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Sodium Carbonate
Pure
Laboratory grade
1. PRODUCT IDENTIFICATION
Product Name: Sodium Carbonate Anhydrous
Chemical Formula: Na₂CO₃
Molecular Weight: 105.99 g/mol
CAS Number: 497-19-8
HS Code: 2836.20
Grade: Laboratory Grade
Appearance: White, odorless crystalline powder
2. CHEMICAL CLASSIFICATION
Chemical Family: Inorganic Salt (Carbonate)
Synonyms:
Soda Ash
Disodium Carbonate
Calcined Soda
3. COMPOSITION / SPECIFICATION
Parameter Specification
Assay (Na₂CO₃) ≥ 99.5%
Insoluble Matter ≤ 0.02%
Chloride (Cl⁻) ≤ 0.01%
Sulfate (SO₄²⁻) ≤ 0.02%
Iron (Fe) ≤ 0.001%
Loss on Drying ≤ 0.5%
4. APPLICATIONS
Buffer preparation (alkaline systems)
pH adjustment in analytical chemistry
Glass manufacturing and ceramics
Water treatment processes
Detergent and cleaning formulations
Titrimetric standardization (acid-base titrations)
5. FUNCTIONAL ROLE IN LABORATORY USE
Acts as a strong alkaline agent
Used in carbonate/bicarbonate buffer systems
Serves as a primary standard (after drying) in volumetric analysis
6. SOLUBILITY & PROPERTIES
Solubility: Highly soluble in water
pH (1% solution): ~11–12
Hygroscopicity: Moderately hygroscopic
Thermal Stability: Stable under normal conditions
7. HANDLING & STORAGE
Store in tightly closed container
Keep in a cool, dry, well-ventilated area
Protect from moisture (absorbs CO₂ and water)
Avoid prolonged exposure to air
8. SAFETY INFORMATION
Hazard Class: Irritant
Risks:
Causes eye irritation
May irritate skin and respiratory tract
Precautions:
Use gloves and eye protection
Avoid inhalation of dust
Wash thoroughly after handling
First Aid:
Eyes: Rinse immediately with water
Skin: Wash with soap and water
Inhalation: Move to fresh air.
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