7784-34-1

A colorless to yellow oily fuming liquid. ARSENIC TRICHLORIDE(7784-34-1) is irritating to the skin, eyes, and mucous membranes. Very toxic by inhalation and ingestion.

When ARSENIC CHLORIDE is heated to decomposition or on contact with mineral acids, ARSENIC TRICHLORIDE emits highly toxic fumes of hydrogen chloride and of metallic arsenic. Explodes with Na, K, and Al on impact [Sax, 9th ed., 1996, p. 275]. The interaction of hexafluoroisopropylideneaminolithium with a range of chlorinated and /or fluorinated derivatives of arsenic, boron, phosphorus, silicon, and sulfur yielded a violently exothermic reaction.

Fumes in air. Reacts with water to form hydrochloric acid and As(OH)3.

Strong irritant to eyes and skin.

ARSENIC TRICHLORIDE can cause death. In acute exposures, it is extremely toxic and caustic, owing not only to the poisonous nature of arsenic, but also to the release of hydrochloric acid in the presence of water. Exposure to the skin causes local irritation and blisters. Inhalation or ingestion causes hemorrhagic gastroenteritis resulting in loss of fluids and electrolytes, collapse, shock and death. Chronic poisoning can lead to peripheral nerve damage, skin conditions, liver damage and it has been implicated in the induction of skin and lung cancer. The fatal human dose is 70-180 mg depending on the weight of the victim.

Arsenic chloride is used in the ceramics industry; in the synthesis of chlorine-containing arsenicals; as a chemical intermediate for arsenic insecticides, pharmaceuticals; and has been used in chemical warfare agents.

When in contact with active metals such as arsenic, iron, aluminum, zinc, or when heated to decomposition, ARSENIC TRICHLORIDE emits highly toxic fumes of arsenic. Upon contact with water hydrogen chloride is produced. Water causes ARSENIC TRICHLORIDE to decompose to yield arsenic acid and hydrochloric acid. Avoid active metals such as arsenic, iron, aluminum, zinc, decomposed by water to form arsenic hydroxide and hydrogen chloride. Avoid air, ultraviolet light. Hazardous polymerization may not occur.

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention.

UN1560 Arsenic trichloride, Hazard class 6.1; Labels: 6.1-Poison Inhalation Hazard, Inhalation Hazard Zone B.

Contact with sodium, potassium, or powdered aluminum may cause a violent reaction. It is decomposed in water, forming arsenic hydroxide and hydrogen chloride. Exposure to light forms toxic gas. Violent reaction with anhydrous ammonia, strong acids; strong oxidizers and halogens. Incompatible with alkali metals; active metals, such as arsenic, iron, aluminum, zinc. Corrodes metals in the presence of moisture and forms flammable and explosive hydrogen gas.

Arsenous trichloride is a noncombustible, colorless or pale yellow oily, fuming liquid. The odor is describedas pungent and acrid. Molecular weight= 181.27; Boilingpoint=130.2℃; Freezing/Melting point= -16℃; Specificgravity= 2.156 at 25℃; Latent heat of vaporization=49.06 cal/g; Heat of solution=(estimate) 2 0.42 3 105 J/kg;Vapor pressure= 8.4 mmHg. Decomposes in water, forminghydrogen chloride.

Arsenous trichloride is a noncombustible, colorless or pale yellow oily, fuming liquid. The odor is described as pungent and acrid.

colourless oily liquid

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Dissolve in a minimum of concentrated hydrochloric acid. Dilute with water until white precipitate forms. Add HCl to dissolve. Saturate with H2S; filter and wash precipitate and return to supplier. Alternatively, precipitate with heavy metals, such as lime or ferric hydroxide in lieu of H2S.If needed, seek professional environmental engineering assistance from the United States Environmental Protection Agency Environmental Response Team at (908) 548-8730 (24-hour response line). In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

Colorless oily liquid; fumes in air; density 2.163 g/ml at 20°C; refractive index 1.621 at 14°C; melts at 0.16°C; boils at 130.2°C; vapor pressure 9.75 torr at 25°C; decomposes in water; soluble in alcohol, ether, HCl and HBr.

Arsenic trichloride (AsCl3), also known as arsenic chloride, is used in the pharmaceutical industry and to make insecticides and ceramics.

Arsenic Trichloride is an highly toxic inorganic compounds and is an intermediate in the manufacture of organoarsenic compounds.

In the ceramic industry; in syntheses of chlorine-contg arsenicals, e.g., chloro derivatives of arsine.

A poisonous oily liquid. It fumesin moist air due to hydrolysis with water
vapor:AsCl₃ + 3H₂O = As₂O₃ + 6HCl
Arsenic(III) chloride is covalent and exhibits nonmetallic properties.

ChEBI: A arsenic molecular entity that consists of a single arsenic atom bearing three chloro substituents.

The compound is generally made from arsenic trioxide by (i) passing chlorine over it or (ii) treating the trioxide with sulfur monochloride, S2Cl2. Alternatively it is prepared from arsenic trioxide by distillation with either concentrated hydrochloric acid or a mixture of sulfuric acid and a metal chloride. Arsenic trichloride may also be prepared by combination of arsenic and chlorine.

Color Code—Blue: Health Hazard/Poison: Store ina secure poison location. Prior to working with this chemicalyou should be trained on its proper handling and storage.Arsenous trichloride, AsCl3, should be stored in tightlyclosed containers in a cool, well-ventilated area away fromheat, water, and any possible contact with active metals orother incompatible materials. A regulated, marked areashould be established where this chemical is handled, used,or stored in compliance with OSHA Standard 1910.1045.

Reflux the trichloride with arsenic for 4hours, then fractionally distil it. The middle fraction is stored with sodium wire for two days, then again distilled [Lewis & Sowerby J Chem Soc 336 1957]. It fumes in moist air forming the solid hydroxy-chloride [AsCl(OH)2] and is readily hydrolysed by H2O to form arsenious acid. POISONOUS. [Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 596 1963.]