molecular iodine

CAS7553-56-2

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Identification

CAS Number: 7553-56-2
EC Number: 231-442-4
UN Number: 3495
Index Number: 053-001-00-3
PubChem CID: 807

Physical-chemical properties

Molecular Formula: I2
Molar Mass: 253.81 g/mol
IUPAC Name: molecular iodine

Chemical Identifiers

InChI: InChI=1S/I2/c1-2
InChI Key: PNDPGZBMCMUPRI-UHFFFAOYSA-N

Overview

molecular iodine (CAS: 7553-56-2) is a chemical compound widely used in industry. The molecular formula is I2. The molar mass is 253.81 g/mol.

Safety & Classification

Warning

Classification:

Acute Tox. 4 *; Acute Tox. 4 *; Aquatic Acute 1

GHS Pictograms

Exclamation Mark

GHS07

Harmful. May cause irritation, allergic reactions, or drowsiness.

Environment

GHS09

Environmental hazard. Toxic to aquatic life with long lasting effects.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H332

Harmful if inhaled.

H312

Harmful in contact with skin.

H400

Very toxic to aquatic life.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

+P304IF INHALED:
+P340Remove person to fresh air and keep comfortable for breathing.
+P311Call a POISON CENTER/doctor.

Related hazard statements:

H332

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

+P302IF ON SKIN:
+P352Wash with plenty of water.
+P361Take off immediately all contaminated clothing.
+P313Get medical advice/attention.

Related hazard statements:

H312

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number	3495
ADR Class	8
Packing Group	III
Tunnel Code	E
Proper Shipping Name	Iod
Marine Pollutant	No

Frequently Asked Questions

What is molecular iodine?

molecular iodine (CAS 7553-56-2) is a chemical substance with the formula I2 used in various industrial applications.

What are the properties of molecular iodine?

molecular iodine has a molar mass of 253.81 g/mol. It is classified as Acute Tox. 4 *; Acute Tox. 4 *; Aquatic Acute 1. See the technical data above for more details.

How to store molecular iodine safely?

molecular iodine should be stored according to the Safety Data Sheet instructions. Follow the GHS labeling and keep the substance in a cool, dry and well-ventilated place.

Is molecular iodine dangerous?

molecular iodine carries the signal word "Warning". 2 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy molecular iodine?

You can order molecular iodine (CAS 7553-56-2) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.