MSDS Number: I2680 * * * * * Effective Date: 07/27/07 * * * * *
Supercedes: 10/19/05

IODINE

1. Product Identification

Synonyms: Iodine crystals; iodine sublimed
CAS
No.: 7553-56-2
Molecular Weight: 253.81
Chemical
Formula: I2
Product Codes:
J.T. Baker: 2208, 2211

Mallinckrodt: 0969, 0975, 0984, 0990, 1004, 1008, 2785, 4467

2. Composition/Information on Ingredients

Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------

Iodine 7553-56-2 100% Yes

3. Hazards Identification

Emergency Overview
--------------------------

POISON! DANGER! CORROSIVE. CAUSES SEVERE IRRITATION OR BURNS TO EVERY
AREA OF CONTACT. MAY BE FATAL IF SWALLOWED OR INHALED. VAPORS CAUSE SEVERE
IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT. STRONG OXIDIZER. CONTACT WITH
OTHER MATERIAL MAY CAUSE FIRE. AFFECTS THE CARDIOVASCULAR AND CENTRAL NERVOUS
SYSTEMS. MAY CAUSE ALLERGIC SKIN OR RESPIRATORY REACTION.

SAF-T-DATA(tm) Ratings (Provided here for your
convenience)

-----------------------------------------------------------------------------------------------------------

Health Rating: 3 - Severe (Poison)
Flammability Rating: 0 - None

Reactivity Rating: 3 - Severe (Oxidizer)
Contact Rating: 3 - Severe
(Corrosive)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT &
APRON; VENT HOOD; PROPER GLOVES
Storage Color Code: White (Corrosive)

Potential Health Effects
----------------------------------

Inhalation:
Corrosive. Vapors severely irritate and can
burn the mucous membranes and respiratory tract. Excessive tears, rhinitis,
tightness in the chest, sore throat, headache and delayed pulmonary edema can
result. Inhalation of concentrated vapors may be fatal.
Ingestion:

Corrosive. Can cause severe burns of the mouth, throat and stomach. Causes
abdominal pain, diarrhea, fever, vomiting, stupor and shock. Probable lethal
dose is 2 to 4 gm of free iodine.
Skin Contact:
Corrosive.
Liquid contact may cause blistering burns, irritation, and pain. Vapors may be
severely irritating to the skin.
Eye Contact:
Corrosive! Vapors
are severely irritating and may cause damage to the eyes. Contact may cause
severe burns and permanent eye damage.
Chronic Exposure:

Chronic exposure to iodine may cause insomnia, conjunctivitis,
inflammation of the nasal mucous, bronchitis, tremor, rapid heart beat,
diarrhea and weight loss. Allergic sensitization may occur.
Aggravation
of Pre-existing Conditions:
Persons with pre-existing skin disorders,
eye problems, impaired respiratory function, or disease of the thyroid, lungs,
or kidney may be more susceptible to the effects of the substance.

4. First Aid Measures

Inhalation:
Remove to fresh air. If not breathing, give
artificial respiration. If breathing is difficult, give oxygen. Get medical
attention immediately. Observe for the development of pulmonary edema.

Ingestion:
Induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person. Get medical
attention immediately.
Skin Contact:
Wipe off excess material
from skin then immediately flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Get medical attention
immediately. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Iodine stains can be removed by immediately washing skin with 5% sodium
thiosulfate solution.
Eye Contact:
Immediately flush eyes with
plenty of water for at least 15 minutes, lifting lower and upper eyelids
occasionally. Get medical attention immediately.

5. Fire Fighting Measures

Fire:
Not combustible, but substance is a strong
oxidizer and its heat of reaction with reducing agents or combustibles may
cause ignition.
Explosion:
Contact with oxidizable substances
and incompatibles may cause extremely violent combustion.
Fire
Extinguishing Media:
Use any means suitable for extinguishing
surrounding fire. Water spray may be used to keep fire exposed containers
cool.
Special Information:
In the event of a fire, wear full
protective clothing and NIOSH-approved self-contained breathing apparatus with
full facepiece operated in the pressure demand or other positive pressure
mode.

6. Accidental Release Measures

Notify safety personnel of iodine spill or leaks. Ventilate area
of leak or spill. Wear protective equipment as specified in Sect. 8. Isolate
hazard area. Keep unnecessary and unprotected personnel from entering. Collect
and containerize as much solid iodine as possible. Cover the spill area with
an excess of reducing agent (sodium thiosulfate, bisulfate, or ferrous salts
in 3M sulfuric acid) and then neutralize with soda ash. Collect slurry into
approved containers.

7. Handling and Storage

Keep in a tightly closed container. Store in a cool, dry,
ventilated area away from sources of heat or ignition. Protect against
physical damage. Store separately from reactive or combustible materials, and
out of direct sunlight. Containers of this material may be hazardous when
empty since they retain product residues (dust, solids); observe all warnings
and precautions listed for the product.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits:
-OSHA Permissible Exposure
Limit (PEL):
0.1 ppm Ceiling
-ACGIH Threshold Limit Value (TLV):
0.1
ppm (STEL) ceiling
Ventilation System:
A system of local and/or
general exhaust is recommended to keep employee exposures below the Airborne
Exposure Limits. Local exhaust ventilation is generally preferred because it
can control the emissions of the contaminant at its source, preventing
dispersion of it into the general work area. Please refer to the ACGIH
document, Industrial Ventilation, A Manual of Recommended Practices,
most recent edition, for details.
Personal Respirators (NIOSH
Approved):
If the exposure limit is exceeded and engineering controls
are not feasible, wear a supplied air, full-facepiece respirator, airlined
hood, or full-facepiece self-contained breathing apparatus. Breathing air
quality must meet the requirements of the OSHA respiratory protection standard
(29CFR1910.134). This substance has unknown warning properties.
Skin
Protection:
Wear impervious protective clothing, including boots,
gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.

Eye Protection:
Use chemical safety goggles and/or a full face
shield where splashing is possible. Maintain eye wash fountain and
quick-drench facilities in work area.

9. Physical and Chemical Properties

Appearance:
Bluish-black crystals; metallic luster

Odor:
Pungent odor.
Solubility:
Slight water
solubility (0.03 g/100 g water @ 20C).
Specific Gravity:
4.98

pH:
5.4 (saturated solution)
% Volatiles by volume @ 21C
(70F):
< 1
Boiling Point:
184C (363F) (sublimes)

Melting Point:
114C (237F)
Vapor Density (Air=1):

8.8
Vapor Pressure (mm Hg):
0.3 @ 20C (68F)

Evaporation Rate (BuAc=1):
No information found.

10. Stability and Reactivity

Stability:
Stable under ordinary conditions of use and
storage.
Hazardous Decomposition Products:
Toxic gases and
vapors may be released if involved in a fire.
Hazardous
Polymerization:
Will not occur.
Incompatibilities:

Incompatible with ammonia, powdered metals, alkali metals, or strong
reducing agents. Reaction can be violent or explosive with acetaldehyde and
acetylene. Reacts with ammonium hydroxide to form shock-sensitive iodides on
drying.
Conditions to Avoid:
Heat, sunlight, and poor
ventilation.

11. Toxicological Information

Oral rat LD50: 14 gm/kg; Human LDLo: 28 mg/kg; Investigated as
a reproductive effector.

Results from Corrositex® Testing: > 60
minutes, non-corrosive.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Iodine (7553-56-2) No No None

12. Ecological Information

Environmental Fate:
No information found.

Environmental Toxicity:
No information found.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be
managed in an appropriate and approved waste facility. Although not a listed
RCRA hazardous waste, this material may exhibit one or more characteristics of
a hazardous waste and require appropriate analysis to determine specific
disposal requirements. Processing, use or contamination of this product may
change the waste management options. State and local disposal regulations may
differ from federal disposal regulations. Dispose of container and unused
contents in accordance with federal, state and local requirements.

14. Transport Information

Not regulated.

15. Regulatory Information

--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Iodine (7553-56-2) Yes Yes No Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Iodine (7553-56-2) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Iodine (7553-56-2) No No No No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Iodine (7553-56-2) No No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: Yes
SARA 311/312: Acute: Yes Chronic: Yes Fire: Yes Pressure: No
Reactivity: No (Pure / Solid)

Australian Hazchem Code: 2X
Poison
Schedule: S6
WHMIS:
This MSDS has been prepared according
to the hazard criteria of the Controlled Products Regulations (CPR) and the
MSDS contains all of the information required by the CPR.

16. Other Information

NFPA Ratings: Health: 3 Flammability: 0
Reactivity: 1 Other: Oxidizer
Label Hazard Warning:

POISON! DANGER! CORROSIVE. CAUSES SEVERE IRRITATION OR BURNS TO EVERY AREA
OF CONTACT. MAY BE FATAL IF SWALLOWED OR INHALED. VAPORS CAUSE SEVERE
IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT. STRONG OXIDIZER. CONTACT WITH
OTHER MATERIAL MAY CAUSE FIRE. AFFECTS THE CARDIOVASCULAR AND CENTRAL NERVOUS
SYSTEMS. MAY CAUSE ALLERGIC SKIN OR RESPIRATORY REACTION.
Label
Precautions:
Do not breathe vapor or mist.
Store in a tightly
closed container.
Do not get in eyes, on skin, or on clothing.
Use only
with adequate ventilation.
Wash thoroughly after handling.
Do not store
near combustible materials.
Keep from contact with clothing and other
combustible materials.
Remove and wash contaminated clothing promptly.

Label First Aid:
If swallowed, induce vomiting immediately as
directed by medical personnel. Never give anything by mouth to an unconscious
person. If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. In case of contact, wipe
off excess material from skin then immediately flush eyes or skin with plenty
of water for at least 15 minutes while removing contaminated clothing and
shoes. Wash clothing before reuse. In all cases get medical attention
immediately.
Product Use:
Laboratory Reagent.
Revision
Information:
MSDS Section(s) changed since last revision of document
include: 15.
Disclaimer:

************************************************************************************************

Mallinckrodt Baker, Inc. provides the information contained herein in
good faith but makes no representation as to its comprehensiveness or
accuracy. This document is intended only as a guide to the appropriate
precautionary handling of the material by a properly trained person using this
product. Individuals receiving the information must exercise their independent
judgment in determining its appropriateness for a particular purpose.
MALLINCKRODT BAKER, INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE
INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS.
ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES
RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.

************************************************************************************************

Prepared by: Environmental Health & Safety
Phone Number:
(314) 654-1600 (U.S.A.)