| Identification | More | 【Name】
ARSENIC PENTOXIDE | 【CAS】
1303-28-2 | 【Synonyms】
ARSENIC AA STANDARD
ARSENIC AA STANDARD CONCENTRATE
Arsenic anhydride
ARSENIC OXIDE
ARSENIC PENTOXIDE
ARSENIC (V) OXIDE
ARSENIC (V) STANDARD
anhydridearsenique
anhydridearsenique(french)
arsenicacid,anhydride
Arsenicacidanhydride
arsenicoxide(as2o5)
Arsenicpentaoxide
arsenicpentoxide100/
arsenicpentoxide100/105000
caswellno057
diarsenicpentoxide
epapesticidechemicalcode006802
rcrawastenumberp011
Arsenic(V) oxide,( 99.9+%-As) | 【EINECS(EC#)】
215-116-9 | 【Molecular Formula】
As2O5 | 【MDL Number】
MFCD00003434 | 【Molecular Weight】
229.84 | 【MOL File】
1303-28-2.mol |
| Safety Data | Back Directory | 【Hazard Codes 】
T,N | 【Risk Statements 】
R23/25:Toxic by inhalation and if swallowed .
R45:May cause cancer.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | 【Safety Statements 】
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S53:Avoid exposure - obtain special instruction before use .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste . | 【RIDADR 】
1559 | 【RTECS 】
CG2275000 | 【HazardClass 】
6.1 | 【PackingGroup 】
II |
| Hazard Information | Back Directory | 【General Description】
A white crystalline solid. Noncombustible. Corrosive to metals in the presence of moisture. Toxic by ingestion. | 【Reactivity Profile】
ARSENIC PENTOXIDE(1303-28-2) is an oxidizing acid. Oxidizing acids are generally soluble in water with the release of hydrogen ions. The resulting solutions have pH's of less than 7.0. Materials in this group react with chemical bases (for example: amines and inorganic hydroxides) to form salts. These neutralization reactions occur as the base accepts hydrogen ions that the acid donates. Neutralizations can generate dangerously large amounts of heat in small spaces. The dissolution of acids in water or the dilution of their concentrated solutions with water may generate significant heat. The addition of water acids often generates sufficient heat in the small region of mixing to boil some of the water explosively. The resulting "bumping" spatters acid widely. These materials have significant ability as oxidizing agents. but that ability varies (for example, from high for nitric acid to low for sulfuric acid and most sulfonic acids). They can react with active metals, including iron and aluminum, and also many less active metals, to dissolve the metal and liberate hydrogen and/or toxic gases. Like other acids, materials in this group can initiate polymerization in certain classes of organic compounds. Their reactions with cyanide salts and compounds release gaseous hydrogen cyanide. Flammable and/or toxic gases are also often generated by their reactions with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and weak or strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and even carbonates: the carbon dioxide gas from the last is nontoxic but the heat and spattering from the reaction can be troublesome. Acids often catalyze (increase the rate of) chemical reactions. | 【Air & Water Reactions】
Dissolves in water to give solutions of arsenic acid. | 【Health Hazard】
This material is extremely toxic; the probable oral lethal dose for humans is 5-50 mg/kg, or between 7 drops and 1 teaspoonful for a 150-lb. person. It is irritating to eyes, nose, and throat. Chronic exposure may cause nerve damage to the extremities, alter cellular composition of the blood, and cause structural changes in blood components. There is sufficient evidence that inorganic arsenic compounds are skin and lung carcinogens in humans. | 【Fire Hazard】
Fire may produce irritating or poisonous gases. Reacts with metal and may give off toxic arsine gas. Hazardous polymerization may not occur. |
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