MERCK 101845 tert-Butyl methyl ether for liquid chromatography LiChrosolv®. 2.5 L
Catalogue Number	101845
Synonyms	MTBE, MTB, 2-Methoxy-2-methylpropane, Methyl tert-butyl ether
Description	tert-Butyl methyl ether
Overview	With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Product Information
CAS number	1634-04-4
EC index number	603-181-00-X
EC number	216-653-1
Hill Formula	C₅H₁₂O
Chemical formula	(CH₃)₃COCH₃
Molar Mass	88.15 g/mol
HS Code	2909 19 90
Structure formula Image

Applications
Application	tert-Butyl methyl ether for liquid chromatography LiChrosolv®. CAS 1634-04-4, EC Number 216-653-1, chemical formula (CH₃)₃COCH₃.

Physicochemical Information
Boiling point	55.3 °C (1013 hPa)
Density	0.74 g/cm3 (20 °C)
Explosion limit	1.5 - 8.5 %(V)
Flash point	-28 °C
Ignition temperature	460 °C
Melting Point	-108.6 °C
Vapor pressure	268 hPa (20 °C)
Viscosity kinematic	0.409 mm2/s (40 °C) no data available
Solubility	42 g/l

Toxicological Information
LD 50 oral	LD50 Rat > 2000 mg/kg
LD 50 dermal	LD50 Rabbit > 2000 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H225: Highly flammable liquid and vapour. H315: Causes skin irritation.
Precautionary Statement(s)	P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240: Ground/bond container and receiving equipment. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal Word	Danger
RTECS	KN5250000
Storage class	3 Flammable liquids
WGK	WGK 1 slightly water endangering
Disposal	1 Strongly contaminated halogen-free organic solvents: container A.

Safety Information
Hazard Symbols	Irritant Flammable
Categories of danger	highly flammable, irritant
R Phrase	R 11-38 Highly flammable.Irritating to skin.
S Phrase	S 9-16-24 Keep container in a well-ventilated place.Keep away from sources of ignition - No smoking.Avoid contact with skin.

Storage and Shipping Information
Storage	Store at +2 °C to +25 °C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 2398 , 3, II
Declaration (transport by air) IATA-DGR	UN 2398 , 3, II
Declaration (transport by sea) IMDG-Code	UN 2398 , 3, II

Specifications
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

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