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Isobutyric acid(CAS#79-31-2)

Chemical Property:

Molecular Formula C4H8O2
Molar Mass 88.11
Density 0.95 g/mL at 25 °C (lit.)
Melting Point -47 °C (lit.)
Boling Point 153-154 °C (lit.)
Flash Point 132°F
JECFA Number 253
Water Solubility 210 g/L (20 ºC)
Solubility 618g/l
Vapor Presure 1.5 mm Hg ( 20 °C)
Vapor Density 3.04 (vs air)
Appearance Liquid
Color Clear colorless
Merck 14,5155
BRN 635770
pKa 4.84(at 20℃)
PH 3.96(1 mM solution);3.44(10 mM solution);2.93(100 mM solution);
Storage Condition Store below +30°C.
Explosive Limit 1.6-7.3%(V)
Refractive Index n20/D 1.393(lit.)
Physical and Chemical Properties Colorless oily liquid with strong pungent odor.
melting point -47 ℃
boiling point 154.5 ℃
relative density 0.949
refractive index 1.3930
flash point 76.67
solubility is miscible with water, soluble in ethanol, ether, etc.
Use Mainly used in the synthesis of isobutyric acid ester products, such as methyl, Propyl isobutyrate, isoamyl Ester, benzyl ester, etc., can be used as edible spices, also used in pharmaceutical

Product Detail

Product Tags

Hazard Symbols Xn – Harmful
Risk Codes 21/22 – Harmful in contact with skin and if swallowed.
Safety Description S23 – Do not breathe vapour.
S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection.
S24/25 – Avoid contact with skin and eyes.
UN IDs UN 2529 3/PG 3
WGK Germany 1
RTECS NQ4375000
FLUKA BRAND F CODES 13
TSCA Yes
HS Code 29156000
Hazard Class 3
Packing Group III
Toxicity LD50 orally in Rabbit: 266 mg/kg LD50 dermal Rabbit 475 mg/kg

 

Introduction

Isobutyric acid, also known as 2-methylpropionic acid, is an organic compound. The following is a detailed introduction to the properties, uses, preparation methods and safety information of isobutyric acid:

 

Quality:

Appearance: Colorless liquid with a special pungent odor.

Density: 0.985 g/cm³.

Solubility: Soluble in water and many organic solvents.

 

Use:

Solvents: Due to its good solubility, isobutyric acid is widely used as a solvent, especially in paints, paints, and cleaners.

 

Method:

A common method of preparation of isobutyric acid is obtained by oxidation of butene. This process is catalyzed by a catalyst and is carried out at high temperatures and pressures.

 

Safety Information:

Isobutyric acid is a corrosive chemical that can cause irritation and damage when in contact with the skin and eyes, and appropriate precautions should be worn when using it.

Long-term exposure may cause dryness, cracking, and allergic reactions.

When storing and handling isobutyric acid, it should be kept away from open flames and high temperatures to prevent fire and explosion hazards.


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