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83379

Sigma-Aldrich

Mercury(II) iodide red

puriss. p.a., ACS reagent, red, ≥99.0% (RT)

Synonym(s):

Mercuric iodide red

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About This Item

Empirical Formula (Hill Notation):
HgI2
CAS Number:
7774-29-0
Molecular Weight:
454.40
EC Number:
231-873-8
MDL number:
MFCD00011044
UNSPSC Code:
12352302
PubChem Substance ID:
329769074
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

Assay

≥99.0% (RT)

form

powder

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤20 mg/kg
Hg+: ≤1000 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

I[Hg]I

InChI

1S/Hg.2HI/h;2*1H/q+2;;/p-2

InChI key

YFDLHELOZYVNJE-UHFFFAOYSA-L

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General description

Mercury(II) iodide red (HgI2) is formed during iodometric analysis.

Application

Mercury(II) iodide may be used in the preparation of mercury(II) acetate and di­iodo­bis(1-methyl-1,3-imidazolium-2-thiol­ato-S)­mercury(II).

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Diiodobis (1-methyl-1, 3-imidazolium-2-thiolato-S) mercury (II).
Pavlovic G, et al.
Acta Crystallographica Section C, Crystal Structure Communications, 56(7), 801-803 (2000)
Eagleson M.
Concise Encyclopedia Chemistry, 637-637 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 542-542 (1994)
[List of compounds used as cosmetics and reported as containing skin-lightening ingredients that are dangerous for health].
Annales de dermatologie et de venereologie, 138(5), 443-446 (2011-05-17)
G Gras et al.
Toxicological European research. Recherche europeenne en toxicologie, 3(4), 175-178 (1981-07-01)
The use of skin-lightening preparations appears to be a problem for the coloured women in Africa as well as for the Black People in general. The mercurial creams occupy a place of choice into the most useful products for the
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