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Poly Aluminium Chloride PAC Extra Pure
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SHORT DESCRIPTION
Poly Aluminium Chloride (PAC) Extra Pure is a high-efficiency inorganic coagulant widely used in water treatment, paper manufacturing, and various industrial processes. In its extra pure grade, PAC is characterized by a high degree of purity, minimal impurities, and consistent performance, making it suitable for critical applications requiring stringent quality control.
PAC works by neutralizing the negative charges on suspended particles, allowing them to coagulate and settle quickly. It is highly effective in clarifying drinking water, treating industrial and municipal wastewater, and removing heavy metals, organic matter, and pathogens. Additionally, in the paper industry, PAC improves paper strength and retention of fillers.
This compound should be handled with appropriate PPE, including gloves and eye protection, and stored in a cool, dry, and well-ventilated area, away from reactive substances. PAC is non-flammable but may cause irritation on contact with skin or eyes.
Description
USES
Primary Uses
- Water Treatment:
- Highly effective coagulant used to remove suspended solids, organic matter, and heavy metals from drinking water and wastewater.
- Industrial Effluent Treatment:
- Used in industries like textiles, paper, and leather for clarifying and treating chemical-laden effluents.
- Paper Manufacturing:
- Acts as a retention aid and sizing agent to improve paper quality and reduce chemical usage.
Secondary Uses
- Cosmetics & Personal Care:
- Occasionally used in deodorants and antiperspirants for its astringent and binding properties.
- Oil & Gas Industry:
- Helps in separating oil from water during the oil recovery process.
- Textile Finishing:
- Used for dye fixing and improving fabric durability by enhancing color fastness.
- Food Processing (regulated):
- Sometimes used as a clarifying agent in sugar refining, under strict quality control.
- Swimming Pools:
- Functions as a clarifier to improve water transparency by binding fine particles.
KEY PRODUCT FEATURES
KEY ATTRIBUTES
1. Basic Identification Attributes
- Chemical Name: Poly Aluminium Chloride
- CAS Number: 1327-41-9
- HS Code: 2827.49.00
- Molecular Formula: [Al₂(OH)nCl₆₋ₙ]ₘ (general formula varies depending on basicity)
- Synonyms:
- PAC
- Polyaluminum chloride
- Aluminium hydroxychloride
- Aluminum chlorohydrate (variant)
2. Physical & Chemical Properties
- Physical State: Solid (powder or granules) or liquid (aqueous solution)
- Color & Odor: Yellow to white (solid); colorless to pale yellow (solution); odorless
- Boiling Point & Melting Point:
- Decomposes before boiling
- Melting point not well-defined due to polymeric structure
- Density/Specific Gravity:
- Solid: ~1.2–1.4 g/cm³
- Liquid: ~1.15–1.35 g/mL (at 20 °C)
- Solubility:
- Highly soluble in water
- Insoluble in organic solvents
- pH Level: ~2.5–5.0 (in 1% solution, varies with basicity)
- Vapor Pressure & Volatility: Negligible
- Flash Point: Not flammable
- Autoignition Temperature: Not applicable
- Viscosity: Depends on concentration in liquid form; typically moderate
3. Safety & Hazard Attributes
- Hazard Class (GHS Classification):
- Eye Irritant (Category 2A)
- Skin Irritant (Category 2)
- NFPA Ratings:
- Health: 2
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- No specific OSHA/ACGIH limits
- Reactivity:
- Reacts with strong bases and reducing agents
- Stable under normal storage conditions
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, well-ventilated place
- Avoid direct sunlight and moisture
- Incompatible Materials:
- Strong alkalis
- Reducing agents
- Container Type:
- Plastic drums, HDPE containers for liquids
- Plastic-lined bags or fiber drums for solids
- Shelf Life & Expiration Date:
- Liquid: ~6 months
- Solid: ~12–24 months if sealed and dry
- Special Handling Requirements:
- Use gloves and safety goggles
- Avoid inhalation of dust or mist
- Handle in well-ventilated area or fume hood
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Approved for use in water treatment (varies by country)
- Not classified as a hazardous chemical under most global regulations
- Transportation Restrictions:
- Not regulated as hazardous for transport
- Waste Disposal Method:
- Dispose in accordance with local, regional, national, and international regulations
- Can be neutralized and diluted before disposal in wastewater (check local rules)
6. Environmental & Health Impact
- Ecotoxicity:
- Low to moderate aquatic toxicity depending on pH and concentration
- Persistence in Environment:
- Hydrolyzes and settles out in water treatment; not persistent
- Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
- Biodegradability:
- Not biodegradable, but breaks down into inert aluminum hydroxide and chloride
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear chemical-resistant gloves (e.g., nitrile).
- Use safety goggles or face shields to prevent eye contact.
- Wear a lab coat or apron.
- Use a dust mask or respirator if powder is airborne.
Handling:
- Avoid inhalation of dust.
- Avoid contact with skin, eyes, and clothing.
- Do not eat, drink, or smoke when handling this product.
- Use in a well-ventilated area or under fume hood.
Storage:
- Store in a cool, dry, and well-ventilated place.
- Keep the container tightly closed.
- Protect from moisture and incompatible substances like strong alkalis.
FIRST AID MEASURES
Inhalation:
- Move to fresh air immediately.
- If symptoms such as coughing or difficulty breathing occur, seek medical attention.
Skin Contact:
- Wash thoroughly with soap and water.
- Remove contaminated clothing.
- Seek medical attention if irritation develops or persists.
Eye Contact:
- Rinse cautiously with water for at least 15 minutes.
- Remove contact lenses if present and easy to do.
- Get medical attention immediately.
Ingestion:
- Rinse mouth with water.
- Do not induce vomiting.
- Seek immediate medical attention.
FIRE FIGHTING MEASURES
Flammability:
- Not flammable or combustible.
Extinguishing Media:
- Use water spray, dry chemical, foam, or carbon dioxide.
Hazardous Combustion Products:
- May release aluminum oxides and hydrogen chloride gas under high temperatures.
Firefighter Protection:
- Wear self-contained breathing apparatus (SCBA) and full protective gear.
- Avoid breathing decomposition products.
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