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
156256
Sodium methoxide solution
25 wt. % in methanol, solution
Synonym(s):
Sodium methylate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 mL | Check Cart for Availability | $55.80 |
1 L | Check Cart for Availability | $78.10 |
2.5 L | Check Cart for Availability | $152.00 |
18 L | Check Cart for Availability | $565.00 |
About This Item
$55.80
Product Name
Sodium methoxide solution, 25 wt. % in methanol
vapor density
1.1 (vs air)
Quality Segment
vapor pressure
50 mmHg ( 20 °C), 96 mmHg ( 25 °C)
form
liquid
autoignition temp.
878 °F
concentration
25 wt. % in methanol
refractive index
n20/D 1.37
density
0.945 g/mL at 25 °C
SMILES string
[Na+].C[O-]
InChI
1S/CH3O.Na/c1-2;/h1H3;/q-1;+1
InChI key
WQDUMFSSJAZKTM-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| description 25 wt. % in methanol | description ACS reagent, 0.5 M CH3ONa in methanol (0.5N) | description derivatization grade (GC derivatization), 0.5 M | description reagent grade, 95%, powder |
| form liquid | form liquid | form liquid | form powder |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| vapor pressure 96 mmHg ( 25 °C), 50 mmHg ( 20 °C) | vapor pressure - | vapor pressure - | vapor pressure 50 mmHg ( 20 °C) |
| density 0.945 g/mL at 25 °C | density 0.809 g/mL at 25 °C | density 0.805-0.817 g/mL at 20 °C | density - |
| refractive index n20/D 1.37 | refractive index - | refractive index - | refractive index - |
| vapor density 1.1 (vs air) | vapor density - | vapor density - | vapor density 1.1 (vs air) |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Met. Corr. 1 - Skin Corr. 1A - STOT SE 1
Target Organs
Eyes,Central nervous system
supp_hazards
Storage Class
3 - Flammable liquids
Flash Point (°F)
60.0 °F - closed cup - Solvent
Flash Point (°C)
15.55 °C - closed cup - Solvent
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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HI, does the Sodium methoxide solution come in a Sure-seal bottle?
1 answer-
Product 156256, Sodium methoxide solution is not packaged in a Sure/Seal™ bottle. The 156256-25mL, 156256-1L, and 156256-2.5L SKUs are packaged in amber glass bottles with PP caps and HDPE/PTFE liners. The 156256-18L is packaged in a carbon steel drum.
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