HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Disilberoxalat
SILVER OXALATE · disilveroxalate · Silver(I) oxalate · disilver ethanedioate · oxalicaciddisilversalt · oxalicacidsilversalt(1:2) · oxalicacid,disilver(1+)salt · ethanedioicacid,disilver(1+)salt
Identifikatoren & physikalische Daten
| CAS No. | 533-51-7 |
|---|---|
| Summenformel | C2Ag2O4 |
| Durchschnittliche Molmasse | 303,76 g/mol |
| Monoisotopische Masse | 301,78984 g/mol |
| SMILES | O=C([O-])C(=O)[O-].[Ag+].[Ag+] |
| InChIKey | XNGYKPINNDWGGF-UHFFFAOYSA-L |
| PubChem CID | 62364 |
| EC No. | 208-568-3 |
| DTXSID | DTXSID90201448 |
| Lokaler Name | Disilberoxalat |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 80,3 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 4 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 8 |
| Formalladung | 0 |
| Komplexität | 60,5 |
| Schmelzpunkt | 140°C (rough estimate) |
| Dichte | 5.03 |
| Aggregatzustand | white crystalline powder |
| Farbe | white crystals, crystalline powder |
| Löslichkeit | g/L solution H2O: 0.041 (25°C) [KRU93]soluble moderately conc HNO3, ammonia [MER06] |
| InChI | InChI=1S/C2H2O4.2Ag/c3-1(4)2(5)6/h(H,3,4)(H,5,6)/q2*+1/p-2 |
| InChIKey | XNGYKPINNDWGGF-UHFFFAOYSA-L |
| SMILES | C12=O[Ag+][O-]C1=O[Ag+][O-]2 |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 4.6% (5 of 109) of reports.DangerH201 (95.4%): (Deleted) Explosivemass explosion hazard [Danger Explosives]P210, P230, P240, P250, P264, P270, P273, P280, P301+P317, P302+P352, P317, P321, P330, P362+P364, P370+P380, P372, P373, P391, P401, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 109 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| DOT Hazard Classification | Silver oxalate (dry)Forbidden explosives/materials (49 eCFR § 173.54/§ 173.21) |
| Hazard Classes and Categories | Expl. 1.1 (95.4%) |
| Gesundheitliche Auswirkungen | Silver itself is not toxic to humans, but most silver salts are. In large doses, silver and compounds containing it can be absorbed into the circulatory system and become deposited in various body tissues, leading to argyria, which results in a blue-grayish pigmentation of the skin, eyes, and mucous membranes. Argyria is rare, and although, so far as known, this condition does not otherwise harm a person's health, it is disfiguring and usually permanent. Mild forms of argyria are sometimes mistaken for cyanosis. (L809) |
| Expositionspfade | Oral (L808)inhalation (L808)dermal (L808) |
| Toxizitätsübersicht | Metallic silver is oxidized and may deposit in the tissues, causing arygria. The silver ion is known to inhibit glutathione peroxidase and NA+,K+-ATPase activity, disrupting selenium-catalyzed sulfhydryl oxidation-reduction reactions and intracellular ion concentrations, respectively. Silver nanoparticles are believed to disrupt the mitochondrial respiratory chain, causing oxidative stress, reduced ATP synthesis, and DNA damage. (L808, A243, A244, A245, A246) |
| Signs and Symptoms | Exposure to high levels of silver for a long period of time may result in a condition called arygria, a blue-gray discoloration of the skin and other body tissues. Argyria is a permanent effect but does not appear to be harmful to health. Exposure to high levels of silver in the air has resulted in breathing problems, lung and throat irritation, and stomach pains. Skin contact with silver can cause mild allergic reactions such as rash, swelling, and inflammation in some people. (L808) |
Anwendungen & Verwendung
Beschreibung
Silver oxalate (Ag2C2O4) is commonly employed in experimental petrology to add carbon dioxide (CO2) to experiments as it will break down to silver (Ag) and the carbon dioxide under geologic conditions . It is explosive upon heating , shock or friction .
Verwenden
Exptl photographic emulsion (low sensitivity).