Home Categories Chemical Reagents Tetramethylurea
A7729112

Tetramethylurea , 99.5% , 632-22-4

Synonym(s):
1,1,3,3-Tetramethylurea;TMU

CAS NO.:632-22-4

Empirical Formula: C5H12N2O

Molecular Weight: 116.16

MDL number: MFCD00008319

EINECS: 211-173-9

Pack Size Price Stock Quantity
50ML RMB135.20 In Stock
250ML RMB399.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: −1 °C(lit.)
Boiling point: 177 °C(lit.)
Density  0.968 g/mL at 20 °C(lit.)
refractive index  n20/D 1.451(lit.)
Flash point: 150 °F
storage temp.  Inert atmosphere,Room Temperature
solubility  Miscible with water, petroleum ether and common solvents.
form  Liquid
pka 2.0(at 25℃)
color  Clear colorless to pale yellow
Relative polarity 5
PH 5-8 (25℃, 1M in H2O)
Odor faint pleasant odor
Water Solubility  H2O: 1 M at 20 °C, miscible
Merck  14,9230
BRN  773898
Dielectric constant 24.460000000000001
InChIKey AVQQQNCBBIEMEU-UHFFFAOYSA-N

Description and Uses

Tetramethylurea is used as a solvent in dyestuff industries, in condensation reaction and intermediates in surfactant. It is utilized for base catalyzed isomerization and alkylation hydrocyanation due to its low permittivity. It reacts with oxalyl chloride to prepare tetramethyl chloroformamidinium chloride, which is used for the conversion of carboxylic acids and dialkyl phosphates to anhydrides and pyrophosphates respectively.

Safety

Symbol(GHS) 
GHS05,GHS07,GHS08
Signal word  Danger
Hazard statements  H302-H315-H318-H360D
Precautionary statements  P202-P280-P301+P312-P302+P352-P305+P351+P338-P308+P313
Hazard Codes  Xn,T
Risk Statements  22-61
Safety Statements  53-45
RIDADR  NA 1993 / PGIII
WGK Germany  3
RTECS  YU2625000
3-10
TSCA  Yes
HS Code  29241900
Toxicity LD50 i.v. in rats: 1.1 g/kg (Lüttringhaus, Dirksen)

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