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
19-2410
Methanol
≥99.8%, JIS special grade
Synonym(s):
Methyl alcohol
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About This Item
97.68 mmHg ( 20 °C)
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Product Name
Methanol, JIS special grade, ≥99.8%
InChI
1S/CH4O/c1-2/h2H,1H3
SMILES string
CO
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
grade
JIS special grade
vapor density
1.11 (vs air)
vapor pressure
410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)
assay
≥99.8%
form
liquid
autoignition temp.
725 °F
expl. lim.
36 %
availability
available only in Japan
dilution
(for analytical testing)
refractive index
n20/D 1.329 (lit.)
bp
64.7 °C (lit.)
mp
−98 °C (lit.)
density
0.791 g/mL at 25 °C (lit.)
format
neat
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This Item | 19-2420 | 19-2400 | 154903 |
|---|---|---|---|
| assay ≥99.8% | assay ≥99.5% | assay ≥99.96% (GC) | assay ≥99.9% |
| grade JIS special grade | grade SAJ first grade | grade SAJ special grade | grade ACS spectrophotometric grade |
| form liquid | form liquid | form liquid | form liquid |
| vapor density 1.11 (vs air) | vapor density 1.11 (vs air) | vapor density 1.11 (vs air) | vapor density 1.11 (vs air) |
| expl. lim. 36 % | expl. lim. 36 % | expl. lim. 36 % | expl. lim. 36 % |
| vapor pressure 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C) | vapor pressure 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C) | vapor pressure 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C) | vapor pressure 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C) |
Application
- Analyte protectant approach to protect amide-based synthetic cannabinoids from degradation and esterification during GC-MS analysis.: This study demonstrates the use of methanol as an effective solvent in gas chromatography-mass spectrometry (GC-MS) for analyzing volatile organic compounds, ensuring accurate and reliable results in chemical analysis (Alasiri AM et al., 2024).
- Low-Temperature Methane Activation Reaction Pathways over Mechanochemically-Generated Ce(4+)/Cu(+) Interfacial Sites.: This article explores the role of methanol in facilitating low-temperature methane activation, presenting new insights into catalytic processes that could revolutionize industrial applications (Trovarelli A et al., 2024).
- A novel magnetite C18/paracetamol/alginate adsorbent bead for simultaneous extraction of synthetic antioxidants and bisphenol A in water samples.: Discusses the synthesis of innovative adsorbent materials where methanol plays a crucial role in the extraction and purification processes, enhancing the detection of contaminants in environmental samples (Rujiralai T et al., 2024).
signalword
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
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
53.6 °F
flash_point_c
12 °C
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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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