카드뮴 셀레니드

Dry Powder

White to brown solid; Turns red in sunlight; [Merck Index] Red or black odorless powder; Insoluble in water; [MSDSonline]

Danger

H301+H331 (32.5%): Toxic if swallowed or if inhaled [Danger Acute toxicity, oral; acute toxicity, inhalation]

P203, P260, P261, P264, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P316, P317, P318, P319, P321, P330, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 323 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

H302: Harmful if swallowed [Warning Acute toxicity, oral]

Chemical: Cadmium selenide (CdSe)

Cadmium selenide (CdSe) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cadmium selenide (CdSe) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 04-10-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/23754

Restricted substance: Cadmium selenide

Cadmium selenide: Does not have an individual approval but may be used under an appropriate group standard

Acute Tox. 3 (98.1%)

Acute toxicity - category 4

Cadmium is absorbed from oral, inhalation, and dermal routes. Cadmium initially binds to metallothionein and albumin and is transported mainly to the kidney and liver. Toxic effects are observed once the concentration of cadmium exceeds that of available metallothionein, and it has also been shown that the cadmium-metallothionein complex may be damaging. Cadmium is not known to undergo any direct metabolic conversion and is excreted unchanged, mainly in the urine. Selenium may be absorbed through inhalation and ingestion, while some selenium compounds may also be absorbed dermally. Once in the body, selenium is distributed mainly to the liver and kidney. Selenium is an essential micronutrient and is a component of glutathione peroxidase, iodothyronine 5'-deiodinases, and thioredoxin reductase. Organic selenium is first metabolized into inorganic selenium. Inorganic selenium is reduced stepwise to the intermediate hydrogen selenide, which is either incorporated into selenoproteins after being transformed to selenophosphate and selenocysteinyl tRNA or excreted into the urine after being transformed into methylated metabolites of selenide. Elemental selenium is also methylated before excretion. Selenium is primarily eliminated in the urine and feces, but certain selenium compounds may also be exhaled. (L619, L6)

Used in photoconductors, semiconductors, photoelectric cells, rectifiers, and phosphors; [Merck Index] Used as red pigment; [Hawley]

Semiconductor Manufacturing [Category: Industry]

Cadmium selenide is used as a semiconductor. It is also found in laser diodes. (L471)