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158429

Sigma-Aldrich

Diiodomethane

ReagentPlus®, 99%, contains copper as stabilizer

Sinonimo/i:

Methylene iodide

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25 G
CHF 49.70
100 G
CHF 124.00
500 G
CHF 285.00

CHF 49.70

Spedizione prevista il23 marzo 2025

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25 G
CHF 49.70
100 G
CHF 124.00
500 G
CHF 285.00

About This Item

Formula empirica (notazione di Hill):
CH2I2
Numero CAS:
75-11-6
Peso molecolare:
267.84
Beilstein:
1696892
Numero CE:
200-841-5
Numero MDL:
MFCD00001079
Codice UNSPSC:
12352100
ID PubChem:
24849735
NACRES:
NA.21
Saggio:
99%
Stato:
liquid

CHF 49.70

Spedizione prevista il23 marzo 2025

Richiedi un ordine bulk

Densità del vapore

9.25 (vs air)

Livello qualitativo

200

Nome Commerciale

ReagentPlus®

Saggio

99%

Stato

liquid

contiene

copper as stabilizer

P. ebollizione

67-69 °C/11 mmHg (lit.)

Punto di fusione

5-8 °C (lit.)

Densità

3.325 g/mL at 25 °C (lit.)

Gruppo funzionale

iodo

Stringa SMILE

ICI

InChI

1S/CH2I2/c2-1-3/h1H2
NZZFYRREKKOMAT-UHFFFAOYSA-N

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Descrizione generale

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]

Applicazioni

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]

Note legali

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

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H302,H412

Classi di pericolo

Acute Tox. 4 Oral - Aquatic Chronic 3

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

230.0 °F - closed cup

Punto d’infiammabilità (°C)

110 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (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
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
Solvent-and catalysts-free immobilization of tannic acid and polyvinylpyrrolidone onto PMMA surface by DBD plasma.
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Magnetic separation, a promising bioseparation technology, is confronted with the challenges in recovery and recycle of magnetic matters during algae harvesting for biofuel extraction. The thermodynamic method was used to characterize the surface interactions between MNPs and algae cells. Three
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Questions

1–3 of 3 Questions  

  1. 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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  2. 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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  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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