1.01845

tert-Butyl methyl ether

for liquid chromatography LiChrosolv^®

• Synonym(s): tert-Butyl methyl ether, MTBE, MTB, 2-Methoxy-2-methylpropane, Methyl tert-butyl ether, TBME
• Linear Formula: (CH₃)₃COCH₃
• CAS Number: 1634-04-4
• Molecular Weight: 88.15
• MDL number: MFCD00008812
• UNSPSC Code: 12191502
• EC Index Number: 216-653-1
• NACRES: NA.03

Properties

• vapor pressure: 268 hPa ( 20 °C)
• Quality Level: 100
• product line: LiChrosolv^®
• grade: isocratic
• assay: ≥99.8% (GC)
• form: liquid
• autoignition temp.: 460 °C
• potency: >2000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 1.5-8.5 % (v/v)
• technique(s): HPLC: suitable
• impurities: ≤0.0002 meq/g Acidity; ≤0.0002 meq/g Alkalinity; ≤0.02% Water
• evapn. residue: ≤2.0 mg/L
• transmittance: 240 nm, ≥60%; 255 nm, ≥85%; 280 nm, ≥98%
• kinematic viscosity: 0.409 cSt(40 °C)
• bp: 55.3 °C/1013 hPa
• mp: -108.6 °C
• transition temp: flash point -28 °C
• solubility: 42 g/L
• density: 0.74 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/C5H12O/c1-5(2,3)6-4/h1-4H3
• InChI key: BZLVMXJERCGZMT-UHFFFAOYSA-N

Description

General description

LiChrosolv^® solvents provide high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level. This makes them ideal for reproducible separations.

Application

Intended for HPLC and UHPLC-MS applications.

Used as an extraction solvent to analyze nucleotides of Drosophila gut microbiome in flies prior to LC-MS analysis.

Features and Benefits

• suitability tested and specified for UHPLC-MS and UHPLC-UV: for analytical flexibility
• specified quality in positive and negative in positive and negative electrospray ionization (ESI) and atmospheric-pressure chemical ionization-mass spectrometry (APCI-MS) for lowest detection limits and confidence in analyses for all important MS modes (test 1)

—ESI/APCI (+) < 2 ppb
—ESI/APCI (-) < 10 ppb

• lowest impurity profile: for interference-free baselines (test 2)
• Microfiltered through 0.2 μm filter (test 3) to provide

—a long lifespan to filters and mechanical parts of HPLC systems
—reduced risk of column clogging

• packed in borosilicate glass bottles for minimized metal ion contaminations
• lowest levels of trace metal impurities for a minimum metal ion adduct formation

—<5 ppb

• lowest level of polyethylene glycol (PEG) impurities in UHPLC-MS solvent lineup (PEG S/N signal-to-noise-ratio < 50)

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Purity (GC): ≥ 99.8 %
Identity (IR): conforms
Evaporation residue: ≤ 2.0 mg/l
Water: ≤ 0.02 %
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Transmission (at 240 nm): ≥ 60 %
Transmission (at 255 nm): ≥ 85 %
Transmission (from 280 nm): ≥ 98 %
Filtered by 0.2 µm filter

Other Notes

Explore various lab safety accessories and equipment for safe handling of solvents to increase your safety level from the first usage.

Legal Information

LICHROSOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225 - H315
• pcodes: P210 - P233 - P240 - P241 - P242 - P303 + P361 + P353
• Hazard Classifications: Flam. Liq. 2 - Skin Irrit. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: -18.4 °F - closed cup
• flash_point_c: -28 °C - closed cup