Arsenic Chloride



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(2N) 99% Arsenic Chloride AS-CL-02 Request Quote
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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
Monoisotopic Mass 179.828
Exact 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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See 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. Arsenic Bohr ModelThe 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. Elemental ArsenicArsenic 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

Arsenate sorption on monohydrocalcite by coprecipitation during transformation to aragonite., Fukushi, Keisuke, Sakai Minoru, Munemoto Takashi, Yokoyama Yuka, and Takahashi Yoshio , J Hazard Mater, 2016 Mar 5, Volume 304, p.110-7, (2016)

Atmospheric metallic and arsenic pollution at an offshore drilling platform in the Bo Sea: A health risk assessment for the workers., Xu, Hong, Han Suqin, Bi Xiaohui, Zhao Zhijing, Zhang Lei, Yang Wenjie, Zhang Min, Chen Jing, Wu Jianhui, Zhang Yufen, et al. , J Hazard Mater, 2016 Mar 5, Volume 304, p.93-102, (2016)

A simple and sensitive fluorimetric aptasensor for the ultrasensitive detection of arsenic(III) based on cysteamine stabilized CdTe/ZnS quantum dots aggregation., Ensafi, Ali A., Kazemifard N, and Rezaei B , Biosens Bioelectron, 2016 Mar 15, Volume 77, p.499-504, (2016)

Assessment of arsenic bioaccessibility in raw and cooked edible mushrooms by a PBET method., Llorente-Mirandes, Toni, Llorens-Muñoz Mariona, Funes-Collado Virginia, Sahuquillo Àngels, and López-Sánchez José Fermín , Food Chem, 2016 Mar 1, Volume 194, p.849-56, (2016)

Arsenate substitution in lead hydroxyl apatites: A Raman spectroscopic study., Giera, Alicja, Manecki Maciej, Bajda Tomasz, Rakovan John, Kwaśniak-Kominek Monika, and Marchlewski Tomasz , Spectrochim Acta A Mol Biomol Spectrosc, 2016 Jan 5, Volume 152, p.370-7, (2016)

Origin of high ammonium, arsenic and boron concentrations in the proximity of a mine: Natural vs. anthropogenic processes., Scheiber, Laura, Ayora Carlos, Vázquez-Suñé Enric, Cendón Dioni I., Soler Albert, and Baquero Juan Carlos , Sci Total Environ, 2016 Jan 15, Volume 541, p.655-66, (2016)

Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels., Rehman, Saif Ur, Siddiq Mohammed, Al-Lohedan Hamad, Aktas Nahit, Sahiner Mehtap, Demirci Sahin, and Sahiner Nurettin , J Environ Manage, 2016 Jan 15, Volume 166, p.217-26, (2016)

Arsenite and arsenate removal from wastewater using cationic polymer-modified waste tyre rubber., Imyim, Apichat, Sirithaweesit Thitayati, and Ruangpornvisuti Vithaya , J Environ Manage, 2016 Jan 15, Volume 166, p.574-8, (2016)

Arsenate uptake by Al nanoclusters and other Al-based sorbents during water treatment., Mertens, Jasmin, Rose Jérôme, Wehrli Bernhard, and Furrer Gerhard , Water Res, 2016 Jan 1, Volume 88, p.844-51, (2016)

Comparison of arsenic and antimony biogeochemical behavior in water, soil and tailings from Xikuangshan, China., Fu, Zhiyou, Wu Fengchang, Mo Changli, Deng Qiujing, Meng Wei, and Giesy John P. , Sci Total Environ, 2016 Jan 1, Volume 539, p.97-104, (2016)