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57655

Sigma-Aldrich

Iodine

puriss., ≥99.5% (RT), particles (round)

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About This Item

Empirical Formula (Hill Notation):
I2
CAS Number:
7553-56-2
Molecular Weight:
253.81
Beilstein:
3587194
EC Number:
231-442-4
MDL number:
MFCD00011355
UNSPSC Code:
12141916
PubChem Substance ID:
329758329
NACRES:
SB.52

vapor density

9 (vs air)

Quality Level

200

vapor pressure

0.31 mmHg ( 25 °C)
1 mmHg ( 38.7 °C)

grade

puriss.

Assay

≥99.5% (RT)

form

particles (round)

resistivity

1.3E15 μΩ-cm

diam.

1-2 mm

bp

184 °C (lit.)

mp

113 °C (lit.)

SMILES string

II

InChI

1S/I2/c1-2

InChI key

PNDPGZBMCMUPRI-UHFFFAOYSA-N

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Application

Iodine may be used for the isomerization of β-carotene solutions in a study on the spectrophotometric quantification of total β-carotene in food additives.

Signal Word

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

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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A simple spectrophotometric determination of total β-carotene in food additives with varying E/Z-isomer ratios using an isobestic wavelength.
Schierle J, et al.
European Food Research and Technology, 215(3), 268-274 (2002)
Eagleson M.
Concise Encyclopedia Chemistry, 543-543 (1994)
A spectrophotometric investigation of the interaction of iodine with aromatic hydrocarbons.
Benesi HA and Hildebrand JH.
Journal of the American Chemical Society, 71(8), 2703-2707 (1949)
Michael B Zimmermann
Thyroid : official journal of the American Thyroid Association, 17(9), 829-835 (2007-10-25)
Iodine is required for the production of thyroid hormones, which are essential for normal brain development, and the fetus, newborn, and young child are particularly vulnerable to iodine deficiency. The iodine requirement increases during pregnancy and recommended intakes are in
Tim I M Korevaar et al.
The Journal of clinical endocrinology and metabolism, 98(11), 4382-4390 (2013-09-17)
Premature delivery is an important risk factor for child mortality and psychiatric, metabolic, and cardiovascular disease later in life. In the majority of cases, the cause of prematurity cannot be identified. Currently, it remains controversial whether abnormal maternal thyroid function
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