak organic acid with the chemical formula C6H8O7. It is a white crystalline solid, soluble in water, and exhibits acidic properties due to its three carboxyl groups. Commonly used as a food additive and pH regulator, citric acid is naturally found in citrus fruits and plays a key role in metabolic processes. Its hydrate form (1:1) stabilizes the compound for industrial and pharmaceutical applications.

What are the main uses of 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1)?

2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1) is widely used in pharmaceuticals as a pH adjuster and preservative, in the food industry as a flavor enhancer and antioxidant, and in industrial processes as a chelating agent and cleaning agent. It also serves as a buffer in research for maintaining stable pH levels. Its versatility stems from its ability to donate protons and form salts, making it essential in diverse applications.

Is 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1) safe?

2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1) is generally safe when handled properly. As a weak acid, it is non-toxic in typical exposure scenarios and approved for food and pharmaceutical use by regulatory bodies like FDA and EFSA. However, direct contact may cause skin or eye irritation. Safety data sheets recommend wearing gloves and goggles, and avoiding inhalation of dust. Proper storage ensures its stability and minimizes risks.

How should 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1) be stored?

Store 2-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (CAS: 5949-29-1) in a cool, dry place (15-25°C) away from moisture and direct light. Use airtight containers made of glass or plastic to prevent degradation. Maintain low humidity levels to avoid clumping, and ensure it is kept in a well-ventilated area. The hydrate form is stable under these conditions, preserving its chemical integrity and functionality for extended periods.