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Tetramethylguanidine CAS 80-70-6 TMG

Tetramethylguanidine is a colorless oily liquid with a boiling point of 160-162 ℃, a density of 0.918, and a refractive index of 1.4692. It is an organic strong base that is soluble in toluene, cyclohexanone, ethanol, and can also be dissolved in water. It is easily hydrolyzed into tetramethylurea in alkaline aqueous solutions and is corrosive. It is generally packaged in galvanized iron drums.
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  • 80-70-6

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  • 80-70-6

Tetramethylguanidine Basic information
Product Name: Tetramethylguanidine
CAS: 80-70-6
MF: C5H13N3
MW: 115.18
EINECS: 201-302-7
Mol File: 80-70-6.mol
Tetramethylguanidine Chemical Properties
Melting point  -30 °C
Boiling point  162-163 °C (lit.)
density  0.916 g/mL at 20 °C (lit.)
vapor pressure  0.2 mm Hg ( 20 °C)
refractive index  n20/D 1.469
Fp  140 °F
storage temp.  Store below +30°C.
solubility  Acetonitrile (Slightly), DMSO (Slightly), Methanol (Slightly)
pka 15.20±0.70(Predicted)
form  Liquid
color  APHA: ≤150
PH 12.7 (10g/l, H2O, 25℃)
Relative polarity 5.5
Odor mild ammoniacal odor
explosive limit 1.0-7.5%(V)
Water Solubility  miscible
Sensitive  Air Sensitive
BRN  969608
Dielectric constant 23.1
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, mineral and organic acids, carbon dioxide. Air-sensitive.
InChIKey KYVBNYUBXIEUFW-UHFFFAOYSA-N
LogP -0.49 at 20℃
CAS DataBase Reference 80-70-6(CAS DataBase Reference)
NIST Chemistry Reference N,N,N',N'-Tetramethylguanidine(80-70-6)
EPA Substance Registry System Guanidine, N,N,N',N'-tetramethyl- (80-70-6)

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