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Home > Specialty Chemicals > Selenium for Sale > Selenium 99.9% CAS 7782-49-2
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Selenium 99.9% CAS 7782-49-2

5 Inquiries

Unit Price: Get Latest Price
CAS No.:

7782-49-2

Grade:

Chemical Grade

Content:

99%

Packaging:

Request

Price valid (until):

2025-07-24

Company Type:
Trader
Location:
United States
Qualification:
Main Products:

Fertilizer,Food Additives,Water Chemicals,Industrial Chemicals,Solvents,Minning Chemicals

  • Product Description

  • Seller Information

  • Inquiry History

  • Description



    Selenium 99.9% CAS 7782-49-2


    Brief introduction

    1. Product name: Selenium Se powder
    2. Formula: Se 3. Purity: 99.9%- 99.999% 4. Cas No: 7782-49-2
    5. Appearance: black powder
    6. Particle size: 200 mesh

    Characteristic.

    Amorphous red powder, becoming black on standing and crystalline on heating; vitreous and colloidal forms may be prepared.
    Amorphous form softens at 40 °C and melts at 217 °C. It rarely occurs in its elemental state in nature, or as pure ore compounds.

    Application
    1 Manufacturing:selenium(I) chlorid,Selenium dichloride,Selenides, mercury selenide.
    2 Science high technology industry:lead selenide,zinc selenide, copper indium gallium diselenide.
    Electric:semiconductors,electropositive metals,Tetraselenium tetranitride.
    Chemistry:Selenols,selenium isotope,Plastics, photographic exposure.
    5 Industry application:Glass making,selenium drum, electrostatic photograph,optical instrument.

    Specification
    Symbol:
    Se
    CAS
    7782-49-2
    Atomic Number:
    34
    Atomic Weight:
    78.96
    Density:
    4.79 gm/cc
    Melting Point:
    217 oC
    Boiling Point:
    684.9 oC
    Thermal Conductivity:
    0.00519 W/cm/K @ 298.2 K
    Electrical Resistivity:
    106 microhm-cm @ 0 oC
    Electronegativity:
    2.4 Paulings
    Specific Heat:
    0.767 Cal/g/K @ 25 oC
    Heat of Vaporization:
    3.34 K-cal/gm atom at 684.9 oC
    Heat of Fusion:
    1.22 Cal/gm mole

    Basic Info
    Product Name:

    Selenium

    Other Name:

    Selenium;C.I. 77805;B-TRAXIM Se;Selenium (Se);Selsaf 2000;Serendipita MKCA6-3;95788-45-7;11125-23-8;11133-88-3;12640-29-8;12640-30-1;12641-96-2;12733-65-2;37256-19-2;37258-85-8;37276-15-6;37368-02-8;50954-17-1;51882-60-1

    CAS No.:

    7782-49-2

    Molecular Formula:

    Se

    InChIKeys:

    InChIKey=BUGBHKTXTAQXES-UHFFFAOYSA-N

    Molecular Weight:

    78.96

    Exact Mass:

    79.917

    EC Number:

    231-194-7

    HScode:

    28049090

    Categories:

    Characteristics
    PSA:

    0

    XLogP3:

    5

    Appearance:

    White to creamy white powder

    Density:

    4.8 g/cm3

    Melting Point:

    170-217 °C

    Boiling Point:

    685 °C

    Water Solubility:

    H2O: Insoluble

    Storage Conditions:

    Storage temperature: no restrictions.

    Vapor Pressure:

    <1 Pa (20 °C)

    Toxicity:

    Intravenous-rat LD50: 6 mg/kg; inhalation-rat LDL0: 33 mg/m3/8 hours

    Flammability characteristics:

    Combustible at high temperature; selenium oxide fumes are released in the fire

    Explosive limit:

    During attempted conversion of recovered selenium metal to the dioxide by heating in oxygen, a vigorous explosion occurred. This was attributed to selenium-catalysed oxidation traces of organic impurities in the selenium. Oxidation of recovered selenium with nitric acid is rendered vigorous by presence of organic impurities, but is a safe procedure.

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 3, Oral

    Acute toxicity - Category 3, Inhalation

    Specific target organ toxicity – repeated exposure, Category 2

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 4

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H301 Toxic if swallowed

    H331 Toxic if inhaled

    H373 May cause damage to organs through prolonged or repeated exposure

    H413 May cause long lasting harmful effects to aquatic life

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

    P271 Use only outdoors or in a well-ventilated area.

    P260 Do not breathe dust/fume/gas/mist/vapours/spray.

    P273 Avoid release to the environment.

    Response

    P301+P316 IF SWALLOWED: Get emergency medical help immediately.

    P321 Specific treatment (see ... on this label).

    P330 Rinse mouth.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P316 Get emergency medical help immediately.

    P319 Get medical help if you feel unwell.

    Storage

    P405 Store locked up.

    P403+P233 Store in a well-ventilated place. Keep container tightly closed.

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    NO open flames. NO contact with oxidizing agents. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from strong oxidants, strong acids and food and feedstuffs. Dry. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Fertilizer,Food Additives,Water Chemicals,Industrial Chemicals,Solvents,Minning Chemicals

    Location:

    30 N Gould St Ste R Sheridan, WY 82801

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    10

    Total Annual Revenue:

    $5 million-$10 million

    Total Employees:

    5-10

    Year of Establishment:

    2023

    Certifications:

    Certificate of good standing

    BLUENOTE TRADING LLC is a leading Trader supplier of Acetaminophen, Trichloroisocyanuric acid, Glycerol based in America. With a commitment to quality and customer satisfaction, BLUENOTE TRADING LLC has become a trusted name in the industry. Our product line includes a range of high-quality Acetaminophen, Trichloroisocyanuric acid, Glycerol, which are available at competitive prices. BLUENOTE TRADING LLC has established itself as a reliable supplier of chemical products on the echemi.com.

  • Inquiry History
    5 Inquiries
    Country Product Purchase Quantity Date Posted
    India

    selenium

    100 KG Nov 27, 2024
    India

    Selenium

    5.00 KG Dec 28, 2023
    India

    Selenium metal powder

    1 MT Apr 4, 2024
    United Arab Emirates

    Selenium Granular X-Ray Degree Se Oxigen-Free 99.999% Purity

    1 KG Apr 14, 2026
    India

    Selenium Granules X Ray Grade 5N

    1 KG Feb 25, 2026
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