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Potassium Sulphate Extra Pure
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Potassium Sulphate Extra Pure is a premium-grade inorganic salt widely used in laboratories and industrial research. It serves as a reliable source of both potassium and sulfur, making it essential in analytical chemistry, fertilizer testing, and solution preparation. Its high solubility and chemical stability allow it to be used in qualitative and quantitative analysis, as well as in preparing culture media. The extra pure quality ensures that it contains minimal contaminants, providing consistent performance in sensitive experimental procedures, including high-purity formulations and calibration standards.
Description
Potassium Sulphate Extra Pure
PRIMARY USES
- Agricultural Fertilizer (Lab/Analytical Grade)
- Provides essential potassium (K) and sulfur (S) for plant nutrition.
- Preferred where chloride-sensitive crops are involved (e.g., tobacco, fruits, vegetables).
- Useful in controlled lab trials simulating field conditions.
- Analytical Chemistry
- Used in standard solution preparations for potassium analysis.
- Serves as a source of potassium ions in various lab experiments.
- Pharmaceutical Applications
- Acts as an inert ingredient or excipient in certain formulations.
- May be used in buffer preparations or stability testing.
SECONDARY USES
- Industrial Manufacturing
- Employed in the production of glass, detergents, and certain dyes.
- Occasionally used in specialty ceramic processes.
- Food Industry (Limited Use)
- Can function as a processing aid or nutrient in food fermentation or yeast culture media.
- Education & Research
- Ideal for chemistry demonstrations on salt solubility, ionic bonding, and crystal structure.
- Suitable for use in titrations and reagent formulations.
PRODUCT KEY FEATURES
1. Basic Identification Attributes
- Chemical Name: Potassium Sulfate
- CAS Number: 7778-80-5
- HS Code: 2833.29.00
- Molecular Formula: Kâ‚‚SOâ‚„
- Synonyms:
- Dipotassium sulfate
- Sulfuric acid dipotassium salt
- Arcanite
2. Physical & Chemical Properties
- Physical State: Solid (powder or crystalline granules)
- Color & Odor: White; odorless
- Boiling Point & Melting Point:
- Melting Point: ~1,069 °C
- Boiling Point: Decomposes before boiling
- Density/Specific Gravity: ~2.66 g/cm³
- Solubility:
- Water: Soluble (~12 g/100 mL at 20 °C)
- Insoluble in ethanol and organic solvents
- pH Level: ~5.5–8.5 (5% aqueous solution)
- Vapor Pressure & Volatility: Negligible vapor pressure
- Flash Point: Not applicable (non-flammable)
- Autoignition Temperature: Not applicable
- Viscosity: Not applicable (solid)
3. Safety & Hazard Attributes
- Hazard Class (GHS Classification):
- Not classified as hazardous
- Low acute toxicity
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- No OSHA PEL or ACGIH TLV established
- Reactivity:
- Stable under normal conditions
- Avoid strong acids and strong oxidizing agents
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, well-ventilated area
- Keep tightly sealed and away from moisture
- Incompatible Materials:
- Strong acids, oxidizers
- Container Type:
- Plastic-lined fiber drums or HDPE containers
- Shelf Life & Expiration Date:
- Stable for several years if properly stored
- Special Handling Requirements:
- Use appropriate PPE (gloves, safety glasses) when handling large amounts
- Avoid dust inhalation
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Listed under TSCA and REACH
- GRAS when used in food within approved limits
- Hazard Symbols (GHS Pictograms):
- None required
- Transportation Restrictions:
- Not classified as hazardous for transportation
- No UN number
- Waste Disposal Method:
- Dispose of in accordance with local and national regulations
- Non-hazardous waste—may be landfilled if uncontaminated
6. Environmental & Health Impact
- Ecotoxicity:
- Low environmental toxicity
- May contribute to nutrient loading in water systems
- Persistence in Environment:
- Dissolves and disperses in water readily
- Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
- Biodegradability:
- Inorganic salt—not biodegradable, but environmentally benign
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Standard lab coat
- Nitrile or neoprene gloves
- Safety goggles or face shield
- Dust mask or respirator if dust is generated
Handling:
- Avoid creating or inhaling dust
- Do not ingest or get in eyes
- Wash hands and exposed areas thoroughly after handling
- Handle in a well-ventilated area
- Avoid contact with incompatible substances (e.g., strong acids or bases)
Storage:
- Store in a tightly closed container
- Keep in a dry, cool, and well-ventilated place
- Protect from moisture and humidity
- Store away from strong oxidizing agents
FIRST AID MEASURES
Inhalation:
- Remove from exposure to fresh air
- Keep at rest and comfortable for breathing
- Seek medical attention if symptoms such as coughing or difficulty breathing occur
Skin Contact:
- Wash thoroughly with soap and water
- Remove contaminated clothing
- Seek medical attention if irritation develops
Eye Contact:
- Rinse cautiously with water for at least 15 minutes
- Hold eyelids open and flush continuously
- Get medical help if irritation persists
Ingestion:
- Rinse mouth with water
- Do not induce vomiting
- Seek medical attention if large amounts are ingested or symptoms appear
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable under normal conditions
Extinguishing Media:
- Use appropriate media for surrounding fire (water spray, foam, COâ‚‚, or dry chemical)
Hazardous Combustion Products:
- Sulfur oxides (SOâ‚“), potassium oxides may be released during thermal decomposition
Firefighter Protection:
- Wear full protective gear and self-contained breathing apparatus (SCBA)
- Approach fire from upwind to avoid toxic fumes
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