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Isobutyric acid

Catalog No. 58360 Name Sigma Aldrich
CAS Number 79-31-2 Website http://www.sigmaaldrich.com
M. F. C4H8O2 Telephone 1-800-521-8956
M. W. 88.10512 Fax
Purity ≥99.5% (GC) Email
Storage Chembase ID: 2262

SYNONYMS

Title
异丁酸
IUPAC name
2-methylpropanoic acid
IUPAC Traditional name
isobutyric acid
Synonyms
2-Methylpropionic acid
2-甲基丙酸

DATABASE IDS

MDL Number MFCD00002658
EC Number 201-195-7
Beilstein Number 635770
PubChem SID 24881084
CAS Number 79-31-2

PROPERTIES

Cation Traces Li: ≤0.1 mg/kg
Cation Traces Mg: ≤0.1 mg/kg
Cation Traces Mn: ≤0.02 mg/kg
Cation Traces Mo: ≤0.1 mg/kg
Cation Traces Na: ≤2 mg/kg
Cation Traces Ni: ≤0.02 mg/kg
Cation Traces Pb: ≤0.1 mg/kg
Cation Traces Sr: ≤0.1 mg/kg
Cation Traces Zn: ≤0.1 mg/kg
Grade puriss. p.a.
Impurities ≤0.2% water
Linear Formula (CH3)2CHCO2H
Purity ≥99.5% (GC)
Purity ≥99.5%
Cation Traces Al: ≤0.5 mg/kg
Cation Traces Ba: ≤0.1 mg/kg
Cation Traces Bi: ≤0.1 mg/kg
Cation Traces Ca: ≤0.5 mg/kg
Cation Traces Cd: ≤0.05 mg/kg
Cation Traces Co: ≤0.02 mg/kg
Cation Traces Cr: ≤0.02 mg/kg
Cation Traces Cu: ≤0.02 mg/kg
Cation Traces Fe: ≤0.1 mg/kg
Cation Traces K: ≤0.5 mg/kg
Auto Ignition Point 824 °F
Boiling Point 153-154 °C(lit.)
Density 0.95 g/mL at 25 °C(lit.)
Flash Point 55 °C
Flash Point 131 °F
Melting Point -47 °C(lit.)
Refractive Index n20/D 1.393(lit.)
Refractive Index n20/D 1.393
Vapor Density 3.04 (vs air)
Vapor Pressure 1.5 mmHg ( 20 °C)
Explode Limits 10 %
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H302-H312
European Hazard Symbols Harmful Harmful (Xn)
MSDS Link Download
GHS Precautionary statements P280
RID/ADR UN 2529 3/PG 3
Risk Statements 21/22
Hazard Class 3
UN Number 2529
Packing Group 3
German water hazard class 1

DETAILS

REFERENCES