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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)

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

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

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)
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
Zulfiqar A Bhutta et al.
Lancet (London, England), 382(9890), 452-477 (2013-06-12)
Maternal undernutrition contributes to 800,000 neonatal deaths annually through small for gestational age births; stunting, wasting, and micronutrient deficiencies are estimated to underlie nearly 3·1 million child deaths annually. Progress has been made with many interventions implemented at scale and
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