Sigma-Aldrich 无水碳酸钠，ACS试剂，无水，≥99.5%，粉末或颗粒

产品概述

碳酸钠（无水），以≥99.9%的痕量金属为纯度，是白色粉末/晶体，性质强吸湿。它通常被称为纯碱或煅烧纯碱。它被广泛应用于各个行业，包括玻璃制造、化学合成、洗涤剂和水处理。碳酸钠在高温下具有热稳定性，因此适用于需要耐热的应用，如陶瓷和玻璃生产。该化合物溶于水时呈碱性，这使其能够在各种生化和分析应用中作为缓冲剂，帮助维持稳定的pH值。

应用领域

Sodium carbonate is a key ingredient in the production of glass and ceramics. In research settings, it is used to formulate glass compositions and study the effects of different additives on glass properties, such as thermal expansion and chemical durability.Recent studies have explored the use of sodium carbonate in the production of sodium-ion batteries. Its role in the synthesis of sodium-based materials for energy storage applications highlights its significance in the development of sustainable energy solutions. In a recent study, Na₂CO₃ was added to the composite positive electrode of P2−Na₂/₃Fe₁/₂Mn₁/₂O₂ as a sacrificial salt, providing Na⁺ through the electrochemical oxidative decomposition of Na₂CO₃ during the initial charging process.[2] In materials science, sodium carbonate is utilized in the synthesis of various inorganic compounds, including metal carbonates and oxides. Its high purity is essential for producing compounds with consistent properties, which are critical for research in catalysis and materials development. For example,Na₂CO₃ and NaHCO₃ act as heterogeneous catalysts in biodiesel production. Sodium Carbonate (anhydrous) is a versatile reagent widely employed in organic synthesis. It acts as a catalyst in aldol condensation for the preparation of chalcone and azachalcone, serves as a base in Pd-catalyzed Suzuki coupling, and is equally effective in transition metal-free Suzuki reactions, enabling the formation of valuable biaryl compounds in aqueous systems with TBAB as a phase-transfer catalyst.

生化/生理作用

缓冲液成分，可用于去除外周膜蛋白。

产品特点

(>99.9% 微量金属基础) 确保反应清洁，污染最小。低水分含量增强了在敏感催化过程中稳定性和可靠性。由于杂质含量低，支持高产率合成（在水基体系中高效表现，符合绿色化学实践）。

技术规格