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Iodine

CAS Number
7553-56-2
EC Number
231-442-4
Chemical Formula
I2
Molecular Weight
253.8089 g/mol

Description

Iodine (CAS 7553-56-2 ), also known as molecular iodine, is a halogen element supplied in solid form for industrial and pharmaceutical use. It functions primarily as a biocide and chemical intermediate. This material acts as a disinfectant across a broad range of manufacturing and treatment processes. In water treatment, it is used as an active disinfectant to eliminate bacteria, viruses, and protozoa. It is essential for potable water systems and emergency purification applications. Pharmaceutical manufacturers use it as a key starting material for producing iodine-based antiseptics and contrast media. It is also utilized for thyroid-related active ingredients. In personal care formulations, it contributes antimicrobial activity to topical antiseptic products including wound care solutions and surgical scrubs. The substance also serves as a reagent and oxidizing agent in specialty chemical synthesis and analytical laboratory processes. It is supplied as dark grey-black crystalline flakes or granules. These granules feature a characteristic metallic luster. Standard commercial grades include USP , BP , and Ph. Eur. for pharmaceutical and healthcare applications, alongside technical grade for industrial use. Resublimed iodine is a recognized high-purity specification commonly required in pharmaceutical and analytical applications. This ensures the highest level of performance for sensitive chemical reactions. Contact us for supply of Iodine Request Quote

Other Names (Synonyms)

molecular iodine | iodine gas | Jod | element 53 | ₅₃I | Diiodine | Iodine crystals | Iodine sublimed

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point113.7 °C
Boiling Point184.4 °C @ Press: 800 Torr
Density4.9 g/cm³
Flash Point<10°C
AppearanceGrey to purple solid
ColorRed-brown
OdorSharp, characteristic odor
Formparticles (round)
Water Solubility0.3 g/L (20 ºC)
Vapor Pressure0.31 mm Hg ( 25 °C)
pH5.4 (H2O)(saturated solution)
Log P2.49 at 20℃

Safety & Handling

Warning
GHS07· IrritantGHS09· EnvironmentGHS08· Health HazardGHS06· Toxic

Hazard Statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H330Fatal if inhaled
H332Harmful if inhaled
H335May cause respiratory irritation
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects H302+H312+
H332Harmful if swallowed, in contact with skin or if inhaled

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28012000
UN Number2056
ADR Class3
Packing GroupII
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)2