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Product: Alfa-Tox
Published in Charles R. Foden, Jack L. Weddell, First Responder’s Guide to Agricultural Chemical Accidents, 2018
Charles R. Foden, Jack L. Weddell
HEALTH HAZARD INFORMATION Arsenic pentaoxide if inhaled may cause acute pulmonary edema, with restlessness, dyspnea and coughing attacks.Chronic symptoms may include: numbness, burning and tingling or itching followed by fasciculation or gross tremors with muscular atrophy and paralysis of lower limbs. Contact with the eyes may cause irritation of conjunctiva, edema of eyelids and corneal necrosis. Contact with the skin may cause pigmentation, inflammation, desquamative eczematoid dermatitis and hyperkeratosis. Ingestion of arsenic pentaoxide may cause irritation of the stomach and intestines with nausea, vomiting and diarrhea. In severe cases vomitus and stools are bloody. Patient can go into collapse and shock with weak rapid pulse, cold sweats, coma and death. Chronic digestive disturbances. Liver damage with resulting jaundice. Disturbances of blood, kidneys and nervous system. Late toxicity: exposure can be followed by tumor development. Cancers of the skin, lungs and ethmoids have been attributed to as exposure. Liquid or solid irritant is a minimum hazard. Can cause burning sensation and tenderness in affected areas of the skin.A physician should be contacted if anyone develops any signs or symptoms and suspects that they are caused by exposure to arsenic pentaoxide.
List of Chemical Substances
Published in T.S.S. Dikshith, and Safety, 2016
Arsenic pentoxide is an important commercial compound of arsenic. It is a white, shapeless (amorphous), crystalline, lumpy solid or, hygroscopic powder, and is not combustible. It emits irritating or toxic fumes (or gases) in a fire. Arsenic pentoxide is used as a solid or as a solution in the manufacture of arsenates, weed killer, metal adhesives, insecticides, fungicide wood preservatives, and colored gases, and in printing and dyeing. It can be synthesized either by burning elemental arsenic in oxygen, or by oxidizing arsenic trioxide with oxidizing agents, such as ozone, hydrogen peroxide, and nitric acid. Arsenic pentoxide decomposes to oxygen and As2O3 on heating, and dissolves readily in water to form arsenic acid, H3AsO4. Arsenic pentoxide reacts violently with bromine pentafluoride and reducing agents, and attacks many metals in the presence of water or moisture.
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Published in Maurizio Cumo, Antonio Naviglio, Safety Design Criteria for Industrial Plants, 2019
Claudia Bartolomei, Sergio Paribelli
Toxicity — Carcinogenic determination: human positive (IARC). OSHA Standard Air: TWA 50.0 µg; occupational exposure to inorganic arsenic recommended standard: air CL 2 µg/m3/ISM. Arsenic pentoxide is highly toxic via oral and intravenous routes. It is a poison. Acute allergic reactions to arsenic compounds used in medical therapy have been fairly common.
Removal of arsenic from contaminated water using radiation-induced grafted chitosan: a critical review
Published in Chemistry and Ecology, 2022
In soil, As occurs both as inorganic [As(III) and As(V)] and as organic forms. Trivalent As can exist as arsenous oxide (As2O3), arsenious acid (HAsO2), arsenite (H2AsO3-, HAsO23-, AsO33-) ions, arsenic trichloride (AsCl3), arsenic sulfide (AsS3) and arsine (AsH3). Pentavalent As commonly occurs as arsenic pentoxide (As2O5), ortho arsenic acid (H3AsO4), meta arsenic acid (HAsO3) and arsenate (H2AsO4-, HAsO24-, AsO34-) ions. The presence of different forms of organic As, such as monomethylarsonic acid [MMA, CH3AsO(OH)2], dimethylarsenic acid [DMA, (CH3)2AsO(OH)], trimethylarsine oxide [(CH3)3AsO], methylarsine (CH3AsH2), dimethylarsine [(CH3)2AsH] and trimethylarsine [TMA, (CH3)3As], has also been observed in contaminated soil and water [70]. The most common forms of As in the environment are the inorganic oxyions of As(III) and As(V). Arsenite [As(III)] is more toxic and relatively mobile in contaminated soils, whereas arsenate [As(V)] is relatively less toxic. Both As(III) and As(V) compounds are highly soluble in water and may change valency states depending on the pH and redox conditions. In contaminated soils, generally As(V) predominates over As(III), whereas in waters, the relative proportion of these two species varies depending on several factors, including As sources, redox potential, pH and microbial activity.