Rankem Sodium Hydroxide Pellets
Rankem Sodium Hydroxide Pellets
Rankem® Sodium Hydroxide Pellets are high-purity chemical reagents manufactured by Rankem, a brand under Avantor. They are produced in various grades to suit different laboratory and industrial applications, ranging from routine analysis to advanced research .
Key Properties and Specifications
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Chemical Identity: Sodium hydroxide (NaOH), with a CAS number 1310-73-2 and molecular weight of approximately 40 g/mol .
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Physical Form: White, deliquescent pellets that are freely soluble in water, forming a strongly alkaline solution .
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Purity Grades:
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Analytical Reagent (AR) / ACS Grade: This is the premium grade, with a minimum assay of ≥98.0% . It has low impurity limits, tested for heavy metals and other specific contaminants like silicates and phosphates, making it suitable for advanced chemical testing and analytical procedures .
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Laboratory Reagent (LR) Grade: This is a general-purpose grade for routine laboratory use and classical analysis, with a minimum assay of ≥97.0% .
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Specifications: The product meets or exceeds ACS reagent specifications, ensuring batch-to-batch consistency . A summary of typical specifications can be found in the table below:
| Parameter | AR/ACS Grade Specification | LR Grade Specification |
|---|---|---|
| Assay (NaOH) | ≥ 98.00% | ≥ 97.00% |
| Carbonate (Na₂CO₃) | ≤ 1.00% | ≤ 1.50% |
| Chloride (Cl) | ≤ 0.005% | ≤ 0.01% |
| Sulphate (SO₄) | ≤ 0.003% | ≤ 0.01% |
| Heavy Metals (as Pb) | ≤ 0.0005% | ≤ 0.001% |
| Iron (Fe) | ≤ 0.0005% | ≤ 0.005% |
Applications
Rankem sodium hydroxide pellets are widely used as a base in laboratories. Its applications include use in routine analysis, preparation of standard solutions, and as a key reagent in various chemical syntheses and research applications .
Safety and Handling
Sodium hydroxide is a corrosive substance that requires careful handling. Key safety points include:
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Hazards: It is classified as a dangerous substance. It causes severe skin burns and eye damage . Inhalation or ingestion can cause severe respiratory tract burns and damage to the digestive tract .
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Reactivity: It reacts violently with acids and can attack metals like aluminum, tin, and zinc, releasing flammable hydrogen gas . It also absorbs carbon dioxide and moisture from the air .
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Personal Protective Equipment (PPE): When handling, always wear appropriate PPE, including tightly fitting safety goggles, a face shield, and gloves .
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Storage: Store in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible materials like acids and metals
- In stock: Yes
