MERCURIC OXIDE, RED

MERCURIC OXIDE, RED Property

mp : 500 °C (dec.)(lit.) density : 11,14 g/cm3 storage temp. : Poison room Merck : 14,5882 Stability:: Stable. Sensitive to light. Incompatible with strong oxidizing agents, strong reducing agents, combustible materials, organic materials, phenols. CAS DataBase Reference: 21908-53-2(CAS DataBase Reference) NIST Chemistry Reference: Mercury(ii) oxide(21908-53-2) EPA Substance Registry System: Mercury oxide (HgO)(21908-53-2)

Safety

Hazard Codes : T+,N Risk Statements : 26/27/28-33-50/53 Safety Statements : 13-28-45-60-61-28A RIDADR : UN 1641 6.1/PG 2 WGK Germany : 3 RTECS : OW8750000 F : 8 HazardClass : 6.1 PackingGroup : II Hazardous Substances Data: 21908-53-2(Hazardous Substances Data)

MERCURIC OXIDE, RED Chemical Properties,Usage,Production

Chemical Properties bright red, orange or yellow powder General Description Red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. Used as a chemical intermediate for mercury salts, organic mercury compounds, and chlorine monoxide; antiseptic in pharmaceuticals; component of dry cell batteries; pigment and glass modifier; fungicide; preservative in cosmetics; analytical reagent; formerly used in antifouling paints. Reactivity Profile MERCURIC OXIDE is light sensitive. When hydrazine hydrate is dropped on mercuric oxide, an explosion occurs [Mellor 8:318. 1946-47]. Hypophosphorous acid reduces mercuric oxide explosively to the metal [Mellor 4:778. 1946-47]. When heated to decomposition (932 F) MERCURIC OXIDE, RED decomposes into mercury and oxygen. Fumes from fire may contain poisonous mercury vapor; oxygen may increase intensity of fire. Explosion of mercuric oxide may occur with friction or application of heat. Avoid reducing agents. Avoid light; may decompose into mercury and oxygen. Health Hazard MERCURIC OXIDE, RED is highly toxic by ingestion, inhalation, or skin absorption. Very short exposure to small quantities may cause death or permanent injury. Following ingestion, mercuric oxide is readily converted to mercuric chloride, the most dangerous mercury compound. Mercuric oxide dust has a corrosive effect on eyes, skin, and respiratory tract. People with a history of allergies or known sensitization to mercury, chronic respiratory disease, nervous system disorders, or kidney disorders are at increased risk from exposure. Fire Hazard When heated to decomposition (932F) MERCURIC OXIDE, RED decomposes into mercury and oxygen. Fumes from fire may contain poisonous mercury vapor; oxygen may increase intensity of fire. Explosion of mercuric oxide may occur with friction or application of heat. Avoid reducing agents. Avoid light; may decompose into mercury and oxygen. Hazardous polymerization may not occur.

MERCURIC OXIDE, RED Preparation Products And Raw materials

Raw materials Mercury chloride Sodium hydroxide

Preparation Products DIPHENYLKETENE Rimantadine hydrochloride Bis(pyridine)iodonium tetrafluoroborate Aluminium nitrate nonahydrate 2-Iodothiophene Diphenyldiazomethane 2-Diazopropane MERCURIC ACETATE PHENYLMERCURIC ACETATE MERCURY(II) SULFATE

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