SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 13/MAR/2005
Date Updated: 16/MAR/2004
Version 1.2
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name CESIUM IODIDE, 99.999%
Product Number 203033
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
CESIUM IODIDE 7789-17-5 232-145-2 None
Formula CsI
Molecular Weight 259.81 AMU
Synonyms Cesium monoiodide * Dicesium diiodide *
Tricesium triiodide
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
May cause sensitization by skin contact.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER EYE CONTACT
Assure adequate flushing of the eyes by separating the eyelids
with fingers.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician immediately.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Noncombustible. Use extinguishing media appropriate to
surrounding fire conditions.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves. Wear disposable coveralls and discard them after
use.
METHODS FOR CLEANING UP
Sweep up, place in a bag and hold for waste disposal. Avoid
raising dust. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Do not get in
eyes, on skin, on clothing. Avoid prolonged or repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Store in a cool dry
place.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse. Discard contaminated shoes.
PERSONAL PROTECTIVE EQUIPMENT
Special Protective Measures: Wear appropriate government approved
respirator, chemical-resistant gloves, safety goggles, other
protective clothing. Faceshield (8-inch minimum).
9 - Physical and Chemical Properties
Appearance Color: White
Form: Fine crystals
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 1,280 掳C
MP/MP Range 626 掳C
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
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Vapor Pressure 1 mmHg
SG/Density 4.51 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility Solubility in Water:soluble
Other Solvents: ETOH, MEOH
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions of Instability: Moisture.
Conditions to Avoid: Moisture.
Materials to Avoid: Strong oxidizing agents.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Hydrogen iodide.
11 - Toxicological Information
RTECS NUMBER: FL0350000
ACUTE TOXICITY
LD50
Oral
Rat
2,386 mg/kg
LD50
Intraperitoneal
Rat
1,400 mg/kg
LD50
Oral
Rat
2386 mg/kg
LD50
Intraperitoneal
Rat
1400 MG/KG
SENSITIZATION
Sensitization: May cause allergic respiratory and skin reactions
SIGNS AND SYMPTOMS OF EXPOSURE
Prolonged exposure to iodides may produce iodism in sensitive
individuals. Symptoms of exposure include: skin rash, running
nose, headache and irritation of the mucous membrane. For severe
cases the skin may show pimples, boils, hives, blisters and
black and blue spots. Iodides are readily diffused across the
placenta. Neonatal deaths from respiratory distress secondary to
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goiter have been reported. Iodides have been known to cause
drug-induced fevers, which are usually of short duration.
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting. To the best of our knowledge, the chemical, physical,
and toxicological properties have not been thoroughly
investigated.
ROUTE OF EXPOSURE
Multiple Routes: Harmful if swallowed, inhaled, or absorbed
through skin. High concentrations are extremely destructive to
tissues of the mucous membranes and upper respiratory tract,
eyes, and skin.
TARGET ORGAN INFORMATION
Thyroid.
CHRONIC EXPOSURE - REPRODUCTIVE HAZARD
Result: Overexposure may cause reproductive disorder(s) based on
tests with laboratory animals.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Dissolve or mix the material with a combustible solvent and burn
in a chemical incinerator equipped with an afterburner and
scrubber. Observe all federal, state, and local environmental
regulations.
14 - Transport Information
RID/ADR
Non-hazardous for road transport.
IMDG
Non-hazardous for sea transport.
IATA
Non-hazardous for air transport.
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: Xi
Irritant.
R-PHRASES: 43
May cause sensitization by skin contact.
S-PHRASES: 24 36/37
Avoid contact with skin. Wear suitable protective clothing and
gloves.
SWITZERLAND
SWISS POISON CLASS: 4
16 - Other Information
WARRANTY
The above information is believed to be correct but does not
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purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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