HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Cadmiumhydroxid
Cadmium hydrate · Cadmium hydroxide · Cadmium dihydoxide · cadmiumdihydroxide · CadmiumhydroxidePRS · CADMIUM (II) HYDROXIDE · CADMIUM HYDROXIDE 98% · Cadmium hydroxide, 99.98%
Identifikatoren & physikalische Daten
| CAS No. | 21041-95-2 |
|---|---|
| Summenformel | CdH4O2 |
| Durchschnittliche Molmasse | 148,44 g/mol |
| Monoisotopische Masse | 149,924494 g/mol |
| SMILES | O.O.[Cd] |
| InChIKey | XIYPBSADJSJKMF-UHFFFAOYSA-N |
| PubChem CID | 62749 |
| Lokaler Name | Cadmiumhydroxid |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 2 |
|---|---|
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 3 |
| Formalladung | 0 |
| Komplexität | 2,8 |
| Schmelzpunkt | 232 °C(lit.) |
| Dichte | 4.79 g/mL at 25 °C(lit.) |
| Löslichkeit | Soluble in dilute acids, NH{4}Cl solutionsSoluble in dilute acids. Slightly soluble in water0.026 g/100 mL. |
| Aggregatzustand | Powder |
| Wichte | 4.79 |
| Farbe | white trigonal or hexagonal, hexane crystals, crystalline |
| pH | 9.36(1 mM solution)9.36(10 mM solution)9.36(100 mM solution) |
| Merck | 14,1620 |
| InChI | 1S/Cd.2H2O/h2*1H2/q+2/p-2 |
| InChIKey | PLLZRTNVEXYBNA-UHFFFAOYSA-L |
| SMILES | O[Cd]O |
| CAS Datenbank | 21041-95-2(CAS DataBase Reference) |
| EPA chemische Informationen | Cadmium hydroxide (Cd(OH)2) (21041-95-2) |
Sicherheit & Vorschriften
| Minimum Risk Level | Acute Inhalation: 0.00003 mg/m3 (L134) Chronic Inhalation: 0.00001 mg/m3 (L134) Intermediate Oral: 0.0005 mg/kg/day (L134) Chronic Oral: 0.0001 mg/kg/day (L134) |
|---|---|
| Treatment | Cadmium poisoning is treated by removal from exposure and supportive care. If ingested, induced vomiting or gastric lavage may be performed. (L139) |
| Gesundheitliche Auswirkungen | Chronic exposure to cadmium fumes can cause chemical pneumonitis, pulmonary edema, and lung diseases such as bronchitis and emphysema. Cadmium also accumulates in the kidneys, causing permanent damage. Loss of bone density also occurs. (L6) |
| Expositionspfade | Oral (L6)inhalation (L6)dermal (L6) |
| Toxizitätsübersicht | Cadmium initially binds to metallothionein and is transported to the kidney. 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. Accumulation of cadmium in the kidney results in increased excretion of vital low and high weight molecular proteins. Cadmium is a high affinity zinc analog and can interfere in its biological processes. It also binds to and activates the estrogen receptor, likely stimulating the growth of certain types of cancer cells and causing other estrogenic effects, such as reproductive dysfunction. Cadmium causes cell apoptosis by activating mitogen-activated protein kinases. (L8, A18, A19, A28) |
| Signs and Symptoms | Acute inhalation of cadmium fumes results in metal fume fever, which is characterized by chills, fever, headache, weakness, dryness of the nose and throat, chest pain, and coughing. Ingestion of cadmium causes vomiting and diarrhea. (L6) |
| Carcinogen Classification | 1, carcinogenic to humans. (L135) |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 2570 6.1/PG 3 |
| RTECS-Nr. | EV1260000 |
| R-Sätze (R) | 20/21/22-50/53-68-62-48/23/25-26-63-45 |
Anwendungen & Verwendung
Verwenden
Cadmium hydroxide is used to prepare negative electrodes for cadmium-nickel batteries. It is a useful in biochemical for proteomics research. It may be used in cadmium plating and cadmium salt.
Herstellung & Synthese
synthetische
Cadmium hydroxide may be precipitated by adding any cadmium salt solution to a boiling solution of caustic soda or caustic potash:CdCl2 + 2NaOH → Cd(OH)2 + 2NaCl.