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Aluminium Potassium Sulphate Hydrated Extra Pure
Original price was: $ 19.00.$ 18.74Current price is: $ 18.74.
Aluminium Potassium Sulphate Hydrated Extra Pure, commonly known as potash alum, is a high-purity, colorless to white crystalline compound containing water of crystallization. It is widely used in laboratory settings for analytical chemistry, especially in the preparation of standard solutions, precipitation reactions, and as a source of aluminum ions. Its astringent and antiseptic properties also make it useful in biochemical and pharmaceutical experiments. The hydrated form offers improved handling and solubility in water, which supports its use in buffer systems and crystal growth studies. With minimal impurities, the extra pure grade ensures consistent and reliable results in sensitive research applications. It should be stored in a dry, cool environment in well-sealed containers to preserve its quality and prevent moisture loss.
Aluminium Potassium Sulphate Hydrated Extra Pure
Primary Uses
- Reagent in Qualitative Inorganic Analysis
- Used to identify hydroxide and sulfate reactions; ideal for testing amphoteric behavior of aluminum salts.
- Educational Demonstrations in Crystallization
- Classic material for growing large, clear single crystals; used in teaching crystallography and solubility.
- Preparation of Other Aluminium Compounds
- Source of aluminum ions in synthesis of aluminum hydroxide, aluminum oxide, or other lab reagents.
- Buffering Agent in Lab-Scale Formulations
- Helps maintain mildly acidic pH in specific analytical or biological tests.
- Fixative and Mordant in Histology and Microscopy
- Used in preparing biological samples for staining and as a mordant in dye-binding studies.
Secondary Uses
- Flocculation Studies in Environmental Chemistry
- Simulates coagulation behavior in lab-scale water and wastewater treatment models.
- Ionic Conductivity and Electrolyte Studies
- Serves as a stable ionic compound for demonstrating conductivity in aqueous systems.
- Food Chemistry and Additive Testing (Research Only)
- Studied in lab environments for its behavior as a preservative or firming agent in food testing.
- Antimicrobial Testing and Antiperspirant Research
- Evaluated in lab-based screening of antimicrobial and astringent effects on biological samples.
- Teaching Reactions of Double Salts
- Demonstrates thermal decomposition, hydration/dehydration, and dual-ion behavior in classroom labs.
| PACK SIZE | 500 grams Plastic Tin |
|---|
1. Basic Identification Attributes
- Chemical Name: Aluminium Potassium Sulphate Dodecahydrate
- CAS Number: 10043-67-1
- HS Code: 28333000 (Alums)
- Molecular Formula: KAl(SO₄)₂·12H₂O
- Synonyms:
- Potassium alum
- Potash alum
- Alum
- Kalinite
- Aluminium potassium sulfate dodecahydrate
2. Physical & Chemical Properties
- Physical State: Solid (crystalline powder or transparent crystals)
- Color & Odor: Colorless or white; odorless
- Boiling Point: Decomposes before boiling
- Melting Point: ~92.5°C (loses water of crystallization)
- Density/Specific Gravity: ~1.75 g/cm³
- Solubility:
- Water: Soluble (~15 g/100 mL at 20°C)
- Alcohol: Insoluble
- pH Level: ~3.0–4.5 (in 5% aqueous solution)
- Vapor Pressure: Negligible
- Flash Point: Not flammable
- Autoignition Temperature: Not applicable
- Viscosity: Not applicable (solid)
3. Safety & Hazard Attributes
- Hazard Class (GHS):
- Eye Irritation (Category 2)
- Skin Irritation (Category 2)
- Not classified as hazardous in most lab scenarios
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- No specific OSHA or ACGIH limits
- Use general nuisance dust guidelines
- Reactivity:
- Stable under normal conditions
- Incompatible with strong bases (may release ammonia or aluminium hydroxide)
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry place
- Avoid exposure to moisture (hygroscopic)
- Incompatible Materials:
- Strong bases, reducing agents
- Container Type:
- Glass or plastic containers with tight seals
- Shelf Life & Expiration Date:
- Stable for several years if stored dry and sealed
- Special Handling Requirements:
- Use gloves and eye protection
- Avoid inhalation of dust; use fume hood if necessary
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Listed in TSCA, REACH
- Widely accepted in academic and industrial laboratory settings
- Transportation Restrictions:
- Not regulated for transport
- Waste Disposal Method:
- Dilute with water and neutralize if needed
- Dispose of according to local and institutional non-hazardous waste guidelines
6. Environmental & Health Impact
- Ecotoxicity:
- Low toxicity; moderately harmful to aquatic life in high concentrations
- Persistence in Environment:
- Dissociates into potassium, aluminium, and sulfate ions; not persistent
- Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
- Biodegradability:
- Inorganic; not biodegradable, but breaks down into environmentally manageable ions
SAFETY PRECAUTIONS
- Personal Protective Equipment (PPE):
- Wear a lab coat, safety goggles, and chemical-resistant gloves (e.g., nitrile).
- Use a dust mask or operate under a fume hood if powder becomes airborne.
- Handling:
- Handle with care to avoid dust generation.
- Avoid contact with eyes, skin, and clothing.
- Use in a well-ventilated laboratory or under a fume hood.
- Avoid mixing with strong bases or reactive metals.
- Storage:
- Store in a tightly sealed, moisture-proof container in a cool, dry, and well-ventilated area.
- Keep away from strong oxidizers and bases.
- Label container clearly and prevent contamination.
- Hygiene Measures:
- Wash hands and face thoroughly after handling.
- Avoid touching face or eyes while handling.
- Do not eat, drink, or apply cosmetics in laboratory areas.
FIRST AID MEASURES
- Inhalation:
- Move person to fresh air.
- Rinse mouth and nose with water if dust was inhaled.
- Seek medical attention if irritation or breathing discomfort occurs.
- Skin Contact:
- Rinse skin thoroughly with soap and water.
- Remove contaminated clothing.
- Seek medical advice if irritation develops.
- Eye Contact:
- Flush eyes with plenty of clean water for at least 15 minutes.
- Lift eyelids occasionally while rinsing.
- Seek medical attention if irritation persists.
- Ingestion:
- Rinse mouth with water.
- Give water to dilute if the person is conscious.
- Do not induce vomiting.
- Seek medical attention, especially if large amounts are ingested.
FIRE FIGHTING MEASURES
- Suitable Extinguishing Media:
- Use water spray, dry chemical powder, carbon dioxide (CO₂), or foam.
- Specific Hazards:
- Non-flammable, but may release sulfur oxides and potassium/aluminum oxides upon thermal decomposition.
- Can contribute to corrosive runoff when heated in a fire.
- Protective Equipment for Firefighters:
- Wear self-contained breathing apparatus (SCBA) and full protective gear.
- Firefighting Instructions:
- Contain runoff to prevent environmental contamination.
- Cool fire-exposed containers with water spray.
- Avoid inhaling dust or thermal decomposition products.
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