方英石（CAS 14464-46-1）：分子式 O2Si、分子量 60.084。
| CAS号 | 14464-46-1 |
|---|---|
| 分子式 | O2Si |
| 分子量 | 60.084 |
| 熔点 | 3110 °F (NIOSH, 2024) |
| 沸点 | 4046 °F at 760 mmHg (NIOSH, 2024) |
方英石 是一种化工化合物，登记 CAS 号为 14464-46-1，分子式 O2Si（分子量 60.084）。
登记 CAS 号：14464-46-1
其分子式 O2Si 由 2 个氧、1 个硅 组成。
别名/同义词：方英石 · cristobalite
方英石 的 CAS 登记号为 14464-46-1。
分子式 O2Si，分子量 60.084。
别名/同义词：方英石、cristobalite。
方英石（CAS 14464-46-1）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 14464-46-1 |
|---|---|
| PubChem CID | 24261 |
| Molecular formula | O2Si |
| IUPAC name | dioxosilane |
| UNII (FDA) | ETJ7Z6XBU4 |
| Molecular Weight | 60.084 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 59.966755773 |
| Monoisotopic Mass | 59.966755773 |
| Topological Polar Surface Area | 34.1 |
| Heavy Atom Count | 3 |
| Boiling Point | 4046 °F at 760 mmHg (NIOSH, 2024) |
|---|---|
| Boiling Point | 4046 °F |
| Boiling Point | 2230 °C |
| Boiling Point | 2950 °C @760 [mm Hg] |
| Melting Point | 3110 °F (NIOSH, 2024) |
| Melting Point | 3110 °F |
| Melting Point | 1710 °C |
| Melting Point | 1716 - 1736 °C |
| Melting Point | 1713 °C |
| Melting Point | 1722 °C |
SILICON DIOXIDE; Silica; Dioxosilane; 7631-86-9; Silicic anhydride; Diatomaceous silica; Wessalon; Zorbax sil; Silica, amorphous; Silica, colloidal; Sillikolloid; Acticel; Carplex; Extrusil; Porasil; Santocel
| Regulatory & Food Contact | FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIOXIDANT, COLOR OR COLORING ADJUNCT, DRY FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS FDA Inventory of Effective Food Contact Substance (FCS) Noti: FCS ANTICAKING_AGENT: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIOXIDANT, COLOR OR COLORING ADJUNCT, DRYING AGENT, EMULSIFIER OR EMULS Use in a variety of foods and food-packing materials |
|---|---|
| GHS notification summary | 35% (889 / 2540) |
| GHS notification summary | 35% (889 / 2540) |
|---|---|
| Reported hazard statements | H315 (56.3%), H319 (56.3%), H335 (56.3%), H350 (12.6%), H372 (46%), H373 (29.4%), H341, H320 |
Reported as not meeting GHS hazard criteria by 7724 of 9127 companies
Aggregated GHS information provided per 9127 reports by companies from 60 notifications to the ECHA C&L Inventory.
cristobalite · CAS 14464-46-1 · O2Si. UNII ETJ7Z6XBU4. Boiling Point: 4046 °F at 760 mmHg (NIOSH, 2024); Boiling Point: 4046 °F; Boiling Point: 2230 °C.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: cristobalite