Description
n-Pentane 95%, CG. – For general use
Synonym: Amyl hydride, n- Amyl hydride, pentane, Diethyl methane, 1,3-Dimethyl propane. 05S0021.
CAS No: 109-66-0.
Linear Formula: CH3(CH2)3CH3
Molecular Weight: 72.15
Beilstein: 969132
MDL number: MFCD00009498
EC Index Number: 203-692-4
Properties
Vapor Density: 2.48 (vs air)
Assay: ≥95% (GC)
Form: liquid
Autoignition Temp.: 500 °F
Potency: >2000 mg/kg LD50, oral (Rat)
Expl. lim.: ~8.3 %
Impurities: ≤0.001% Free acid (as CH3COOH)
Evapn. Residue: ≤0.005%
Refractive Index: n20/D 1.358 (lit.)
BP: 35-36 °C (lit.)
MP: −130 °C (lit.)
Transition Temp: flash point -48 °C (refers to pure substance)
Solubility: 0.4 g/L
Density: 0.626 g/mL at 25 °C (lit.)
Storage Temp.: 2-30°C
SMILES string: CCCCC
InChI: 1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3
InChI key: OFBQJSOFQDEBGM-UHFFFAOYSA-N
Analysis Note
Purity (GC): ≥ 95.0 %
Identity (IR): conforms
Free acid (as CH₃COOH): ≤ 0.001 %
Density (d 20 °C/ 4 °C): 0.626 – 0.628
Readily carbonizable substances: conforms
Evaporation residue: ≤ 0.005 %
Safety Information
Pictograms: GHS02,GHS07,GHS08,GHS09
Signal Word: Danger
Hazard Statements: H225 – H304 – H336 – H411
Precautionary Statements: P210 – P233 – P240 – P273 – P301 + P310 – P331
Hazard Classifications: Aquatic Chronic 2 – Asp. Tox. 1 – Flam. Liq. 2 – STOT SE 3
Target Organs: Central nervous system
Supplementary Hazards: EUH066
Storage Class Code: 3 – Flammable liquids
WGK: WGK 2
Flash Point(F): -40.0 °F
Flash Point(C): -40 °C