Arsenic Chloride




Product Code Available Product Forms Request A Quote
AS-CL-02 (2N) 99% Arsenic Chloride Request
AS-CL-03 (3N) 99.9% Arsenic Chloride Request
AS-CL-04 (4N) 99.99% Arsenic Chloride Request
AS-CL-05 (5N) 99.999% Arsenic Chloride Request


Compound Formula AsCl3
Molecular Weight 181.28
Appearance colourless liquid
Melting Point -16.2 °C, 257 K, 3 °F
Boiling Point 130.2 °C, 403 K, 266 °F
Density 2.15g/cm3
Exact Mass 179.828
Monoisotopic Mass 179.828

Health & Safety Info  |  MSDS / SDS

Signal Word Danger
Hazard Statements H301-H331-H410
Hazard Codes T,N
Risk Codes 23/25-50/53
Safety Statements 20/21-28-45-60-61
RTECS Number N/A
Transport Information UN 1560 6.1/PG 1
WGK Germany 3
Globally Harmonized System of Classification and Labelling (GHS) N/A


Arsenic Chloride is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Arsenic trichloride, Trichloroarsine, Arsenic butter, Arsenous chloride, Arsenic(III) chloride, Arsenous trichloride, Fuming liquid arsenic, Caustic oil of arsenic

Chemical Identifiers

Formula AsCl3
CAS 7784-34-1
Pubchem CID 24570
MDL MFCD00014165
EC No. 232-059-5
IUPAC Name trichloroarsane
Beilstein Registry No. N/A
InchI Identifier InChI=1S/AsCl3/c2-1(3)4

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

Related Products

AsSee more Arsenic products. Arsenic (atomic symbol: As, atomic number: 33) is a Block P, Group 15, Period 4 element with an atomic radius of 74.92160. The number of electrons in each of arsenic's shells is 2, 8, 18, 5 and its electron configuration is [Ar] 3d10 4s2 4p3. The arsenic atom has a radius of 119 pm and a Van der Waals radius of 185 pm. Arsenic was discovered in the early Bronze Age, circa 2500 BC. It was first isolated by Albertus Magnus in 1250 AD. In its elemental form, arsenic is a metallic grey, brittle, crystalline, semimetallic solid. Arsenic is found in numerous minerals including arsenolite (As2O3), arsenopyrite (FeAsS), loellingite (FeAs2), orpiment (As2S3), and realgar (As4S4). Arsenic has numerous applications as a semiconductor and other electronic applications as indium arsenide, silicon arsenide and tin arsenide. Arsenic is finding increasing uses as a doping agent in solid-state devices such as transistors.


Recent Research & Development for Arsenic

  • Endoplasmic reticulum stress mediates the arsenic trioxide-induced apoptosis in human hepatocellular carcinoma cells. Zhang XY, Yang SM, Zhang HP, Yang Y, Sun SB, Chang JP, Tao XC, Yang TY, Liu C, Yang YM. Int J Biochem Cell Biol. 9/30/2015
  • Oral bioaccessibility of arsenic, mercury and methylmercury in marine species commercialized in Catalonia (Spain) and health risks for the consumers. Cano-Sancho G, Perelló G, Maulvault AL, Marques A, Nadal M, Domingo JL. Food Chem Toxicol. 9/30/2015
  • Adaptation in Toxic Environments: Arsenic Genomic Islands in the Bacterial Genus Thiomonas. Freel KC, Krueger MC, Farasin J, Brochier-Armanet C, Barbe V, Andrès J, Cholley PE, Dillies MA, Jagla B, Koechler S, Leva Y, Magdelenat G, Plewniak F, Proux C, Coppée JY, Bertin PN, Heipieper HJ, Arsène-Ploetze F. PLoS One. 9/25/2015
  • Relationship between Arsenic (+3 Oxidation State) Methyltransferase Genetic Polymorphisms and Methylation Capacity of Inorganic Arsenic. Agusa T, Kunito T, Minh Tue N, Thi Mai Lan V, Binh Minh T, Thi Kim Trang P, Fujihara J, Takeshita H, Takahashi S, Hung Viet P, Tanabe S, Iwata H. Nihon Eiseigaku Zasshi. 9/23/2015
  • Arsenic-induced responses in Pityrogramma calomelanos (L.) Link: Arsenic speciation, mineral nutrition and antioxidant defenses. Campos NV, Arcanjo-Silva S, Viana IB, Batista BL, Barbosa F, Loureiro ME, Ribeiro C, Azevedo AA. Plant Physiol Biochem. 9/23/2015
  • Transport of gadolinium- and arsenic-based pharmaceuticals in saturated soil under various redox conditions. Menahem A, Dror I, Berkowitz B. Chemosphere. 9/23/2015
  • Arsenic biotransformation by cyanobacteria from mining areas: evidences from culture experiments. Franco MW, Ferreira FA, Vasconcelos IF, Batista BL, Pujoni DG, Magalhães SM, Barbosa F Jr, Barbosa FA. Environ Sci Pollut Res Int. 9/22/2015
  • Linking selective chemical extraction of iron oxyhydroxides to arsenic bioaccessibility in soil. Palumbo-Roe B, Wragg J, Cave M. Environ Pollut. 9/21/2015
  • Potential of Raman spectroscopy to monitor arsenic toxicity on bacteria: insights toward multiparametric bioassays. Bittel M, Cordella CB, Assaf A, Jouanneau S, Durand MJ, Thouand G. Environ Sci Technol. 9/11/2015
  • Determination of low concentrations of iron, arsenic, selenium, cadmium, and other trace elements in natural samples using an octopole collision/reaction cell equipped quadrupole-inductively coupled plasma mass spectrometer. Dial AR, Misra S, Landing WM. Rapid Commun Mass Spectrom. 9/11/2015

Recent Research & Development for Chlorides

  • Reduction of cytotoxicity of benzalkonium chloride and octenidine by Brilliant Blue G. Bartok M, Tandon R, Alfaro-Espinoza G, Ullrich MS, Gabel D. EXCLI J. 10/14/2015
  • Crystal structure of 4,6-di-amino-2,2-dimethyl-3-[3-(2,4,5-tri-chloro-phen-oxy)prop-oxy]-2,3-di-hydro-1,3,5-triazin-1-ium chloride methanol monosolvate. Khongsuk P, Prabpai S, Kongsaeree P. Acta Crystallogr E Crystallogr Commun. 10/5/2015
  • Oxidative Dimerization of Silylallenes via Activation of the Allenic C(sp2)-H Bond Catalyzed by Copper(I) Chloride and N-Hydroxyphthalimide. Sabbasani VR, Lee D. Org Lett. 9/28/2015
  • The antimicrobial activity of free and immobilized poly (diallyldimethylammonium) chloride in nanoparticles of poly (methylmethacrylate). Sanches LM, Petri DF, de Melo Carrasco LD, Carmona-Ribeiro AM. J Nanobiotechnology. 9/24/2015
  • Genomic and chromosomal damage in the marine mussel Mytilus galloprovincialis: Effects of the combined exposure to titanium dioxide nanoparticles and cadmium chloride. Rocco L, Santonastaso M, Nigro M, Mottola F, Costagliola D, Bernardeschi M, Guidi P, Lucchesi P, Scarcelli V, Corsi I, Stingo V, Frenzilli G. Mar Environ Res. 9/23/2015
  • Synthesis, Fluorescence Spectra, Redox Property and the DNA Binding Studies of 7-phenylacenaphtho[1,2-b]quinoxalin-7-ium chloride: Evidences of the Formation of Neutral Radical Analogue. Kundu S, Banerjee A, De A, Khan AY, Kumar GS, Bhadra R, Ghosh P. J Fluoresc. 9/21/2015
  • Effects of sodium chloride exposure on ion regulation in larvae (glochidia) of the freshwater mussel Lampsilis fasciola. Nogueira LS, Bianchini A, Wood CM, Loro VL, Higgins S, Gillis PL. Ecotoxicol Environ Saf. 9/15/2015
  • Fucosterol protects cobalt chloride induced inflammation by the inhibition of hypoxia-inducible factor through PI3K/Akt pathway. Sun Z, Mohamed MA, Park SY, Yi TH. Int Immunopharmacol. 9/7/2015
  • Nickel chloride (NiCl2)-caused inflammatory responses via activation of NF-?B pathway and reduction of anti-inflammatory mediator expression in the kidney. Guo H, Deng H, Cui H, Peng X, Fang J, Zuo Z, Deng J, Wang X, Wu B, Chen K. Oncotarget. 9/2/2015
  • Expanding Spectrum of Sodium Potassium Chloride Co-transporters in the Pathophysiology of Diseases. Jaggi AS, Kaur A, Bali A, Singh N. Curr Neuropharmacol. 4/21/2015

Free Test Sample Program

We recognize many of our customers are purchasing small quantities directly online as trial samples in anticipation of placing a larger future order or multiple orders as a raw material for production. Since our primary business is the production of industrial quantities and/or highly consistent batches which can be used for commercial production and purchased repeatedly in smaller quantity, American Elements offers trial samples at no charge on the following basis. Within 6 months of purchasing materials directly online from us, you have the option to refer back to that order and advise that it is the intention of your company, institution or lab to either purchase a larger quantity, purchase the material in regular intervals or purchase more on some other basis.

We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.