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158429

Sigma-Aldrich

Diiodomethane

ReagentPlus®, 99%, contains copper as stabilizer

Synonim(y):

Methylene iodide

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About This Item

Wzór empiryczny (zapis Hilla):
CH2I2
Numer CAS:
75-11-6
Masa cząsteczkowa:
267.84
Beilstein:
1696892
Numer WE:
200-841-5
Numer MDL:
MFCD00001079
Kod UNSPSC:
12352100
Identyfikator substancji w PubChem:
24849735
NACRES:
NA.21

315,00 zł

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klasa czystości

reagent

Poziom jakości

200

gęstość pary

9.25 (vs air)

linia produktu

ReagentPlus®

Próba

99%

Formularz

liquid

zawiera

copper as stabilizer

bp

67-69 °C/11 mmHg (lit.)

mp

5-8 °C (lit.)

gęstość

3.325 g/mL at 25 °C (lit.)

grupa funkcyjna

iodo

ciąg SMILES

ICI

InChI

1S/CH2I2/c2-1-3/h1H2

Klucz InChI

NZZFYRREKKOMAT-UHFFFAOYSA-N

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Opis ogólny

Diiodomethane is a solvent used as a halogen bond donor toward metal-bound halides.[1]

Diiodomethane (CH2I2) is an iodine containing organic compound. Its decomposition in acetonitrile initiated by 310nm light has been investigated.[2] Femtosecond pump-probe spectroscopic and ab initio molecular dynamics simulations studies of the photodecomposition of CH2I2 suggest the formation of the isomer of diiodomethane (CH2I-I) as hot photoproduct.[2][3] In the atmosphere, it undergoes photolysis in the presence of ozone to afford iodine oxide (IO) which results in the formation of aerosols. Its vacuum ultraviolet (VUV) photoabsorption spectrum has been reported.[4]

Zastosowanie

Diiodomethane has been used as a probe liquid for evaluation of the polar and dispersive components of the surface energy of the catecholamine coated fiber surfaces.[5] It may be used for the preparation of cyclopropyl ketones, esters and amides.[6]
Diiodomethane may be used as a probe solvent in contact angle measurement to analyze the hydrophilicity of polymer surfaces.[7]

Informacje prawne

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
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Piktogramy

Exclamation mark
GHS07

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

H302,H412

Zwroty wskazujące środki ostrożności

P264 - P270 - P273 - P301 + P312 - P501

Klasyfikacja zagrożeń

Acute Tox. 4 Oral - Aquatic Chronic 3

Kod klasy składowania

10 - Combustible liquids

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

230.0 °F - closed cup

Temperatura zapłonu (°C)

110 °C - closed cup

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certyfikaty analizy (CoA)

Lot/Batch Number
STBK3115
STBL3939
STBL3628
0000142017
0000110585

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Michael Odelius et al.
The Journal of chemical physics, 121(5), 2208-2214 (2004-07-21)
Photodissociation of diiodomethane (CH2I2) in acetonitrile solution has been studied with ab initio molecular dynamics simulations, which show how the iso-diiodomethane photoproduct (CH2I-I) can be formed. The first excited state, described by the "restricted open-shell Kohn-Sham" density functional method, is
Solvent-and catalysts-free immobilization of tannic acid and polyvinylpyrrolidone onto PMMA surface by DBD plasma.
Klebert S, et al.
Plasma Processes and Polymers (2017)
Anuvab Mandal et al.
The Journal of chemical physics, 140(19), 194312-194312 (2014-05-24)
The electronic absorption spectrum of diiodomethane in the 30,000-95,000 cm(-1) region is investigated using synchrotron radiation; the spectrum in the 50,000-66,500 cm(-1) region is reported for the first time. The absorption bands in the 30,000-50,000 cm(-1) region are attributed to
Nowsheen Goonoo et al.
Materials science & engineering. C, Materials for biological applications, 76, 13-24 (2017-05-10)
In this paper, the biomineralization potential and cellular response of novel blend films of the anionic sulfated polysaccharides kappa-carrageenan (KCG) and fucoidan (FUC) derived from seaweeds with semi-crystalline polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-valerate (PHBV), respectively, were analyzed. The incorporation of KCG
Mohd I Ishak et al.
Journal of colloid and interface science, 583, 414-424 (2020-10-05)
Frictional and nanomechanical properties of nanostructured polymer surfaces are important to their technological and biomedical applications. In this work, poly(ethylene terephthalate) (PET) surfaces with a periodic distribution of well-defined nanopillars were fabricated through an anodization/embossing process. The apparent surface energy
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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  3. What is the shelf life of this material with the copper stabilizer?

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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