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Sand Acid Washed Extra Pure
Original price was: $ 19.00.$ 18.67Current price is: $ 18.67.
Sand Acid Washed Extra Pure is a highly purified silica sand, treated with acid to remove impurities such as iron oxides and organic materials. It is an off-white granular solid primarily composed of silicon dioxide (SiO₂), characterized by its high purity and inertness. The acid washing process improves its adsorption capacity and surface cleanliness, making it ideal for use as a drying agent, filtration medium, and catalyst support in both laboratory and industrial applications. Due to its low solubility and high thermal stability, it serves in high-temperature processes and sensitive purification techniques. While chemically inert, the fine dust generated can pose respiratory hazards due to crystalline silica content; hence, proper handling precautions are essential. It remains stable under normal storage conditions, requiring dry and sealed containment to preserve its properties.
Sand Acid Washed Extra Pure
PRIMARY USES
- Laboratory Applications:
- Used extensively as a desiccant and drying agent for gases and liquids to remove moisture.
- Applied in chromatography to improve separation by removing impurities and moisture.
- Utilized as a purification medium for chemical samples and reagents.
- Serves as a catalyst support in chemical reactions requiring inert filler materials.
- Industrial Applications:
- Used in water filtration and purification systems due to its high adsorption capacity for impurities.
- Functions as an abrasive and filler in various industrial processes, including paints and coatings.
- Acts as a filter aid in sugar refining and chemical manufacturing.
- Environmental Uses:
- Employed in soil remediation and wastewater treatment to adsorb heavy metals and organic pollutants.
- Used in air filtration systems to trap dust and contaminants.
SECONDARY USES
- Construction Industry:
- Used as a sandblasting medium after acid washing to remove contaminants and improve abrasiveness.
- Incorporated in the production of specialty concretes and mortars to improve durability.
- Cosmetics & Personal Care:
- Added to exfoliating products as a natural abrasive.
1. Basic Identification Attributes
- Chemical Name: Sand Acid Washed
- CAS Number: Not applicable (mixture of predominantly silica)
- HS Code: 2506.10.00
- Molecular Formula: Primarily SiO₂ (silicon dioxide)
- Synonyms:
- Acid-Washed Silica Sand
- Washed Quartz Sand
- Purified Silica
2. Physical & Chemical Properties
- Physical State: Granular solid
- Color & Odor: Off-white to light beige, odorless
- Melting Point: Approximately 1710 °C (pure silica)
- Boiling Point: Not applicable (decomposes)
- Density/Specific Gravity: About 2.65 g/cm³
- Solubility: Insoluble in water and organic solvents
- pH Level: Slightly acidic to neutral depending on washing procedure
- Vapor Pressure: Negligible (non-volatile)
- Flash Point: Not applicable (non-flammable)
- Autoignition Temperature: Not applicable
- Viscosity: Not applicable
3. Safety & Hazard Attributes
- Hazard Class (GHS Classification):
- May cause respiratory tract irritation if inhaled as fine dust (contains crystalline silica)
- NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
- Exposure Limits:
- OSHA Permissible Exposure Limit (PEL) for respirable crystalline silica: 0.05 mg/m³ over 8-hour TWA
- Reactivity:
- Chemically inert under normal conditions
- Not reactive with acids or bases in typical uses
- Potential Health Risks:
- Chronic inhalation of respirable crystalline silica dust may cause silicosis, a serious lung disease
- Avoid generation of respirable dust
4. Storage & Handling Attributes
- Storage Conditions:
- Store in a dry, well-ventilated place
- Keep containers tightly sealed to prevent moisture contamination and dust release
- Incompatible Materials:
- Avoid strong alkalies that may alter surface chemistry
- Container Type:
- Heavy-duty plastic or metal drums with sealed lids
- Shelf Life & Expiration:
- Stable indefinitely when stored properly
- Special Handling:
- Use dust suppression methods (e.g., wetting) during transfer
- Wear appropriate PPE to avoid inhalation and eye contact
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Not classified as hazardous under most chemical regulations
- Compliant with REACH and OSHA standards regarding silica-containing materials
- Transportation Restrictions:
- No special transportation requirements
- Waste Disposal:
- Dispose as non-hazardous inert solid according to local regulations
- Avoid dust release during disposal
6. Environmental & Health Impact
- Ecotoxicity:
- Environmentally inert with minimal aquatic toxicity
- Persistence:
- Non-biodegradable but physically stable and inert
- Carcinogenicity:
- Respirable crystalline silica dust is classified as a human carcinogen by IARC when inhaled
- Biodegradability:
- Not biodegradable
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Use NIOSH-approved respirators for silica dust exposure.
- Wear safety goggles or face shields to prevent eye irritation.
- Use gloves and protective clothing to reduce skin contact.
Handling Instructions:
- Work in well-ventilated areas or use local exhaust ventilation.
- Avoid creating dust clouds; apply wetting agents if necessary.
- Wash hands thoroughly after handling.
Storage Instructions:
- Keep container sealed tightly.
- Store away from moisture and incompatible substances.
FIRST AID MEASURES
Inhalation:
- Remove affected person to fresh air immediately.
- Seek medical attention if coughing, difficulty breathing, or chest discomfort develops.
Skin Contact:
- Wash with soap and water thoroughly.
- Seek medical attention if irritation persists.
Eye Contact:
- Rinse eyes with plenty of clean water for at least 15 minutes.
- Seek medical advice if irritation continues.
Ingestion:
- Rinse mouth with water.
- Seek medical help if discomfort occurs.
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable and non-combustible material
Extinguishing Media:
- Use extinguishing agents suitable for surrounding materials if involved in fire
Hazardous Combustion Products:
- None from the sand itself
Firefighter Protection:
- Wear full protective gear and self-contained breathing apparatus if exposed to other burning materials
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