Calcium Chloride Dihydrate Extra Pure
$ 18.00 Original price was: $ 18.00.$ 17.82Current price is: $ 17.82.
Calcium Chloride Dihydrate Extra Pure is a high-purity, white crystalline compound with the chemical formula CaCl₂·2H₂O. It is highly soluble in water and hygroscopic, making it effective as a drying agent, desiccant, and moisture absorber. This extra pure grade is suitable for laboratory use, analytical applications, and precise chemical processes where high-quality reagents are essential. It is also used in buffer solutions, preparation of calcium salts, and various industrial and environmental applications requiring controlled calcium ion concentrations.
Calcium Chloride Dihydrate Extra Pure
Primary Uses
- Drying Agent / Desiccant
- Used to absorb moisture from gases or organic solvents in drying tubes, desiccators, and sample preservation.
- Preferred in cases where mild hygroscopic action is required without strong exothermic reactions.
- Source of Calcium Ions in Reactions
- Provides Ca²⁺ ions in qualitative and quantitative chemical analysis, often in double displacement reactions, flame tests, or ionic precipitation studies.
- Electrolyte in Laboratory-Scale Experiments
- Utilized in electrochemical cells or conductivity studies where calcium ions are needed.
- Osmotic Agent in Molecular Biology
- Sometimes used in bacterial transformation protocols to increase cell membrane permeability in CaCl₂-competent cell preparation.
Secondary Uses
- Freezing Point Depression Studies
- Used in colligative property experiments to demonstrate depression of freezing point and understand solute effects in solutions.
- Heat Generation Demonstrations
- Dissolution in water is exothermic, useful for energy change (enthalpy) experiments or to demonstrate solvation heat release.
- Precipitation Reactions in Teaching Labs
- Reacted with sodium carbonate or oxalate to form precipitates (e.g., CaCO₃ or CaC₂O₄), common in qualitative analysis training.
1. Basic Identification Attributes
- Chemical Name: Calcium Chloride Dihydrate
- Chemical Formula: CaCl₂·2H₂O
- CAS Number: 10035-04-8
- HS Code: 2827.20.00
- Grade: Extra Pure (Laboratory Grade)
- Synonyms: Calcium dichloride dihydrate, CaCl₂·2H₂O
2. Physical & Chemical Properties
- Appearance: White, crystalline solid or granules
- Odor: Odorless
- Molar Mass: 147.01 g/mol
- Melting Point: 176 °C (decomposes upon further heating)
- Solubility:
- Highly soluble in water
- Soluble in ethanol and methanol
- Density: ~1.85 g/cm³
- Hygroscopic: Yes – absorbs moisture from air rapidly
- Stability: Stable under recommended conditions
3. Safety & Hazard Attributes
- GHS Classification: Eye Irritation (Category 2A)
- Hazard Statements:
- H319: Causes serious eye irritation
- Precautionary Statements:
- Wear protective gloves/eye protection
- Wash hands thoroughly after handling
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
4. Storage & Handling Attributes
- Storage Conditions:
- Keep container tightly sealed
- Store in a cool, dry, well-ventilated place
- Use desiccators if long-term dryness is critical
- Packaging: HDPE containers, moisture-proof plastic bottles
- Handling Precautions:
- Avoid contact with eyes and prolonged skin exposure
- Use PPE in lab-scale handling
5. Regulatory & Compliance Attributes
- Transport Classification (UN): Not regulated
- Disposal:
- Dispose as non-hazardous inorganic waste
- Follow local environmental disposal guidelines
6. Environmental & Health Impact
- Toxicity:
- Low toxicity at lab-scale exposure levels
- May irritate skin and eyes in concentrated form
- Ecotoxicity:
- Can raise salinity in aquatic systems if released in large quantities
- Biodegradability: Not applicable – inorganic salt
SAFETY PRECAUTIONS
- Personal Protective Equipment (PPE):
- Wear safety goggles, gloves, lab coat, and dust mask if powder is handled.
- Handling:
- Avoid contact with skin, eyes, and clothing.
- Handle with care as it is hygroscopic (absorbs moisture).
- Do not breathe dust.
- Storage:
- Store in a tightly sealed container.
- Keep in a cool, dry, well-ventilated area away from incompatible materials like strong acids.
- Incompatibilities:
- Strong acids, borates, and silver salts.
FIRST AID MEASURES
- Inhalation:
- Move to fresh air.
- Seek medical attention if irritation persists.
- Skin Contact:
- Wash thoroughly with water and soap.
- Remove contaminated clothing.
- Eye Contact:
- Flush with plenty of water for at least 15 minutes.
- Seek medical help if irritation continues.
- Ingestion:
- Rinse mouth.
- Give water to dilute.
- Do not induce vomiting. Seek medical advice.
FIRE FIGHTING MEASURES
- Flammability:
- Not flammable.
- Extinguishing Media:
- Use suitable media for surrounding fire (e.g., water spray, dry chemical, foam).
- Hazardous Decomposition Products:
- May emit chloride fumes or calcium oxide at high temperatures.
- Firefighting Instructions:
- Wear protective equipment and SCBA in case of heavy smoke.
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