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MERCK

MERCK 800653.0050 Selenium Dioxide (Sublimed) For Synthesis CAS No.7446-08-4 (SD.M.800653.0050)

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MERCK 800653.0050 Selenium Dioxide (Sublimed) For Synthesis CAS No.7446-08-4

 

Description
Catalogue Number 800653
Synonyms Selenious anhydride, Selenium(IV) oxide
Product Information
CAS number 7446-08-4
EC index number 034-002-00-8
EC number 231-194-7
Hill Formula O₂Se
Chemical formula SeO₂
Molar Mass 110.96 g/mol
HS Code 2811 29 90
Quality Level MQ200
Physicochemical Information
Density 3.950 g/cm3
Melting Point 340 °C
pH value 2 (10 g/l, H₂O, 20 °C)
Vapor pressure 1 hPa (157 °C)
Solubility 1353 g/l
Toxicological Information
LD 50 oral LD50 Rat 68.1 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H301 + H331: Toxic if swallowed or if inhaled.
H373: May cause damage to organs through prolonged or repeated exposure.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s) P260: Do not breathe dust.
P264: Wash skin thoroughly after handling.
P273: Avoid release to the environment.
P301 + P310: IF SWALLOWED: Immediately call a POISON CENTER/doctor.
P304 + P340 + P311: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor.
P314: Get medical advice/ attention if you feel unwell.
Signal Word Danger
RTECS VS8575000
Storage class 6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK WGK 2 obviously hazardous to water
Disposal 17
Inorganic selenium compounds are toxic and must be handled with caution. Container E. Elemental selenium can be recovered by first oxidizing the salts in aqueous solution with concentrated Nitric acid (Cat.No. 100443). The addition of Sodium hydrogen sulfite solution (Item No. 806356) then causes elemental selenium to precipitate out. Aqueous phase: Container D.
Safety Information
Categories of danger toxic, dangerous for the environment
Storage and Shipping Information
Storage Store below +30°C.
Transport Information
Declaration (railroad and road) ADR, RID UN 3283 , 6.1, III
Declaration (transport by air) IATA-DGR UN 3283 , 6.1, III
Declaration (transport by sea) IMDG-Code UN 3283 , 6.1, III
Specifications
Assay (iodometric) ≥ 98.0 %
Global Trade Item Number
Catalogue Number GTIN
8006530005 04027269276256
8006530050 04022536361413
8006530250 04022536361420
8006531000 04022536361437
Etiketler
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