Quick Answer: The Laboratory Grade Sodium Metal in Kerosene is elemental sodium (Na), a water-reactive alkali metal kept under a protective medium, for staff-controlled demonstrations of Group 1 properties and metal reactivity.
Last updated: October 2026
Key Features
Symbol Na, CAS 7440-23-5
Atomic weight about 22.99 g/mol
Stored under a protective medium to keep out moisture
Contact with water gives sodium hydroxide, heat and flammable hydrogen gas
Restricted to trained staff, never open-access storage
Technical Specifications
Specification
Value
Chemical name
Sodium
Symbol
Na
CAS number
7440-23-5
Atomic weight
About 22.99 g/mol
About This Product
Sodium is used to teach Group 1 metals and why some chemicals need special storage. Before the container is opened, water, wet glassware, acids, oxidisers and alcohols are removed from the work area. Staff wear eye protection, gloves and a lab coat, take only the minimum quantity with completely dry tools, and keep the remaining sodium fully covered by the protective medium.
Frequently Asked Questions
Q1. Why is sodium metal kept under a protective medium? Contact with moisture or water produces sodium hydroxide, heat and flammable hydrogen gas. The protective medium keeps moisture away from the metal during storage.
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