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
270997
Dichloromethane
anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer
Synonym(s):
DCM, Methylene chloride
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InChI key
YMWUJEATGCHHMB-UHFFFAOYSA-N
InChI
1S/CH2Cl2/c2-1-3/h1H2
SMILES string
ClCCl
grade
anhydrous
agency
suitable for EPA 1613
vapor density
2.9 (vs air)
vapor pressure
24.45 psi ( 55 °C), 6.83 psi ( 20 °C), 6.86 psi ( 20 °C)
assay
≥99.8%
form
liquid
autoignition temp.
1223 °F
contains
40-150 ppm amylene as stabilizer
expl. lim.
22 %
technique(s)
gas chromatography (GC): suitable
impurities
≤0.001% water, ≤0.005% water (100 mL pkg)
evapn. residue
<0.0005%
refractive index
n20/D 1.424 (lit.)
bp
39.8-40 °C (lit.)
mp
−95 °C (lit.)
density
1.325 g/mL at 25 °C (lit.)
Quality Level
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This Item | D65100 | 32222-M | 32222 |
|---|---|---|---|
| technique(s) gas chromatography (GC): suitable | technique(s) - | technique(s) - | technique(s) - |
| Quality Level 200 | Quality Level 100, 200 | Quality Level 200 | Quality Level 200 |
| grade anhydrous | grade ACS reagent | grade ACS reagent, puriss. p.a. | grade ACS reagent, puriss. p.a. |
| assay ≥99.8% | assay ≥99.5% | assay ≥99.9% (GC) | assay ≥99.9% (GC) |
| form liquid | form liquid | form liquid | form liquid |
| expl. lim. 22 % | expl. lim. 22 % | expl. lim. 22 % | expl. lim. 22 % |
General description
Application
Packaging
related product
signalword
Warning
hcodes
Hazard Classifications
Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Central nervous system
wgk
WGK 2
ppe
Eyeshields, Faceshields, Gloves
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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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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