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| CAS No.: | 1310-53-8 |
|---|---|
| Name: | Germanium(IV) oxide (hexagonal, quartz type) GEOCHEM2 |
| Molecular Structure: | |
|
|
|
| Formula: | GeO2 |
| Molecular Weight: | 104.59 |
| Synonyms: | Germania;Germania (GeO2);Germanium dioxide;Germanium dioxide (GeO2);Germanium(IV) oxide;J 005 (oxide);NSC 294212; |
| EINECS: | 215-180-8 |
| Density: | 6.239 g/cm3 |
| Melting Point: | 1115 °C |
| Boiling Point: | 1200ºC |
| Solubility: | 0.4 g/100 mL in water |
| Appearance: | white powder |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 22 |
| Safety: | 22-24/25 |
| PSA: | 34.14000 |
| LogP: | -0.39340 |
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Consensus Reports
Reported in EPA TSCA Inventory.
Specification
The Dioxogermane, with the cas registry number 1310-53-8, is a kind of white powder. This kind of chemical is insoluble in water and muriatic acid while soluble in ethylene glycol. As to its usage, it is widely applied in many ways. It could be used in producing germanium and also in the spectral analysis and semiconductor [semiconducting] material; It could alse be usually used in electronic industry.
The physical properties of this chemical are below: (1)#H bond acceptors: 2; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 34.14; (5)Exact Mass: 105.911007; (6)MonoIsotopic Mass: 105.911007; (7)Topological Polar Surface Area: 34.1; (8)Heavy Atom Count: 3; (9)Complexity: 18.3; (10)Covalently-Bonded Unit Count: 1; (11)Melting Point: >400 °C(lit.); (12)Density: 6.239 g/mL at 25 °C; (13)Refractive index: 1.99.
The production method of this chemical is below: add 6.5 volume of water into the germanium tetrachloride and then stir to keep for one night to get germanium dioxide sediment; Next wash with cold water untill it do not contain any Cl-; Lastly dry to 200℃ to get this product. The chemical equation is as below: GeCl4+2H2O→GeO2+4HCl.
When you are using this chemical, you should be very cautious. Being among the harmful chemicals, it may cause damage to health. If swallowed, it will be very dangerous. Therefore, you should avoid contacting with skin and eyes and then do not breathe dust.
Additionally, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: O=[Ge]=O
(2)InChI: InChI=1S/GeO2/c2-1-3
(3)InChIKey: YBMRDBCBODYGJE-UHFFFAOYSA-N
Below are the toxicity information of this chemical:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LDLo | intraperitoneal | 400mg/kg (400mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| man | TDLo | oral | 1614mg/kg/22W (1614mg/kg) | BEHAVIORAL: ANOREXIA (HUMAN GASTROINTESTINAL: NAUSEA OR VOMITING KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" | Nephron. Vol. 54, Pg. 53, 1990. |
| mouse | LD50 | intraperitoneal | 1550mg/kg (1550mg/kg) | BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) | Oyo Yakuri. Pharmacometrics. Vol. 16, Pg. 671, 1978. |
| mouse | LD50 | oral | 1250mg/kg (1250mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 71, 1982. | |
| mouse | LD50 | subcutaneous | 2550mg/kg (2550mg/kg) | Oyo Yakuri. Pharmacometrics. Vol. 21, Pg. 773, 1981. | |
| rabbit | LD50 | subcutaneous | 845mg/kg (845mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rat | LC50 | inhalation | > 1420mg/m3/4H (1420mg/m3) | LUNGS, THORAX, OR RESPIRATION: DYSPNEA SKIN AND APPENDAGES (SKIN): HAIR: OTHER | Food and Chemical Toxicology. Vol. 32, Pg. 1037, 1994. |
| rat | LD50 | intraperitoneal | 750mg/kg (750mg/kg) | LUNGS, THORAX, OR RESPIRATION: CHRONIC PULMONARY EDEMA LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 8, Pg. 466, 1953. |
| rat | LD50 | oral | 1250mg/kg (1250mg/kg) | "Investigations in the Field of Organogermanium Chemistry," Rijkens, F., and G.J.M. Van Der Kerk, Utrecht, Netherlands, Schotanus & Jens Utrecht N.V., 1964Vol. -, Pg. 95, 1964. | |
| rat | LD50 | subcutaneous | 1910mg/kg (1910mg/kg) | Oyo Yakuri. Pharmacometrics. Vol. 21, Pg. 773, 1981. | |
| women | TDLo | oral | 1660mg/kg/17W (1660mg/kg) | BEHAVIORAL: ANOREXIA (HUMAN GASTROINTESTINAL: NAUSEA OR VOMITING KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" | Nephron. Vol. 54, Pg. 53, 1990. |