Selenium Dioxide
Synonyms: Selenium(IV) oxide, Selenous anhydride
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name
Selenium Dioxide
Product Form
Substance
Catalogue No.
AL3967
CAS Number
7446-08-4
EC Number
231-194-7
EC Index Number
SelO2
Grade
98% (sublimed)
HSN Code
28112990
Molecular Formula
SeO2
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name
Selenium Dioxide
Catalogue No.
AL3967
Product form
Substance
CAS Number
7446-08-4
EC Number
231-194-7
Grade
98% (sublimed)
EC Index Number
SelO2
Chemical Formula
SeO2
HSN Code
28112990
Synonyms
Selenium(IV) oxide, Selenous anhydride
Chemical Structure
-
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture
Oxidizing agent in organic synthesis
Uses advised against
Not specified
1.3 Details of the supplier of the safety data sheet
Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Acute Tox. 3; STOT RE 2; Aquatic Acute 1; Aquatic Chronic 1
Classification source
ECHA C&L Inventory via PubChem CID 24007 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms
Acute Toxic, Health Hazard, Environmental Hazard
Signal word
Danger
Hazard statements
H301: Toxic if swallowed; H331: Toxic if inhaled; H373: May causes damage to organs through prolonged or repeated exposure; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
2.3 Other hazards
Other hazards
Highly toxic; may cause respiratory irritation and skin burns.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name
Selenium Dioxide
CAS No.
7446-08-4
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation
Remove victim to fresh air; give oxygen if needed.
First-aid measures after skin contact
Flush with water.
First-aid measures after eye contact
Flush immediately and thoroughly with water.
First-aid measures after ingestion
Induce vomiting; follow with gastric lavage and saline cathartics.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use
Symptoms of exposure may include coughing, shortness of breath, skin irritation, and eye damage.
4.3 Indication of any immediate medical attention and special treatment needed
General information
Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures
Non-flammable, but may emit toxic fumes in a fire.
5.3 Advice for firefighters
Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures
Evacuate area and ventilate. Wear appropriate protective equipment. Contain and collect spillage.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up
Evacuate danger area! Consult an expert! Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: complete protective clothing including self-contained breathing apparatus.
6.4 Reference to other sections
Reference
Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling
Handle under a fume hood with appropriate PPE, including gloves and goggles. Avoid inhalation and skin contact.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions
Separated from food and feedstuffs. Dry.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use a NIOSH-approved respirator if exposure limits are exceeded.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state
Solid
Colour
White to pale gray
Odour
Vapor has a pungent sour smell
Odour threshold
Not specified
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
340 °C under pressure
Freezing point
Not applicable
Boiling point
315 °C at 760 mmHg (sublimes)
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not specified
Flammability (solid, gas)
Non-flammable
Vapour pressure
12.5 mm Hg at 70 °C; 20.2 mm Hg at 94 °C; 39.0 mm Hg at 181 °C; 760 mm Hg at 315 °C; 848 mm Hg at 320 °C
Relative vapour density at 20°C
Not specified
Density
3.954 at 15 °C/15 °C
Solubility
Soluble in concentrated sulfuric acid
Log Pow
Not specified
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not explosive
Oxidising properties
Oxidizing agent
Explosive limits
Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity
Stable under normal conditions, but reacts with strong acids and bases.
10.2 Chemical stability
Chemical stability
Stable to light and heat.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions
Decomposes on heating. This produces toxic fumes. The solution in water is a medium strong acid (selenic acid).
10.4 Conditions to avoid
Conditions to avoid
Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials
Strong acids, strong bases, and reducing agents.
10.6 Hazardous decomposition products
Hazardous decomposition products
When heated to decomposition emits toxic fumes of selenium.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity
LD50 Rat oral 48 mgkgday; LD50 Mouse (male) oral 16 mgkgday; LD50 Rabbit subcutaneous 4 mg/kg
Skin corrosion/irritation
Not classified (based on available data)
Serious eye damage/irritation
Not classified (based on available data)
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
Not classified (based on available data)
Specific target organ toxicity (repeated exposure)
H373: May causes damage to organs through prolonged or repeated exposure
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information
Not specified
12.2 Persistence - degradability
Persistence - degradability
Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential
Not specified
12.4 Mobility in soil
Mobility in soil
Not specified
12.6 Other adverse effects
Environmental precautions
Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR)
UN 3283
UN-No. (IMDG)
UN 3283
UN-No. (IATA)
UN 3283
UN-No. (ADN)
UN 3283
UN-No. (RID)
UN 3283
14.2 UN proper shipping name
Proper Shipping Name (ADR)
Selenium Dioxide
Proper Shipping Name (IMDG)
Selenium Dioxide
Proper Shipping Name (IATA)
Selenium Dioxide
Proper Shipping Name (ADN)
Selenium Dioxide
Proper Shipping Name (RID)
Selenium Dioxide
14.3 Transport hazard class(es)
Transport hazard class(es)
6.1
14.4 Packing group
Packing group (ADR)
III
Packing group (IMDG)
III
Packing group (IATA)
III
Packing group (ADN)
III
Packing group (RID)
III
14.5 Environmental hazards
Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations
Not specified
SECTION 16: Other Information
Disclaimer
The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.