Hydrophobic
Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required.
Popular Products
Nano fumed silicaSolid Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):260m2/g;particle size:7-40nm;Deal with HMDSOut of Stock Item #: S104591View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Nano fumed silicaSolid Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):115m2/g;particle size:7-40nm;Deal with PDMSOut of Stock Item #: S104599View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Sand | Silica gel | KIESELGUHR | Aerosil | Cristobalite | Silica | Wessalon | Diatomaceous silica | Dioxosilane | Sil...
Silica,fumedCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. specific surface area(BET):150m2/gOut of Stock Item #: S124827View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Silica,fumedHydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. specific surface area(BET):300 m2/gOut of Stock Item #: S124829View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Silica,fumedSolid Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. specific surface area(BET):200 m2/gOut of Stock Item #: S124828View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Nano fumed silicaHydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):170m2/g;particle size:7-40nm;Deal with DimethylsiloxyOut of Stock Item #: S104589View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Nano fumed silicaCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):100m2/g;particle size:7-40nm;Deal with PDMSOut of Stock Item #: S104592View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Rose quartz | Silica aerogel | Zeofree 80 | Carplex | Extrusil | Aerosil 200 | Sand | Silica, amorphous | Syton 2X | ...
Nano fumed silicaCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):150 m2/g;particle size:7-40nm;Deal with HMDSOut of Stock Item #: S697170View ProductPricing & Pack SizesTechnical Identifiers
- IUPAC Name
- dioxosilane
- SMILES
- O=[Si]=O
- InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- InChI
- 1S/O2Si/c1-3-2
- Synonyms
- Silicon Dioxide | Silica
- Nano fumed silicaCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):140m2/g;particle size:7-40nm;Deal with HMDSOut of Stock Item #: N1375738View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- O=[Si]=O
- InChI
- 1S/O2Si/c1-3-2
- Nano fumed silicaCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):145m2/g;particle size:7-40nm;Deal with HMDSOut of Stock Item #: N1375740View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- O=[Si]=O
- InChI
- 1S/O2Si/c1-3-2
- Nano fumed silicaCAS: 112945-52-5 Formula: SiO2 Molecular Weight: 60.08Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):200m2/g;particle size:7-40nm;Deal with HMDSOut of Stock Item #: N1375742View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- O=[Si]=O
- InChI
- 1S/O2Si/c1-3-2
Silane, dichlorodimethyl-, reaction products with silicaCAS: 68611-44-9 EC Number: 271-893-4 PubChem CID: 156594508 Formula: C2H6Cl2O2Si2 Molecular Weight: 189.14Solid Hydrophobic ? Hydrophobic grade — water-repelling character suited to non-aqueous/organic phases. Use when water exclusion or organic-phase behavior is required. ≥99.8% metals basis specific surface area(BET):90 - 130 m²/gOut of Stock Item #: A1508858View ProductPricing & Pack SizesTechnical Identifiers
Frequently Asked Questions — Hydrophobic
What does Hydrophobic mean?
Hydrophobic is a defined analytical purity tier suitable for workflows requiring a specific validated property. It specifies a minimum assay percentage, controlled limits on common impurities (water, heavy metals, residue on ignition), and lot-to-lot consistency. Hydrophobic is one of several purity tiers — choose based on the sensitivity and regulatory requirements of your method.
When should I choose Hydrophobic over a higher tier?
Choose Hydrophobic for routine analytical work where the method tolerates the stated impurity limits. Move up to HPLC grade, UltraPureChrom™, or a pharmacopoeia grade (USP, BP, JP, ChP, Ph.Eur.) when your method demands tighter UV absorbance, trace metal limits, or regulated compendial documentation.
Is Hydrophobic suitable for use as an HPLC mobile phase?
Not by default. Standard analytical purity tiers do not always meet UV absorbance and fluorescence specifications needed for HPLC. For chromatography, choose HPLC grade, HPLC Gradient Grade, or for HPLC plus. For LC-MS work, choose for LC-MS or for UHPLC-MS.
Does Hydrophobic include a Certificate of Analysis?
Yes. Every lot of an analytical-grade reagent ships with a Certificate of Analysis listing tested specifications. SDS and additional documentation are available on the product page or by request.
What pack sizes are available?
Solid reagents are typically offered in 25 g, 100 g, 500 g and 1 kg units; liquids in 500 mL, 1 L, 2.5 L and 4 L. Bulk and custom packaging are available through the Bulk & Custom Quote workflow.