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Aldrich
Sodium silica gel Stage II
660175
DOWNLOAD MSDS (PDF)Synonym: Na-SG-II
MDL number: MFCD01941718
Properties
| Related Categories | Alkali Metals, Alkali Silica Gels, Greener Alternatives and Technologies, Greener Alternatives: Reagents, Reduction, |
| autoignition temp. | 248-257 °F |
| extent of labeling | ~35 wt. % Na-K loading |
| density | 0.7 g/mL at 25 °C |
Description
Frequently Asked Questions
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Packaging
5, 25 g in glass btl
Application
Alkali Metal Silica Gels from SiGNa
Mild reducing agent capable of reducing alcohols, useful for drying and purifying organic solvents, producing hydrogen from water for hydrogenation chemistry.
Alternative to other reagents for desulfurizations, dehalogenations(as Wurtz coupling reactions), and Birch reductions.
Additionally can be used as:
• A reducing agent for aliphatic ester substrates
A deprotectant in place of the typical heavy metal deprotectant
Price and Availability
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Safety Information
| Symbol |   GHS02, GHS05 |
| Signal word | Danger |
| Hazard statements | H261-H314 |
| Precautionary statements | P231 + P232-P280-P305 + P351 + P338-P310-P422 |
| Supplemental Hazard Statements | Reacts violently with water. |
| Personal Protective Equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
| Hazard Codes | F,C |
| Risk Statements | 11-15-34 |
| Safety Statements | 26-36/37/39-43-45 |
| RIDADR | UN 2813 4.3/PG 2 |
| WGK Germany | 1 |
Technical information & documentation associated with this product is available in the Safety & Documentation tab.
Articles
Alkali Silica Gels
Alkali metals have long been used in synthetic chemistry as reducing agents, but their pyrophoric nature has often prevented their use in larger-scale reactions. Alkali metals react violently with wa...
ChemFiles Volume 5 Article 9
Keywords: Birch Reduction, Coupling reactions, Reductions, Solvents, Wurtz reaction
Related Content
Alkali Metal Silica Gels from SiGNa: Powerful Reducing Agents
Alkali metals have long been used in synthetic chemistry as reducing agents, but their pyrophoric nature has often prevented their use in larger-scale reactions. Alkali metals react violently with wa...
References
Dye, J. L. et al J. Am. Chem. Soc. 127, 9339, (2005)
P. F. Vogt and B. Bodnar, Spec. Chem. 29, 22-24, (2009)
P. Nandi, et al., Tetrahedron Lett. 50, 3864-3866, (2009)
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