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
1.88009
Aquastar® CombiMethanol
one component solvent for volumetric Karl Fischer titration, max. 0.01% H₂O, Aquastar®
Synonym(s):
Methanol, MeOH, Hydroxymethane, Methyl alcohol, Carbinol, Methyl alcohol
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 L | Check Cart for Availability | $33.60 |
2.5 L | Check Cart for Availability | $72.30 |
About This Item
Product Name
CombiMethanol, Solvent for volumetric Karl Fischer titration with one component reagents max. 0.01% H2O Aquastar®
vapor density
1.11 (vs air)
Quality Segment
vapor pressure
128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
product line
Aquastar®
form
liquid
autoignition temp.
725 °F
potency
5628 mg/kg LD50, oral (Rat), 17100 mg/kg LD50, skin (Rabbit)
expl. lim.
36 %
reaction suitability
reaction type: volumetric
technique(s)
Karl-Fischer titration: suitable, titration: suitable
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.)
format
single component solution
storage temp.
15-25°C
SMILES string
CO
InChI
1S/CH4O/c1-2/h2H,1H3
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
Analysis Note
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description Solvent for volumetric Karl Fischer titration with one component reagents max. 0.01% H2O Aquastar® | description Laboratory Reagent, ≥99.6% | description for liquid chromatography LiChrosolv® | description gradient grade for liquid chromatography LiChrosolv® Reag. Ph Eur, Reag. ChP |
| reaction suitability reaction type: volumetric | reaction suitability - | reaction suitability - | reaction suitability - |
| technique(s) Karl-Fischer titration: suitable | technique(s) - | technique(s) HPLC: suitable | technique(s) HPLC: suitable |
| format single component solution | format neat | format neat | format neat |
| form liquid | form liquid | form liquid | form liquid |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| transition temp flash point 9.7 °C | transition temp - | transition temp flash point 9.7 °C | transition temp flash point 9.7 °C |
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
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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