Molekula
Florisil (100-200 mesh)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Florisil (100-200 mesh) is a magnesium silicate adsorbent used for sample cleanup and purification in analytical chemistry. It is commonly employed in chromatography and extraction processes to remove impurities. CAS: 1343-88-0, Molecular Formula: MgO3Si, Molecular Weight: 100.39, Storage: Ambient, Signal Word: None.
Molekula supplies Florisil (100-200 mesh) in 500 g packs, from £37.08 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Odorless, White powder |
| pH | 8.0-10.0 |
| Bulk density | 300-600 |
| Loss on Drying (105°C for 2 hours) | ≤20% |
| Silicon Dioxide (SiO2) | ≥67.0% |
| Magnesium Oxide (MgO) | ≥15.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Fine, white powder |
Source: PubChem CID 72941442 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90023743 |
| CAS Number | 1343-88-0 |
| IUPAC Name | magnesium;tris(oxygen(2-));silicon(4+) |
| EC Number | 215-681-1 |
| Molecular Formula | MgO3Si |
| Molecular Weight | 100.39 |
| Exact Mass | 99.9467 |
| SMILES | [O-2].[O-2].[O-2].[Mg+2].[Si+4] |
| InChIKey | ZADYMNAVLSWLEQ-UHFFFAOYSA-N |
| InChI | InChI=1S/Mg.3O.Si/q+2;3*-2;+4 |
| PubChem CID | 72941442 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2839905000 |
| Tariff Code | 2839900090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Ambosol
- Avibest
- Britesorb
- Gastomag
- Magmasil
- Magsorbent
- Naisuton
- Novasorb
- Salisil
- Silicic acid, magnesium salt
Frequently asked questions
What is Florisil (100-200 mesh) used for?
Florisil is primarily used as a solid-phase extraction adsorbent for purifying and separating organic compounds in environmental, pharmaceutical, and food analysis.
What is the chemical formula and molecular weight of Florisil?
The formula is MgO3Si with a molecular weight of 100.39 g/mol.
How should Florisil (100-200 mesh) be stored?
Store at ambient temperature, protected from moisture and contamination.
What grade of Florisil is available?
Florisil (100-200 mesh) is supplied to a specification of odorless white powder appearance, pH 8.0-10.0, bulk density 300-600, loss on drying (105°C for 2 hours) of ≤20%, silicon dioxide (SiO2) ≥67.0% and magnesium oxide (MgO) ≥15.0%.
Can Molekula supply Florisil in bulk?
Yes, Molekula can supply Florisil in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Florisil order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), with additional documentation available upon request.
Where can I buy Florisil (100-200 mesh)?
Directly from Molekula, which lists Florisil (100-200 mesh) in 500 g packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.