Arsenic iodide (AsI3)

455.64

455.64

232-068-4

3029988O2T

1557

DTXSID9064843

Orange-red, trigonal rhombohedra from acetone; aq soln is yellow|Red hexagonal crystals

2812909010

0

2.27630

red Powder

4.688 g/cm³ @ Temp: 25 °C

140.9 °C

424 °C

424°C

INDEX OF REFRACTION: APPROX 2.59, APPROX 2.23

soluble in alcohol, ether, Carbon disulfide, water(6 g/100 m).

Protect container against physical damage. Store in well ventilated area away from food or food products and combustible materials. /Inorganic arsenic cmpd/

Non-combustible substance; emits toxic arsenide and iodide vapors when exposed to heat

1.1 (aq 0.1 N soln)

Some tendency to sublime below 100 °C; forms red liq on melting; does not hydrolyze rapidly and may be recovered from water soln unchanged in 5 hr; aq soln form hydrogen iodide (HI) and arsenic trioxide (As203).

Reacts slowly with oxygen from the air, liberating iodine [Merck]. Water soluble. Aqueous solutions are strongly acidic (pH of 0.1N solution about 1.1) and ultimately form HI and As2O3, although an equilibrium AsI3 + 3H2O = H3AsO3 + 3HI has been observed [Merck 1989].

Acyl Halides, Sulfonyl Halides, and Chloroformates

Water-Reactive

ARSENIC IODIDE gives acidic solutions in water. These solutions neutralize bases exothermically. Can react as either an oxidizing agent or reducing agent.

II

6.1

UN 1557 6.1/PG 1

3

23/25-50/53

20/21-28-45-60-61

CG1950000

T,N

Treasury is ventilated, low temperature and dry; stored separately from alkali, acid and food additives

Explosive in case of metallic sodium and potassium

REACTS SLOWLY WITH O2 FROM AIR, LIBERATING IODINE

P261-P273-P301 + P310-P311-P501

H301 + H331-H410

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.|Chemical Treatability of Arsenic; Concentration Process: Chemical Precipitation; Chemical Classification: Metal; Scale of Study: Pilot Scale; Type of Wastewater Used: Domestic Wastewater + Pure Compound; Results of Study: 5ppm @ 4gpm @ pH= 7.0. Iron system-90% reduction; low lime system-80% reduction; high lime system-76% reduction; (3 coagulant systems were used; Iron system used 45 ppm as Fe of Fe2(SO4)3 @ pH= 6.0. Low lime system used 20 ppm Fe of Fe2(SO4)3 and 260 ppm of CaO @ pH= 10.0. High lime system used 600 ppm of CaO @ pH= 11.5. Chemical coagulation was followed by multimedia filtration). /Arsenic cmpd/|Chemical Treatability of Arsenic; Concentration Process: Chemical Precipitation; Chemical Classification: Metal; Scale of Study: Full Scale Continuous Flow; Type of Wastewater Used: Domestic Wastewater; Results of Study: Effluent character (ppb): 2.5, 56% reduction with lime; 3.3, 24% reduction with lime; (lime dose of 350-400 ppm as calcium oxide @ pH= 11.3). /Arsenic cmpd/

Can form a shock sensitive cmpd with sodium or potassium.|... WHEN WATER SOLN OF ARSENICALS ARE IN CONTACT WITH ACTIVE METALS SUCH AS ARSENIC, IRON, ALUMINUM, ZINC, ... HIGHLY TOXIC FUMES OF ARSENIC /INCLUDING ARSINE ARE RELEASED/. /ARSENIC CMPD/|Strong oxidizers, bromide azide [Note: Hydrogen gas can react with inorganic arsenic to form the highly toxic gas arsine.] /Arsenic (inorganic compounds, as As)/

U.S. Environmental Protection Agency's Integrated Risk Information System (IRIS) on Arsenic, inorganic (7440-38-2).[Available from the Substance File List, as of March 15, 2000: http://www.epa.gov/iris/subst/index.html]|IARC. Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man. Geneva: World Health Organization, International Agency for Research on Cancer, 1972-PRESENT. (Multivolume work). Volume 84 (2004). Some Drinking-water Disinfectants and Contaminants, including Arsenic.[Available from, as of July 22, 2009: http://monographs.iarc.fr/ENG/Monographs/vol84/volume84.pdf]|National Toxicology Program. Eleventh Report on Carcinogens (2005). The Report on Carcinogens is an informational scientific and public health document that identifies and discusses substances (including agents, mixtures, or exposure circumstances) that may pose a carcinogenic hazard to human health. Inorganic Arsenic Compounds are listed as known to be human carcinogens. /Arsenic Compounds, Inorganic/[Available from, as of July 31, 2009: http://ntp.niehs.nih.gov/ntp/roc/eleventh/profiles/s015arse.pdf]

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: Combustible material: may burn but does not ignite readily. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. (ERG, 2016)

|Danger|H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P321, P330, P391, P403+P233, P405, and P501|Aggregated GHS information provided by 43 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2016)

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. (ERG, 2016)|Workers should be supplied with suitable protective clothing, protective boots and when there is a risk that the exposure limit for airborne arsenic will be exceeded, respiratory protective equipment. /Arsenic cmpd/|Where there is occupational exposure to inorganic arsenic compounds, protective clothing shall be provided by the employers. This may include underwear, gloves, coveralls, and a hood over the head and neck. /Inorganic arsenic/|Wear appropriate personal protective clothing to prevent skin contact. /Arsenic (inorganic cmpd, as As)/|Wear appropriate eye protection to prevent eye contact. /Arsenic (inorganic cmpd, as As)/|For more Personal Protective Equipment (PPE) (Complete) data for ARSENIC TRIIODIDE (6 total), please visit the HSDB record page.

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. Do not use water on arsenic triiodide. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock down vapors.|Wear positive pressure self-contained breathing apparatus when fighting fires involving this material.|If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. /Arsenical cmpd, liquid, NOS/|If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. /Arsenical cmpd, solid, NOS/|Personnel protection: ... Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. /Arsenical cmpd, solid, NOS/

Prompt cleanup and removal are necessary. Control runoff and isolate discharged material for proper disposal.|Floors and other accessible surfaces contaminated with inorganic arsenic may not be cleaned by the use of compressed air, and shoveling and brushing may be used only where vacuuming or other relevant methods have been tried and found not to be effective. /Inorganic arsenic compounds/

If material not involved in fire: Use water spray to knock down vapors. Do not use water on material itself. Neutralize spilled material with crushed limestone, soda ash, or lime. Avoid breathing dusts, and fumes from burning material. Keep upwind. Do not handle broken packages without protective equipment.|Avoid bodily contact with the material. Wash away any material which may have contacted the body with copious amounts of water or soap and water.|WELL VENTILATED & ALL POISONOUS FUME ... CONDENSED & DUST CONTENT REMOVED. ... EXHAUST HOODS ... WORKTABLES ... EQUIPPED WITH DOWN-DRAUGHT ... VENTILATION. /ARSENIC CMPD/|IN ... /FACTORIES/ WITH ARSENIC HAZARD, FLOORS ... SHOULD BE ... IMPERMEABLE ... TO PREVENT ABSORPTION & ... FLUSHED DOWN FREQUENTLY WITH WATER. /ARSENIC CMPD/|For more Preventive Measures (Complete) data for ARSENIC TRIIODIDE (19 total), please visit the HSDB record page.

/GUIDE 152: SUBSTANCES - TOXIC (COMBUSTIBLE)/ Health: Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. /Arsenic compound, solid, NOS (Arsenic(III) iodide)/|/GUIDE 152: SUBSTANCES - TOXIC (COMBUSTIBLE)/ Fire or Explosion: Combustible material: may burn but does not ignite readily. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. /Arsenic compound, solid, NOS (Arsenic(III) iodide)/|/GUIDE 152: SUBSTANCES - TOXIC (COMBUSTIBLE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. /Arsenic compound, solid, NOS (Arsenic(III) iodide)/|/GUIDE 152: SUBSTANCES - TOXIC (COMBUSTIBLE)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Arsenic compound, solid, NOS (Arsenic(III) iodide)/|For more DOT Emergency Guidelines (Complete) data for ARSENIC TRIIODIDE (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Trivalent arsenic compounds are corrosive to the skin. /Trivalent arsenic cmpd/|ARSENICAL DUSTS ... ARE IRRITATING TO UPPER RESP TRACT & EYES. CONJUNCTIVITIS PRODUCED BY ... THESE SUBSTANCES ARE CHARACTERIZED BY ITCHING, BURNING, & WATERING OF EYES. ... /INORGANIC ARSENIC DUSTS/

8 hr Time-Weighted avg: 10 ug/cu m./Arsenic, inorganic cmpd (as As)/|Permissible Exposure Limit: Table Z-1 8-Hr Time Weighted Avg: 0.5 mg/cu m. /Arsenic, organic cmpd (as As)/

5 mg/cu m (as As); NIOSH considers arsenic (inorganic cmpd, as As) to be a potential occupational carcinogen. /Arsenic (inorganic cmpd, as As)/|Recommended Exposure Limit: 15 Ceiling Limit: (0.002 mg/cu m). /Arsenic (inorganic cmpd, as As)/|NIOSH usually recommends that occupational exposures to carcinogens be limited to the lowest feasible concentration. /Arsenic (inorganic compounds, as As)/

Listed as a hazardous air pollutant (HAP) generally known or suspected to cause serious health problems. The Clean Air Act, as amended in 1990, directs EPA to set standards requiring major sources to sharply reduce routine emissions of toxic pollutants. EPA is required to establish and phase in specific performance based standards for all air emission sources that emit one or more of the listed pollutants. Arsenic triiodide is included on this list.|(a) The owner or operator of an existing glass melting furnace subject to the provisions of this subpart shall comply with either paragraph (a)(1) or (a)(2) of this section ... (1) Uncontrolled total arsenic emissions from the glass melting furnace shall be less than 2.5 Mg (2.7 ton) per year, or ... (2) Total arsenic emissions from glass melting furnace shall be conveyed to a control device and reduced by at least 85%. /Total arsenic/|(b) The owner or operator of a new or modified glass melting furnace subject to the provisions of this subpart shall comply with either paragraph (b)(1) or (b)(2) of this section ... (1) Uncontrolled total arsenic emissions from the glass melting furnace shall be less than 0.4 Mg (0.44 ton) per year, or ... (2) Total arsenic emissions from glass melting furnace shall be conveyed to a control device and reduced by at least 85%. /Total arsenic/|The owner or operator of each copper converter subject to the provisions of this subpart shall reduce inorganic arsenic emissions to the atmosphere by meeting the following design, equipment, work practice, and operational requirements: (1) Install, operate, and maintain a secondary hood system on each copper converter. Each secondary hood system shall consist of a hood enclosure, air curtain fan(s), exhaust system fan(s), and ductwork that conveys the captured emission to a control device ... (2) Optimize the capture of secondary inorganic arsenic emission by operating the copper converter and secondary hood systems at all times ... . /Inorganic arsenic/|For more Atmospheric Standards (Complete) data for ARSENIC TRIIODIDE (6 total), please visit the HSDB record page.

D004; A waste containing arsenic may or may not be characterized as a hazardous waste following testing by the Toxicity Characteristic Leaching Procedure as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations. /Arsenic/

highly toxic

(Vet) Former use: For dermatitides in cats.|Former use: Donovan's Solution (Liquor arseni et hydrargyri iodidi) contains 1% each of arsenious iodide and mercuric iodide. Once used for syphilitic skin lesions, lymphadenitis and chronic joint diseases, this preparation is rarely used in present day therapeutics.

Fatal human dose 70-180 mg. (Estimated lethal dose for a 70 kg human as As (III)).

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. (ERG, 2016)|Carcinogens

Excerpt from ERG Guide 152 [Substances - Toxic (Combustible)]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2016)

arsenic iodide

Arsenous triiodide: ACTIVE

Health Hazards -> Carcinogens