Description
Specifications Table
Product Name – Calcium carbonate, 99.999%, (trace metal basis)
Quantity/Pack Size – 5GR, 25GR
Form – Powder
Grade – 99.999% (trace metal basis)
Application – Analytical, research, high-precision lab use
Product Overview
Calcium carbonate of 99.999% purity (trace metal basis) is an ultra-high-grade reagent designed for applications demanding minimal metallic contamination. This fine, white powder is meticulously processed to eliminate impurities, ensuring reliable results in sensitive analytical procedures. Its high purity makes it ideal for use in advanced research, where trace metal interference can compromise data integrity. The product is chemically stable under standard lab conditions, offering consistent performance in reactions requiring precise stoichiometry. Its fine particle size ensures rapid dissolution and homogeneous mixing in aqueous and organic solvents. Unlike lower-grade alternatives, this calcium carbonate undergoes rigorous quality control to meet strict trace metal specifications, making it a preferred choice for laboratories prioritizing accuracy. The product is packaged in airtight containers to prevent moisture absorption and contamination, preserving its purity until use. Whether used as a reagent, standard, or buffer component, its exceptional purity guarantees reproducibility in critical experiments.
FAQs
1. What is the significance of “trace metal basis” in this calcium carbonate?
The “trace metal basis” indicates that this calcium carbonate is analyzed and certified for ultra-low levels of metallic impurities, typically below parts-per-million (ppm) thresholds. This specification is critical for applications where even minute metal contamination could skew results, such as in atomic absorption spectroscopy or semiconductor manufacturing.
2. Can this product be used in food or pharmaceutical applications?
While this calcium carbonate meets high chemical purity standards, it is not certified as food-grade or pharmaceutical-grade. For edible or medicinal use, specialized grades compliant with USP/EP/JP standards are required, which include additional testing for biological contaminants and regulatory approvals.
3. How should this calcium carbonate be stored to maintain its purity?
Store the product in its original, tightly sealed container at room temperature (15–25°C) in a dry, well-ventilated area. Avoid exposure to humidity or acidic vapors, as these can degrade the powder or introduce contaminants. For long-term storage, consider using a desiccant in the storage area.
4. Is this calcium carbonate compatible with organic solvents?
Calcium carbonate is generally insoluble in organic solvents like ethanol, acetone, or hexane. However, it may react with acidic solvents (e.g., acetic acid) to form soluble calcium salts. For specific solubility data, refer to the Safety Data Sheet (SDS) or conduct a small-scale compatibility test prior to use.
5. What alternatives exist if I need a lower-purity calcium carbonate?
For applications where ultra-high purity is not critical, consider reagent-grade (99.0–99.5%) or technical-grade (95–98%) calcium carbonate. These are cost-effective options for routine lab tasks like pH adjustment or precipitation reactions, though they may contain higher levels of impurities like magnesium, iron, or silica.
