Skip to Content
Merck

Skip To

207772

Iodine

ACS reagent, ≥99.8%, solid

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice

About This Item

Linear Formula:
I2
CAS Number:
Molecular Weight:
253.81
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
38050601
UNSPSC Code:
12141916
EC Number:
231-442-4
MDL number:
Beilstein/REAXYS Number:
3587194
Assay:
≥99.8%
Grade:
ACS reagent
Form:
solid
Pricing and availability is not currently available.
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


grade

ACS reagent

Quality Segment

vapor density

9 (vs air)

vapor pressure

0.31 mmHg ( 25 °C), 1 mmHg ( 38.7 °C)

assay

≥99.8%

form

solid

reaction suitability

reaction type: Halogenations

resistivity

1.3E15 μΩ-cm

impurities

≤0.01% nonvolatiles

bp

184 °C (lit.)

mp

113 °C (lit.)

anion traces

Cl- and Br-: ≤0.005%

storage temp.

room temp

SMILES string

II

InChI

1S/I2/c1-2

InChI key

PNDPGZBMCMUPRI-UHFFFAOYSA-N

General description

Iodine exhibits exceptionally high dielectric polarization in various solvents (dioxane, isobutylene, p-xylene and benzene).

Application

Iodine has been used for the easy visualization of 9-bromononanoic acid, allyl ester by thin layer chromatography (TLC). It has also been used for the preparation of oxidation solution, required for the synthesis of oligodeoxynucleotides bearing 3′-terminal phosphorothioate.
Iodine may be used to catalyze:
  • Synthesis of 5-(4-nitrophenyl)-10,15,20-triphenylporphyrin.
  • Oxidative C-H bond amination of saturated hydrocarbons.
  • Protection of amines with benzyloxycarbonyl (Cbz) group.
  • Direct oxidative coupling/annulation of β-keto esters or 2-pyridinyl-β-esters with alkenes to form dihydrofurans and indolizine, respectively.
  • Thiocyanation of aromatic systems to form aryl thiocyanates.
  • Esterification of cellulose with acetic anhydride to form cellulose triacetate.
Catalyst for synthesis of esters by condensation of carboxylic acids with alcohols or transfesterification.

A mild and efficient method for esterification and transesterification catalyzed by iodine

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
326143I3380376558
description

ACS reagent, ≥99.8%, solid

description

≥99.99% trace metals basis

description

ReagentPlus®, ≥99.8% (titration)

description

flakes, ReagentPlus®, ≥99%

form

solid

form

flakes, beads, chunks

form

-

form

flakes

assay

≥99.8%

assay

≥99.99% trace metals basis

assay

≥99.8% (titration)

assay

≥99%

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

100

grade

ACS reagent

grade

-

grade

-

grade

-

impurities

≤0.01% nonvolatiles

impurities

-

impurities

-

impurities

≤0.05% nonvolatile matter

anion traces

Cl- and Br-: ≤0.005%

anion traces

-

anion traces

-

anion traces

-


Still not finding the right product?

Explore all of our products under Iodine


signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT RE 1 Oral - STOT SE 3

target_organs

Respiratory system, Thyroid

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

flash_point_f

Not applicable

flash_point_c

Not applicable



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Questions

1–3 of 3 Questions  
  1. Can I dilute the powder in ddH2O and store it as such?

    1 answer
    1. The solubility and solution stability are not determined for this product. In general, iodine solutions can be stored at room temperature; however, a literature search is recommended for additional stability considerations.

      Helpful?

  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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  3. 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

      Helpful?

Reviews

No rating value

Active Filters