If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
426318
Tetramethylammonium hydroxide solution
1.0 M±0.02 M in H₂O, solution, ACS reagent grade
Synonym(s):
N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
250 mL | Available to ship TODAYfromMILWAUKEE | $58.80 |
1 L | Available to ship TODAYfromMILWAUKEE | $179.00 $152.15 |
About This Item
$58.80
Available to ship TODAYDetails
Product Name
Tetramethylammonium hydroxide solution, ACS reagent
grade
ACS reagent
Quality Segment
form
liquid
reaction suitability
core: ammonium
concentration
1.0 M±0.02 M in H2O
ign. residue
≤5 ppm
color
APHA: ≤10
refractive index
n
bp
100 °C
density
1.005 g/mL at 25 °C
anion traces
chloride (Cl-): ≤0.03%
cation traces
K: ≤2 ppm, Na: ≤2 ppm
functional group
amine
SMILES string
[OH-].C[N+](C)(C)C
InChI
1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1
InChI key
WGTYBPLFGIVFAS-UHFFFAOYSA-M
Application
- A reagent in the organocatalyzed photoinduced Birch reduction of arenes to 1,4-cyclohexadienes.
- A catalyst to synthesize 1,2-dihydro-1-arylnaphtho-oxazine-3-one derivatives via one-pot three-component condensation reaction of 2-naphthol, aromatic aldehydes, and urea.
- A peptizing agent for magnetite nanoparticles to promote repulsive stabilization forces.
- A template in the hydrothermal synthesis of hierarchical zeolite T aggregates with different sizes.
1 of 1
This Item | |||
|---|---|---|---|
| description ACS reagent | description 10 wt. % in H2O | description 25 wt. % in H2O | description 1.0 M in H2O |
| grade ACS reagent | grade - | grade - | grade - |
| concentration 1.0 M±0.02 M in H2O | concentration 10 wt. % in H2O | concentration 25 wt. % in H2O | concentration 1.0 M in H2O |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| form liquid | form - | form liquid | form liquid |
| bp 100 °C | bp - | bp - | bp - |
| density 1.005 g/mL at 25 °C | density 1.006 g/mL at 25 °C | density 1.016 g/mL at 25 °C | density 1.012 g/mL at 25 °C |
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Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2 Dermal - STOT SE 2
target_organs
Central nervous system, Liver,thymus
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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