MATERIAL PROFILE / Individual substance
CAS: 7782-49-2
Function: Individual chemical research reference
Compare this material →This material’s published information has not yet been verified by a human reviewer.
Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.Amorphous or crystalline, red to gray solid. [Note: Occurs as an impurity in most sulfide ores.] Source-checked chemical identity with NIOSH physical-property and occupational-hazard context. Supplier grade, manufacturing origin and EcoSafe assessment require separate review.
Chemistry: Selenium
Listed supplier: Supplier not selected · substance baseline
Chemical identity only; purity, grade and supplier composition require separate documentation.
Identity snapshot: 2026-11-02 UTC.
CAS identity reference ↗14 of 16 defined fields have sourced information. This is data coverage, not a safety score, EcoSafe assessment or human-verification mark.
CAS cross-check: CAS 7782-49-2 appears on the NIOSH card and in the returned PubChem CID’s synonyms. The CAS checksum and molecular-weight consistency were screened; variable-form and ambiguous matches were held out.
NIOSH identity & property source ↗ · PubChem CID 6326970 ↗
Synonyms: SELENIUM · Elemental selenium · Selenium elemental · Selen · Vandex · Selenium, elemental · Gray selenium · Selenium base
Physical description: Amorphous or crystalline, red to gray solid. [Note: Occurs as an impurity in most sulfide ores.]
Occupational hazard context: irritation eyes, skin, nose, throat; visual disturbance; headache; chills, fever; dyspnea (breathing difficulty), bronchitis; metallic taste, garlic breath, gastrointestinal disturbance; dermatitis; eye, skin burns; In Animals: anemia; liver necrosis, cirrhosis; kidney, spleen damage
The hazard text above reproduces the NIOSH symptoms field; it is not a complete GHS classification, exposure assessment or current supplier SDS. Read the original card and applicable supplier documentation.
Missing core fields: Uses · Density
Grade-specific properties, verified manufacturing origin and EcoSafe assessments are tracked separately and are not established by this import.
Source snapshot accessed 2026-11-02. The access date is not the source’s publication or revision date.
NIOSH substance reference · not a supplier-grade specification. Source wording and units are retained, including °F. A missing temperature, pressure or test method has not been assumed. Specific gravity is not mass density; solubility and water reactivity are distinct.
| Property | Value | Conditions / method |
|---|---|---|
| Solubility | Insoluble Substance reference | Conditions retained in source value where stated; otherwise unspecified. Confirm form and conditions in the original card. Method not stated in extracted NIOSH field Source ↗ |
| Boiling point | 1265°F Substance reference | Conditions retained in source value where stated; otherwise unspecified. Confirm form and conditions in the original card. Method not stated in extracted NIOSH field Source ↗ |
| Specific gravity | 4.28 Substance reference | Conditions retained in source value where stated; otherwise unspecified. Confirm form and conditions in the original card. Method not stated in extracted NIOSH field Source ↗ |
| Melting / softening behavior | 392°F Substance reference | Conditions retained in source value where stated; otherwise unspecified. Confirm form and conditions in the original card. Method not stated in extracted NIOSH field Source ↗ |
Archived copies are dated references. Confirm the latest document for your supplier, grade and region.
Technical reference · CDC / NIOSH
Source revision: see original card; accessed November 2, 2026 · US occupational reference
Non-branded substance reference, not an SDS or exact-grade TDS. Contains physical properties and occupational hazard context; current supplier documentation is still needed.
Supplier access / request ↗SDS · Fisher Scientific / supplier listed in SDS
19-Dec-2025 · US / English (requested source variant; confirm document)
Identification and composition CAS match the substance. This is a supplier reference, not proof of another grade’s composition or suitability. A dated copy is stored in the private document repository; open the original supplier source for current information.
Supplier access / request ↗An exact-grade regional SDS has not yet been archived for public access on this site.
Confirm grade, composition, current availability and production location directly with the supplier.
No material-specific supplier match has been added yet.
Identity data and category placement do not establish safety, suitability or environmental performance. Obtain current grade-specific documentation.
Industrial Chemicals
Base Chemicals & Intermediates · Inorganic Chemicals
Library source check: November 2, 2026. Sources may require supplier access.