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/449/386/product-dating-information-mk.pdf
选择尺寸
About This Item
等级
for analytical purposes
质量水平
蒸汽密度
1.1 (vs air)
蒸汽压
50 mmHg ( 20 °C)
96 mmHg ( 25 °C)
表单
liquid
自燃温度
878 °F
浓度
25 wt. % in methanol
折射率
n20/D 1.37
密度
0.945 g/mL at 25 °C
SMILES字符串
[Na+].C[O-]
InChI
1S/CH3O.Na/c1-2;/h1H3;/q-1;+1
InChI key
WQDUMFSSJAZKTM-UHFFFAOYSA-N
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警示用语：
Danger
危险分类
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
靶器官
Eyes,Central nervous system
补充剂危害
储存分类代码
3 - Flammable liquids
WGK
WGK 2
闪点(°F)
60.0 °F - closed cup - Solvent
闪点(°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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Helpful?
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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
Helpful?
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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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