34918

2,2,4-Trimethylpentane

≥99.5% (GC)

• Synonym(s): Isooctane
• Linear Formula: (CH₃)₂CHCH₂C(CH₃)₃
• CAS Number: 540-84-1
• Molecular Weight: 114.23
• Beilstein/REAXYS Number: 1696876
• EC Number: 208-759-1
• MDL number: MFCD00008943
• UNSPSC Code: 12190000

Properties

• vapor density: 3.9 (vs air)
• vapor pressure: 41 mmHg ( 21 °C)
• assay: ≥99.5% (GC)
• autoignition temp.: 745 °F
• expl. lim.: 6 %
• technique(s): UV/Vis spectroscopy: suitable
• impurities: ≤0.0005% non-volatile matter; ≤0.001% free acid (as CH₃COOH); ≤0.005% water (Karl Fischer); ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365 nm
• transmittance: 210 nm, ≥50%; 220 nm, ≥80%; 230 nm, ≥90%; 245 nm, ≥97%; 255 nm, ≥99%
• refractive index: n20/D 1.391 (lit.)
• bp: 98-99 °C (lit.)
• mp: −107 °C (lit.)
• density: 0.692 g/mL at 25 °C (lit.)
• suitability: passes test for IR spectroscopy; passes test for suitability for UV spectroscopy
• SMILES string: CC(C)CC(C)(C)C
• InChI: 1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3
• InChI key: NHTMVDHEPJAVLT-UHFFFAOYSA-N

Description

Other Notes

Pertains only in Germany: unversteuert

Safety Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H225,H304,H315,H336,H410
• pcodes: P210 - P233 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Central nervous system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 10.4 °F - closed cup
• flash_point_c: -12 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter