**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 21351-79-1 |Cesium hydroxide | | 244-344-1 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 22 35
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful if swallowed. Causes severe burns.
Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye
burns.
Skin:
May cause severe irritation and possible burns.
Ingestion:
Not available.
Inhalation:
May cause severe irritation of the respiratory tract with sore
throat, coughing, shortness of breath and delayed lung edema. Causes
chemical burns to the respiratory tract.
Chronic:
Not available.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids.
Skin:
Flush skin with plenty of water for at least 15 minutes while
removing contaminated clothing and shoes.
Ingestion:
Do NOT induce vomiting. If conscious and alert, rinse mouth and
drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear.
Extinguishing Media:
Not available.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Not available.
Storage:
Not available.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne
concentrations below the permissible exposure limits.
Exposure Limits
CAS# 21351-79-1:
United Kingdom, WEL - TWA: 2 mg/m3 TWA
United Kingdom, WEL - STEL: 6 mg/m3 STEL
Belgium - TWA: 2 mg/m3 VLE
France - VME: 2 mg/m3 VME
Germany: 2 mg/m3 TWA (inhalable fraction)
Malaysia: 2 mg/m3 TWA
Netherlands: 2 mg/m3 MAC
Russia: 0.3 mg/m3 TWA
Spain: 2 mg/m3 VLA-ED
Personal Protective Equipment
Eyes:
Wear safety glasses and chemical goggles if splashing
is possible.
Skin:
Wear appropriate protective gloves and clothing to
prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize
contact with skin.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149
approved full-facepiece airline respirator in the
positive pressure mode with emergency escape
provisions.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Clear liquid
Color: colorless
Odor: none reported
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 0 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 3.6800g/cm3
Molecular Formula: HCsO
Molecular Weight: 149.91
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Not available.
Incompatibilities with Other Materials:
Strong acids.
Hazardous Decomposition Products:
Not available.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 21351-79-1: FK9800000
LD50/LC50:
CAS# 21351-79-1: Draize test, rabbit, skin: 5 mg/24H Mild; Oral,
mouse: LD50 = 800 mg/kg; Oral, mouse: LD50 = 759 mg/kg; Oral, rat:
LD50 = 570 mg/kg; Oral, rat: LD50 = 570 mg/kg.
Carcinogenicity:
Cesium hydroxide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 22 Harmful if swallowed.
R 35 Causes severe burns.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 21351-79-1: 1
Canada
CAS# 21351-79-1 is listed on Canada's DSL List.
CAS# 21351-79-1 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 21351-79-1 is listed on the TSCA inventory.
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
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such information, and we assume no liability resulting from its use. Users
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