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
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156256
Natriummethoxid -Lösung
25 wt. % in methanol, solution
Synonym(e):
Natriummethylat -Lösung
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Über diesen Artikel
Produktname
Natriummethoxid -Lösung, 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
Dieser Artikel | |||
|---|---|---|---|
| form liquid | form liquid | form liquid | form liquid |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| 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 0.868 g/mL at 25 °C |
| vapor pressure 50 mmHg ( 20 °C), 96 mmHg ( 25 °C) | vapor pressure - | vapor pressure - | vapor pressure - |
| vapor density 1.1 (vs air) | vapor density - | vapor density - | vapor density - |
| refractive index n20/D 1.37 | refractive index - | refractive index - | refractive index n20/D 1.385 |
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signalword
Danger
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
Lagerklasse
3 - Flammable liquids
flash_point_f
60.0 °F - closed cup - Solvent
flash_point_c
15.55 °C - closed cup - Solvent
Zulassungslistungen
Zulassungslistungen werden hauptsächlich für chemische Produkte erstellt. Für nicht-chemische Produkte können hier nur begrenzte Angaben gemacht werden. Kein Eintrag bedeutet, dass keine der Komponenten gelistet ist. Es liegt in der Verantwortung des Benutzers, die sichere und legale Verwendung des Produkts zu gewährleisten.
67-56-1
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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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