Silicon dioxide (CAS 7631-86-9) — formula SiO2, molecular weight 60.08 g/mol; category fine chemicals.
Silicon dioxide (CAS 7631-86-9) is a chemical raw material in the fine chemicals category. Its molecular formula SiO2 comprises 1 Si, 2 O atoms. Its molecular weight is about 60.08 g/mol. Reported physicochemical data: melting point around 3110 °F (NIOSH, 2024), boiling point around 4046 °F at 760 mmHg (NIOSH, 2024). As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 7631-86-9 |
|---|---|
| Molecular Formula | SiO2 |
| Molecular Weight | 60.08 g/mol |
| Melting Point | 3110 °F (NIOSH, 2024) |
| Boiling Point | 4046 °F at 760 mmHg (NIOSH, 2024) |
| Packaging | 25/50kg woven bags, 20/25/50kg fibre drums, 200kg plastic drums, 1000kg IBC (subject to order confirmation) |
| Applications | 典型应用领域：精细化工。规格/纯度：以批次 COA 为准。包装：25/50kg 编织袋, 20/25/50kg 纸板桶, 200kg 塑料桶, 1000kg IBC（以订单确认为准）。储存：阴凉干燥, 密封保存, 开封后尽快使用。样品 10~100g 或 100~500g |
| Category | Fine Chemicals |
Documented applications: 典型应用领域：精细化工。规格/纯度：以批次 COA 为准。包装：25/50kg 编织袋, 20/25/50kg 纸板桶, 200kg 塑料桶, 1000kg IBC（以订单确认为准）。储存：阴凉干燥, 密封保存, 开封后尽快使用。样品 10~100g 或 100~500g.
Silicon dioxide is a high-value fine compound with CAS registry number 7631-86-9 and molecular formula SiO2 (molecular weight 60.08 g/mol), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 7631-86-9
Its molecular formula SiO2 comprises 1 Si, 2 O atoms.
Also known as: Silicon dioxide · Silica
Category: fine chemicals
The CAS registry number of Silicon dioxide is 7631-86-9.
Molecular formula SiO2, molecular weight 60.08 g/mol.
It is also registered under: Silicon dioxide, Silica.
Recorded applications: 典型应用领域：精细化工。规格/纯度：以批次 COA 为准。包装：25/50kg 编织袋, 20/25/50kg 纸板桶, 200kg 塑料桶, 1000kg IBC（以订单确认为准）。储存：阴凉干燥, 密封保存, 开封后尽快使用。样品 10~100g 或 100~500g.
Category: Fine Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Silicon dioxide (CAS 7631-86-9), compiled from public chemistry databases.
| CAS Number | 7631-86-9 |
|---|---|
| PubChem CID | 24261 |
| Molecular Formula | SiO2 |
| Molecular Weight | 60.08 g/mol |
| IUPAC Name | dioxosilane |
| InChIKey | VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
| 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
| GHS notifications | 35% (889 / 2540) |
|---|
| GHS notifications | 35% (889 / 2540) |
|---|---|
| Notified hazard statements | H315 (56.3%), H319 (56.3%), H335 (56.3%), H350 (12.6%), H372 (46%), H373 (29.4%), H341, H320 |
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: Silicon dioxide