Arsenic

MATERIAL OVERVIEW

Characteristics: Silver-gray brittle, crystalline solid that darkens in moist air. Allotropic forms: black, amorphous solid (beta-arsenic); yellow, crystalline solid. Mohs hardness 3.5; insoluble in water, caustic and nonoxidizing acids. Attacked by HCl in presence of oxidant. Reacts with nitric acid. Low thermal conductivity; a semiconductor.

Derivation: Flue dust from smelting of copper, gold and lead, from which white arsenic (arsenic trioxide) is obtained as a byproduct, in varying degrees of purity. This is reduced with charcoal. Arsenic is no longer produced in the U.S.

Hazard: Arsenic and inorganic arsenic compounds are toxic by ingestion and inhalation. A known carcinogen. Exposure limits: 0.01 mg/m3 of air.

To view a photo of the item hover over the camera_nopreview icon.

GENERAL PROPERTIES

Symbol: As
Atomic Number: 33
Atomic Weight: 74.9216
Density: 5.73gm/cc
Melting Point: 817 oC (28 Atm)
Boiling Point: 613 oC subl.
Thermal Conductivity: 0.502 W/cm/K @ 298.2 K
Electrical Resistivity: 33.3 microhm-cm @ 20 oC
Electronegativity: 2.0 Paulings
Specific Heat: 0.0785 Cal/g/K @ 25 oC
Heat of Vaporization: 7.75 K-cal/gm atom at 2467 oC
Heat of Fusion: 6.62 Cal/gm mole

 

TYPICAL ANALYSES - Impurities in ppm

Material / Purity:

6N

Ca

<1

Cu

<1

Fe

<1

Pb

<1

Mg

<1

Si

<1

Sb

1

ARSENIC LUMP

 Material

Purity

Arsenic Lump, 100 Gram Ampoule

6N

Lump is sold pre-packaged in glass ampoules under dry argon. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.    

 

ARSENIC COMPOUNDS

 Material

 Purity

Arsenic Oxide, As2O3, Powder msds1

4N, 5N

Arsenic Selenide, As2Se3, 1/4" Pieces by Down

2N, 5N

Compounds are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.

 

 

Material Safety Data Sheet - MSDS
Arsenic MSDS
Technical Data Sheets
Arsenic
Understanding Mesh Sizes

Home Page Content Under Periodic Table

ALLOYS

Click on the Alloy to go to the Online Catalog page.

 

Welcome to

ESPI was incorporated in 1950 with a mission to provide a competitive source for high purity metals, metal compounds and alloys. We are a valuable resource for virtually all major universities worldwide, global corporate R&D laboratories, thousands of domestic and international manufacturing companies and all U.S. government research laboratories. ESPI offers unique advantages often unavailable from larger organizations with no minimum order size & all business hour calls are handled by a competent sales representative. Automated answering systems and voice mail are not an option at ESPI.

Located within our fabrication facility is the melting department, forging & shaping areas, and the rod & wire, and sheet & foil departments providing the following manufacturing capabilities:

  • Casting of pure metals and alloys
  • Vacuum arc melting
  • Induction melting
  • Rod and wire drawing/extrusion
  • Sheet, foil and ribbon rolling
  • CNC milling and machining

Tel: 541-488-8311 - Email: sales@espimetals.com - or click the "Live Help/Chat Now" icon, upper right.

 

FORMS

ESPI produces and sells 68 elements and dozens of alloys in various forms for your custom needs. Click on the forms below to be directed to detailed information on manufacturing.

 

 

At We Keep Good Company


Aerospace and Defense
Northrop Grumman, Hewlett Packard, IBM, Lockheed-Martin, Hughes, Boeing, General Dynamics, Aerojet, Litton, General Electric


Medical Instruments & Technology
Cintron, Hologic/Lorad, Varian, Siemens Medical, St Jude Medical, ArthroCare, GE Medical, Harvard Medical School, City of Hope Medical Center, American Medical Systems, Cedars Sinai Medical Center


International
Atomic Energy of Canada, CNRS, European Synchrotron Radiation Facility, INRS, Alberta Research Council, National Research Council of Canada, UNAM, CISRO, CERN


Education
Stanford, UCLA, Harvard, Georgia Institute of Technology, Caltech, Johns Hopkins University, University of Arizonia, Penn State, University of Michigan, Princeton, Yale, University of Wollongong, University of Tokoyo, University of Toronto, Tulane, University of New South Wales, Max-Planck Institute, University of Freiburg


Government Research Labs
JPL, Los Alamos National Lab, Battelle Pacific NW National Lab, US Department of Energy, Argonne National Lab, Brookhaven National Lab, Naval Oceans Systems Center, US Air Force, Lawrence Berkeley National Lab, NASA


Green Energy
Origin Energy Solar, First Solar, Schott Solar, SunPower Corporation, Nanosolar, Inc.