Description

n-Pentane 99%, 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: ≥99% (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): ≥ 99.0 %

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