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Description
SD Super Fine™ (TCI D5792) is metallic sodium supplied as a 25 wt% dispersion in mineral oil. Sodium metal is an extremely powerful reducing agent and a very strong base, but in bulk solid form it is difficult to handle and offers only a small reactive surface area. By dispersing the sodium into very fine particles within mineral oil, this product provides a far greater reactive surface area together with physical protection from air and moisture. In the laboratory, this format makes measuring and dispensing easier and delivers more consistent reaction rates than conventional cut pieces of sodium.
The key characteristics that lead chemists to choose the dispersion form are more controlled and more reproducible reactivity. The fine particles react faster and more uniformly, so reduction and deprotonation reactions can proceed at lower temperatures and in shorter reaction times. The mineral oil layer acts as a protective medium that inhibits direct contact with atmospheric oxygen and humidity during storage and material transfer. Even so, the fundamental nature of sodium still applies: it reacts violently with water to generate hydrogen gas and heat, so all handling must be planned accordingly.
In Indonesian laboratories, this material is typically used in synthetic organic chemistry, catalysis, and inorganic chemistry work where a strong reducing agent or a strong base is required. It suits academic research groups, university teaching laboratories with adequate facilities, and industrial R&D units that carry out reduction or condensation reactions. The dispersion format is particularly helpful in local conditions, where high ambient humidity makes conventional sodium pieces harder to keep in good condition.
Laboratory Applications
Metal-mediated reduction reactions: the fine sodium particles present a large reactive surface, allowing reductions to reach completion at lower temperatures and in shorter times than bulk sodium.
Deprotonation and generation of sodium salts: as a very strong base, the dispersed sodium reacts uniformly with acidic substrates, giving reproducible conversion from batch to batch.
Condensation and coupling reactions in synthetic organic chemistry: consistent reaction rates from the fine dispersion make reaction profiles easier to control and to reproduce.
Preparation of main-group and inorganic reagents: sodium serves as the electron source for generating reactive intermediates, and the dispersion form simplifies stoichiometric dosing.
Method development and small-scale process screening: the easily measured dispersion lets researchers vary sodium loading precisely while keeping the material protected from air and moisture.
Specifications
Brand: TCI
CAS number: 7440-23-5
Category: Chemistry > Catalysis and Inorganic Chemistry > Main-group Elements [Catalysis and Inorganic Chemistry]
Product code: D5792
Physical form: sodium metal as a 25 wt% dispersion of very fine particles in mineral oil
Pack sizes: please refer to the packaging options listed for this product
Storage: keep tightly closed and protected from air and moisture
Handling and Storage
Store the container tightly closed in a cool, dry, well-ventilated area, kept well away from water, aqueous solutions, and any source of moisture. Keep the sodium covered by its mineral oil at all times and use the original container or another closed, moisture-resistant vessel intended for water-reactive materials. Handle only in a fume hood or under an inert atmosphere, using dry glassware and dry solvents, and wear appropriate eye protection, gloves, and a laboratory coat. Because sodium reacts violently with water to release hydrogen gas and heat, avoid contact with water and keep suitable fire-fighting provisions for water-reactive metals nearby. Residues and quench operations should be managed according to your institution's procedures for reactive metal waste, and containers should be resealed promptly after every transfer.
