Description
Specifications Table
Product Name – Sodium carbonate, 99.8%, for analysis, anhydrous, powder
Quantity/Pack Size – 1KG, 5KG
Form – Powder
Grade – For Analysis (ACS)
Application – Titration, pH adjustment, chemical synthesis
Product Overview
This sodium carbonate powder delivers 99.8% analytical-grade purity in an anhydrous form, eliminating moisture interference for consistent results. The fine, uniform particle size ensures rapid dissolution and precise stoichiometric reactions, making it indispensable for volumetric analysis and buffer preparation. Its high alkalinity (pH ~11 in solution) provides reliable neutralization capacity in acid-base titrations, while the absence of heavy metals and impurities guarantees minimal background interference in spectrophotometric assays. The powder’s free-flowing nature prevents caking during storage and allows accurate weighing for gravimetric applications. Packaged in airtight containers to maintain stability, this reagent meets ACS specifications for critical laboratory procedures where trace contaminants could compromise data integrity. The anhydrous formulation is particularly valuable for Karl Fischer titration and other moisture-sensitive protocols.
FAQs
1. What is the difference between anhydrous and hydrated sodium carbonate?
Anhydrous sodium carbonate contains no water molecules in its crystal structure, while hydrated forms like sodium carbonate decahydrate include bound water. This anhydrous version offers higher purity and is preferred for applications where moisture content must be precisely controlled.
2. Can this be used for preparing standard solutions?
Yes, the 99.8% purity and ACS grade certification make this sodium carbonate ideal for preparing primary standard solutions for acid-base titrations, as it maintains stable composition and accurate molar concentrations over time.
3. How should this be stored to maintain purity?
Store in a tightly sealed container in a cool, dry place away from acids and moisture. Exposure to humid air may cause absorption of CO₂ and water, potentially altering the reagent’s properties.
4. Is this compatible with glassware?
While sodium carbonate solutions are mildly alkaline, prolonged contact with glass at high concentrations or temperatures may cause etching. Rinse glassware promptly after use to prevent damage.
5. What alternatives exist for pH adjustment applications?
For less critical applications, sodium bicarbonate offers a milder alkaline option, while potassium carbonate provides similar basicity with higher solubility in organic solvents. However, neither matches the precision of this 99.8% pure anhydrous grade.
