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LC3647 Mercury(II) oxide

red, GR for analysis


Order number Packaging Quantity Price €
AC30647 Plastic bottle 50 g 26.55
AC30647 Plastic bottle 250 g 99.00


Product information
Hill Formula HgO
HS Code 2852 00 00
EC number 244-654-7
Molar mass 216.58 g/mol
EC index number 080-002-00-6
CAS number 21908-53-2


Chemical and physical data
Solubility 0.052 g/l (25 °C)
Melting point >400 °C (decomposition)
Molar mass 216.58 g/mol
Density 11.1 g/cm3 (20 °C)
Bulk density 3000 kg/m3
pH value 6 – 7 (50 g/l, H2O, 20 °C) (slurry)
Vapor pressure 0.12 Pa (20 °C)



Safety information
R Phrase R 26/27/28-33-50/53
Very toxic by inhalation, in contact with skin and if swallowed.Danger of cumulative effects.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase S 13-28-45-60-61
Keep away from food, drink and animal feedingstuffs.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).This material and its container must be disposed of as hazardous waste.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categories of danger very toxic, dangerous for the environment
Hazard Symbol Very toxic
Dangerous for the environment
RTECS OW8750000
Storage class 6.1B Non combustible substances, toxic
WGK WGK 3 highly water endangering
Disposal 20
Mercury residues and salts. Elemental mercury must be taken up with Chemizorb® Hg (Cat. No 112576): container G.


Transport information
Declaration (transport by sea) IMDG-Code UN 1641 MERCURY OXIDE, 6.1, II, Marine Pollutant: P, Segregation Group: 7 (Heavy metals and their salts (including their organometallic compounds)), 11 (Mercury and mercury compounds)
Declaration (transport by air) IATA-DGR UN 1641 MERCURY OXIDE, 6.1, II


Toxicological data
LD 50 oral LD50 rat 18 mg/kg
LD 50 dermal LD50 rat 315 mg/kg


Assay (complexometric) ≥ 99.0 %
Substances insoluble in dilute hydrochloric acid ≤ 0.03 %
Chloride (Cl) ≤ 0.025 %
Sulphate (SO4) ≤ 0.005 %
Total nitrogen (N) ≤ 0.005 %
Cd (Cadmium) ≤ 0.0001 %
Cu (Copper) ≤ 0.0005 %
Fe (Iron) ≤ 0.01 %
Pb (Lead) ≤ 0.0005 %
Zn (Zinc) ≤ 0.0005 %
Substances not reducing by formic acid (Residue on ignition, as sulphate) ≤ 0.025 %