**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7446-08-4 |Selenium dioxide | 99 | 231-194-7 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T N
Risk Phrases: 23/25 33 50/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Toxic by inhalation and if swallowed. Danger of cumulative effects.
Very toxic to aquatic organisms, may cause long-term adverse effects
in the aquatic environment.Hygroscopic (absorbs moisture from the
air).
Potential Health Effects
Eye:
May result in corneal injury. May cause pink, puffy eyelids due to
an allergic reaction. Vapors may cause eye injury.
Skin:
Causes skin burns. May cause skin sensitization, an allergic
reaction, which becomes evident upon re-exposure to this material.
Causes redness and pain. May be harmful if absorbed through the
skin.
Ingestion:
Harmful if swallowed.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. Irritation
may lead to chemical pneumonitis and pulmonary edema.
Chronic:
Adverse reproductive effects have been reported in animals. Symptoms
demonstrated by humans suffering from chronic selenium intoxication,
selenosis, include depression, languor, nervousness, dermatitis,
gastrointestinal disturbances, giddiness, garlic odor of the breath
and sweat, moderate emotional instability, excess dental caries, and
in extreme cases, loss of fingernails and partial alopecia (hair
loss).
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
Get medical aid immediately. In case of contact, immediately wipe
away excess material with a dry cloth while removing contaminated
clothing and shoes. Under safety shower, wash affected areas
thoroughly with large amounts of water, and soap if available, for at
least 15 minutes. Discard or decontaminate clothing and shoes.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious
person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
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. Reacts with water to form corrosive acids. Approach
fire from upwind to avoid hazardous vapors and toxic decomposition
products.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to
extinguish surrounding fire.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Minimize dust
generation and accumulation. Do not get in eyes, on skin, or on
clothing. Keep container tightly closed. Do not ingest or inhale.
Inform laundry personnel of contaminant's hazards.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep
containers tightly closed. Store protected from moisture.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Exposure Limits
CAS# 7446-08-4:
United Kingdom, WEL - TWA: (listed as selenium compounds): 0.1 mg
TWA (except hydrogen selenide, as Se)
United Kingdom, WEL - STEL: (listed as selenium compounds): 0.3 m
STEL (except hydrogen selenide, as Se)
United States OSHA: 0.2 mg/m3 TWA (as Se) (listed under Selenium
compounds).
Belgium - TWA: (listed as selenium compounds): 0.2 mg/m3 VLE (as
Japan: (listed as selenium compounds): 0.1 mg/m3 OEL (except SeH2
SeF6, as Se)
Malaysia: (listed as selenium compounds): 0.2 mg/m3 TWA (as Se)
Netherlands: (listed as selenium compounds): 0.1 mg/m3 MAC (as Se
Russia: 0.1 mg/m3 TWA
Spain: (listed as selenium compounds): 0.1 mg/m3 VLA-ED (except
hydrogen selenide, as Se)
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Crystalline powder
Color: white to off-white to pink
Odor: pungent sour
pH: acidic in aq soln
Vapor Pressure: 12.5 mm Hg @ 70 deg C
Viscosity: Not available.
Boiling Point: 315 deg C (sublimes)
Freezing/Melting Point: 340 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: 3.954
Molecular Formula: SeO2
Molecular Weight: 110.96
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation, confined spaces, moisture, high humidity.
Incompatibilities with Other Materials:
Strong reducing agents, attacks metals in the presence of moisture.
Hazardous Decomposition Products:
Selenium/selenium oxides, selenious acid.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7446-08-4: VS8575000
LD50/LC50:
CAS# 7446-08-4: Oral, mouse: LD50 = 23300 ug/kg; Oral, rat: LD50 =
68100 ug/kg.
Not available.
Carcinogenicity:
Selenium dioxide -
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
Shipping Name: SELENIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3283
Packing Group: III
IMO
Shipping Name: SELENIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3283
Packing Group: III
RID/ADR
Shipping Name: SELENIUM COMPOUND, N.O.S.
Hazard Class: 6.1
UN Number: 3283
Packing group: III
USA RQ: CAS# 7446-08-4: 10 lb final RQ; 4.54 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T N
Risk Phrases:
R 23/25 Toxic by inhalation and if swallowed.
R 33 Danger of cumulative effects.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 20/21 When using do not eat, drink or smoke.
S 28A After contact with skin, wash immediately with
plenty of water.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7446-08-4: 2
Canada
CAS# 7446-08-4 is listed on Canada's DSL List.
CAS# 7446-08-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7446-08-4 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 9/30/1998 Revision #4 Date: 4/21/2004
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
|
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Triphenylmethyl chloride
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Benzoin methyl ether, 96% (tlc)
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Heptanoic Acid, 98%
| 111-14-8 |
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| 110-54-3 |
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| 123-02-4 |
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| 103-80-0 |
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| 987-65-5 |
|
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| 76-02-8 |
|
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| 534-16-7 |
|
Tetrabutylammonium Hydrogen Sulfate, 98%
| 32503-27-8 |
|
Adipoyl Chloride, 99+% (Titr.)
| 111-50-2 |
|
Benzylamine, 99%
| 100-46-9 |
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1,3-Cyclopentanedione, 97%
| 3859-41-4 |
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Poly(n-vinylcarbazole), secondary standard
| 25067-59-8 |
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| 112-05-0 |
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| 7446-08-4 |
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| 7446-08-4 |
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4'-Nitroacetanilide
| 104-04-1 |
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| 7773-01-5 |
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Pinacolone, 96% (gc)
| 75-97-8 |
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| 16069-36-6 |
|
cis-Dicyclohexano-18-crown-6, cis-anti-cis isomer, 98+%
| 15128-66-2 |
|
1-Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt hydrate, 98%
| 525-05-3 |
|
2-Naphthol, 98%
| 135-19-3 |
|
2-Naphthol (techn)
| 135-19-3 |
|
3-Bromopropionic Acid, 97%
| 590-92-1 |
|
4'-Chloroacetophenone, 97%
| 99-91-2 |
|
Ethyl chloroformate, 99%
| 541-41-3 |
|
6-Chloro-1-Hexanol, 95%
| 2009-83-8 |
|
1,3-Cyclohexadiene, 96%, stabilized with 50 ppm BHT
| 592-57-4 |
|
N-(4-Chlorophenyl)-p-toluenesulfonamide, pract.
| 2903-34-6 |
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| 79-92-5 |
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| 110-26-9 |
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| 535-80-8 |
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| 108-68-9 |
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