Silicon dioxide
Also known as: EINECS 231-545-4, LICHROSORB SI 100 (10 MYM) 10 G, LICHROSORB SI 100 (10 MYM) 100 G, MFCD00148343, SEA SAND EXTRA PURE 25 KG, SEA SAND EXTRA PURE 5 KG, SILICA GEL 60 GF254 FOR THIN-LAYER CHROM, SILICA GEL 60 PF254 + 366 FOR PREPARATIV, SILICA GEL 60 PF254 FOR PREPARATIVE LAYE, TLC-SILICA GEL 60 GF254 MEAN PARTICLE SI, silicon dioxide
Silicon dioxide (CAS 7631-86-9) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula O2Si and a molecular weight of 60.084 g/mol. Key properties include a melting point of 1610ºC, a boiling point of >100ºC(lit.), a density of 2.6 and a flash point of n/a. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Nov 3, 2026.
- CAS No.
- 7631-86-9
- Jingsj CID
- J-926271-7
- Molecular Formula
- O2Si
- Molecular Weight
- 60.084 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99.9% 500g | - | - | CN China MOQ 500g | |
Made to Order | 99.9% 1kg | - | - | CN China MOQ 1kg | |
Made to Order | 99.9% 25kg | - | - | CN China MOQ 25kg |
Physicochemical Properties
| Melting Point | 1610ºC |
|---|---|
| Boiling Point | >100ºC(lit.) |
| Density | 2.6 |
| Flash Point | n/a |
| Exact Mass | 59.966755 |
| PSA | 34.14000 |
| Refractive Index | 1.46 |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 3802900090 |
|---|
Frequently Asked Questions
What is the CAS number of Silicon dioxide?
The CAS number of Silicon dioxide is 7631-86-9.
What are the molecular formula and molecular weight of Silicon dioxide?
Silicon dioxide has molecular formula O2Si and molecular weight 60.084 g/mol.
Which suppliers offer Silicon dioxide?
1 supplier(s) listed; request a quote for pricing.
Is Silicon dioxide hazardous?
Silicon dioxide has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Silicon dioxide?
For Silicon dioxide, Downstream Products: 5-Fluoro-2-nitrophenol, Triacetin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Silicon dioxide (CAS 7631-86-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-926271-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.