Selenium

Selenium(IV) oxide, 99.8%, ACROS Organics™

Chemical Name or Material: Selenium(IV) oxide CAS: 7446-08-4 Purity Grade: Trace Metal Basis Assay: ≥99.75% (metals basis) Assay Percent Range: 99.8% Molecular Formula: O2Se Linear Formula: SeO2 Formula Weight: 110.96 Synonym: Selenium dioxide

Potassium selenocyanate, 99%, ACROS Organics™

Chemical Name or Material: Potassium selenocyanate Assay: ≥98.5% (Argentometry) Assay Percent Range: 99% Molecular Formula: CKNSe Linear Formula: KSeCN Formula Weight: 144.08 MDL Number: MFCD00011366

Molybdenum(IV) selenide, 99.9% (metals basis), Alfa Aesar™

Chemical Name or Material: Molybdenum(IV) selenide CAS: 12058-18-3 Physical Form: Powder Assay Percent Range: 99.9% (metals basis) Molecular Formula: MoSe2 Formula Weight: 253.87 MDL Number: MFCD00014216

Selenium, Powder, 200 mesh 99.5+%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Selenium Assay: ≥99.50% Assay Percent Range: 99.5+% Molecular Formula: Se Linear Formula: Se Formula Weight: 78.96

Selenium sulfide, 94%, Alfa Aesar™

Chemical Name or Material: Selenium sulfide CAS: 7488-56-4 Physical Form: Powder Assay Percent Range: 94% Molecular Formula: SeS2 Formula Weight: 143.09 MDL Number: MFCD00011227 Synonym: Selenium disulfide

Selenium sulfide, 97%, Alfa Aesar™

Chemical Name or Material: Selenium sulfide CAS: 7488-56-4 Physical Form: Powder Assay Percent Range: 97% Molecular Formula: SeS2 Formula Weight: 143.09 MDL Number: MFCD00011227 Synonym: Selenium disulfide

Selenium Shot, amorphous, 1 to 5mm (0.04 to 0.20in.), 99.999% (Metals basis), Alfa Aesar™

Chemical Name or Material: Selenium CAS: 7782-49-2 Physical Form: Shot, Amorphous, Solid In Various Forms, 1 To 5mm (0.04 To 0.20 in.) Assay Percent Range: >99.999% (Metals basis) MDL Number: MFCD00134090

Selenium shot, 99.99% (metals basis), Alfa Aesar™, Puratronic™

Chemical Name or Material: Selenium CAS: 7782-49-2 Physical Form: Shot, Amorphous, 2 To 6mm (0.08 To 0.2 in.) Assay Percent Range: 99.999% (Metals basis) MDL Number: MFCD00134090

Selenium, 99.7%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Selenium Name Note: <325 mesh CAS: 7782-49-2 Physical Form: Powder Assay: ≥99.0% Assay Percent Range: 99+% Molecular Formula: Se Linear Formula: Se Formula Weight: 78.96 MDL Number: MFCD00134090

Sodium selenite, 44-46% Se, anhydrous, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Sodium selenite Name Note: Anhydrous CAS: 10102-18-8 Assay: 44 to 46% (Se) Molecular Formula: Na2O3Se Linear Formula: Na2SeO3 Formula Weight: 172.94 MDL Number: MFCD00003489

Selenium(IV) oxide, 99.999%, (trace metal basis), ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Selenium(IV) oxide Name Note: 99.999% CAS: 7446-08-4 Purity Grade: Trace Metal Basis Assay Percent Range: 99.999% Molecular Formula: O2Se Linear Formula: SeO2 Formula Weight: 110.96 MDL Number: MFCD00003562 Synonym: Selenium dioxide

Selenious acid, 98%, ACROS Organics™

Chemical Name or Material: Selenious acid Assay: ≥97.5% (Iodometry) Assay Percent Range: 98% Molecular Formula: H2O3Se Formula Weight: 128.97

Selenium Powder, -325 mesh, 99.5% (Metals basis), Alfa Aesar™

Chemical Name or Material: Selenium CAS: 7782-49-2 Physical Form: Powder Assay Percent Range: 99.5% (Metals basis) MDL Number: MFCD00134090

Selenium(IV) oxide, 99.4% (Metals Basis), Alfa Aesar™

Chemical Name or Material: Selenium(IV) oxide CAS: 7446-08-4 Physical Form: Powder or Lump Assay Percent Range: 99.4% (Metals Basis) Molecular Formula: O2Se Formula Weight: 110.96 MDL Number: MFCD00003562 Synonym: Selenium dioxide

Selenium(IV) oxychloride, 97%, ACROS Organics™

Chemical Name or Material: Selenium(IV) oxychloride Name Note: 97% CAS: 7791-23-3 Assay Percent Range: 97% Molecular Formula: Cl2OSe Linear Formula: SeOCl2 Formula Weight: 165.86 MDL Number: MFCD00016327 Synonym: Seleninyl chloride

Selenium powder, -200 mesh, 99.999% (metals basis)

Chemical Name or Material: Selenium CAS: 7782-49-2 MDL Number: MFCD00134090 UN Number: UN3077

Selenium Tetrachloride, MP Biomedicals

Chemical Name or Material: Selenium Tetrachloride CAS: 10026-03-6 Formula Weight: 220.77

Selenium, Black 99+, EMD Millipore™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Selenium CAS: 7782-49-2 Molecular Formula: Se (Hill) Formula Weight: 78.96

Selenium(IV) Oxide p.a., ACROS Organics™

Chemical Name or Material: Selenium(IV) oxide Name Note: p.a. CAS: 7446-08-4 Assay: ≥99% (metals basis) Molecular Formula: O2Se Linear Formula: SeO2 Formula Weight: 110.96 Synonym: Selenium dioxide

Selenium sulfide, 94+%, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Selenium sulfide Assay: 52 to 55.5% (Se) Assay Percent Range: 94+% Molecular Formula: S2Se Linear Formula: SeS2 Formula Weight: 143.08 MDL Number: MFCD00011227

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