Iodine

CAS Number

7553-56-2

EC Number

231-442-4

Industries: Pharma & Healthcare Water & Wastewater Treatment

What is Iodine?

Iodine (CAS 7553-56-2), also known as molecular iodine, is a halogen element supplied in solid form for industrial and pharmaceutical use.

Where is Iodine used?

Biocide and chemical intermediate
Water treatment: active disinfectant eliminating bacteria, viruses, and protozoa
Pharmaceuticals: starting material for iodine-based antiseptics and contrast media
Thyroid-related active ingredients
Personal care: antimicrobial activity in topical antiseptics, wound care solutions and surgical scrubs
Specialty chemical synthesis and analytical laboratories: reagent and oxidizing agent

Good to know: Resublimed iodine is a recognized high-purity specification commonly required in pharmaceutical and analytical applications.

Other Names (Synonyms)

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What are the physical properties of Iodine?

Melting Point 113.7 °C

Boiling Point 184.4 °C @ Press: 800 Torr

Density 4.9 g/cm³

Flash Point <10°C

Appearance Grey to purple solid

Color Red-brown

Odor Sharp, characteristic odor

Form particles (round)

Water Solubility 0.3 g/L (20 ºC)

Vapor Pressure 0.31 mm Hg ( 25 °C)

pH 5.4 (H2O)(saturated solution)

Log P 2.49 at 20℃

How is Iodine classified and handled safely? Learn More

Warning

GHS07· Irritant GHS09· Environmental Hazard GHS08· Health Hazard GHS06· Toxic

Hazard Statements

H302 Harmful if swallowed

H312 Harmful in contact with skin

H315 Causes skin irritation

H317 May cause an allergic skin reaction

Precautionary Statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P264 Wash … thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

Which trade and regulatory codes apply to Iodine?

HS Code 28012000

UN Number 2056

ADR Class 3

Packing Group II

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

WGK (Germany) 2