Home Categories Organic Chemistry Tetramethylammonium hydroxide solution
A7826712

Tetramethylammonium hydroxide solution , Ultra -pure, 25%water solution, used for trace analysis , 75-59-2

Synonym(s):
TMAH solution

CAS NO.:75-59-2

Empirical Formula: C4H13NO

Molecular Weight: 91.15

MDL number: MFCD00008280

EINECS: 200-882-9

Update time: 2022-07-08

PRODUCT Properties

Melting point: °C
Boiling point: 110 °C
Density  0.866 g/mL at 25 °C
vapor pressure  17.5 mm Hg ( 20 °C)
refractive index  n20/D 1.384
Flash point: 80 °F
storage temp.  Store below +30°C.
solubility  Methanol (Sparingly), Water (Slightly)
form  Solution
color  APHA: ≤10
PH >13 (H2O, 20°C)
Odor strong ammonia-like odor
Water Solubility  Soluble in water.
Sensitive  Air Sensitive
Merck  14,9224
BRN  3558708
Stability: Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.
InChIKey WGTYBPLFGIVFAS-UHFFFAOYSA-M

Description and Uses

Tetramethylammonium hydroxide is a solid in the hydrated form or a colorless liquid with a strong ammonia-like odor. It is soluble in water, and corrosive to metals and tissue.

Tetramethylammonium hydroxide solution (25 wt.% solution in water) may be used as a base for pH adjustment to obtain hexagonal mesoporous aluminophosphate (TAP).

Safety

Symbol(GHS) 
GHS02,GHS05,GHS06,GHS08
Signal word  Danger
Hazard statements  H226-H300+H310-H314-H331-H370-H372-H412
Precautionary statements  P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C,T,F,T+,Xn
Risk Statements  24/25-34-20/21/22-39/23/24/25-23/24/25-10-21/22-25-21-11-67-36-52-48/24-27/28-23-35-36/38
Safety Statements  45-36/37/39-26-16-36/37-28
RIDADR  UN 3286 3/PG 2
WGK Germany  1
RTECS  PA0875000
4.4-10-34
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29239000

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