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LC4989 Selenium black 99+

 

Order number	Packaging	Quantity	Price €
AC31989	Plastic bottle	50 g	49.95
AC31989	Plastic bottle	250 g	247.50
AC31989	Plastic bottle	1 kg	944.1

 

Product information
Hill Formula	Se
HS Code	2804 90 00
EC number	231-957-4
Molar mass	78.96 g/mol
EC index number	034-001-00-2
CAS number	7782-49-2

 

Chemical and physical data
Solubility	(20 °C) slightly soluble
Melting point	217 °C
Molar mass	78.96 g/mol
Density	4.28 g/cm3 (20 °C)
Bulk density	1270 kg/m3
Boiling point	685 °C (1013 hPa)
Vapor pressure	0.001 hPa (20 °C)

 

 

Safety information
R Phrase	R 23/25-33-53 Toxic by inhalation and if swallowed.Danger of cumulative effects.May cause long-term adverse effects in the aquatic environment.
S Phrase	S 20/21-28-45-61 When using do not eat, drink or smoke.After contact with skin, wash immediately with plenty of water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categories of danger	toxic, dangerous for the environment
Hazard Symbol	Toxic
Storage class	Combustible substances, toxic
WGK	WGK 2 water endangering
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.

 

Toxicological data
LD 50 oral	LD50 rat 6700 mg/kg

 

Specifications
Identity	passes test
Assay (gravimetrically)	≥ 99.0 %
Cu (Copper)	≤ 0.005 %
Fe (Iron)	≤ 0.05 %
Pb (Lead)	≤ 0.05 %
Residue on ignition	≤ 0.5 %
Particle size (> 150 µm)	≤ 5 %