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
1.06012
甲醇
≥99.9% (GC), anhydrous, reagent grade, for extraction and analytical purposes
同義詞:
木酒精
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產品名稱
甲醇, anhydrous for analysis (max. 0.003% H2O)
grade
anhydrous
Quality Segment
vapor density
1.11 (vs air)
vapor pressure
128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
description
for analytical purposes, for extraction
assay
≥99.9% (GC)
form
liquid
autoignition temp.
725 °F
potency
5628 mg/kg LD50, oral (Rat), 17100 mg/kg LD50, skin (Rabbit)
expl. lim.
36 %
dilution
(for analytical testing)
impurities
≤0.0002 meq/g Alkalinity, ≤0.0005 meq/g Acidity, ≤0.003% Water, ≤0.05% Acetone (GC), ≤0.1% Ethanol (GC)
evapn. residue
≤10 mg/L
color
APHA: ≤10
refractive index
n
kinematic viscosity
0.54-0.59 cSt(20 °C)
bp
64.7 °C (lit.)
mp
−98 °C (lit.)
transition temp
flash point 9.7 °C
density
0.791 g/mL at 25 °C (lit.)
SMILES string
CO
application(s)
pharmaceutical
format
neat
storage temp.
2-30°C
InChI
1S/CH4O/c1-2/h2H,1H3
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
Application
- 纳米MnSO(4)在水溶液和甲醇-水混合物中缔合参数及与甘氨酸络合物形成的电导研究：热力学参数及其潜在应用。：该研究探讨了纳米硫酸锰在水和甲醇-水混合物中的电导特性，强调了热力学参数和潜在的分析应用（Rashad et al., 2024）。
- 电催化促进甲醇热催化脱氢生产高纯H(2)和CO。：该研究强调了甲醇在热催化脱氢过程中的作用，这对于产生高纯度的氢和一氧化碳至关重要，展示了甲醇在化学合成和分析化学中的重要性（Wu et al., 2024）。
Analysis Note
1 of 1
本產品 | |||
|---|---|---|---|
| application(s) pharmaceutical | application(s) - | application(s) food and beverages | application(s) environmental |
| Quality Level 300 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| grade anhydrous | grade ZerO2® | grade - | grade ACS reagent, anhydrous, reagent grade |
| assay ≥99.9% (GC) | assay 99.8% | assay ≥99.8% (GC) | assay ≥99.8% (GC) |
| form liquid | form liquid | form liquid | form liquid |
| mp −98 °C (lit.) | mp −98 °C (lit.) | mp −98 °C (lit.) | mp −98 °C (lit.) |
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Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
target_organs
Eyes,Central nervous system
存儲類別/等級
3 - Flammable liquids
wgk
WGK 2
flash_point_f
49.5 °F - closed cup
flash_point_c
9.7 °C - closed cup
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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?
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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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HI IS this bottle sealed with a rubber seal/septa to keep it dry? So that I have to use a needle to get my methanol?
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This bottle does not have a septum cap, for which you would need a needle to access. If you are looking for a methanol product which does have a septum cap, please see products 322415 and 322415.
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