© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Name: Whatman Qualitative Filter Paper
Main Use: Laboratory filtration, quality testing, and sample preparation
Primary Material: Cellulose fibers
Typical Appearance: White, odorless, lightweight circular or rectangular sheets
Common Grades: Numbered by pore size and thickness, from fast to slow filtration
Brand Recognition: Trusted in schools, universities, research labs, and industrial settings
Supplier Reputation: Long-standing market presence, often considered a reliable standard for routine filtration work
Physical Hazards: Paper cuts if handled carelessly, minor risk of static shock
Chemical Hazards: None under ordinary use, does not contain hazardous or reactive chemicals
Fire Hazards: Burns easily, serves as a good ignition source at laboratories or near open flames
Health Hazards: No toxic fumes or vapors during normal use, not considered a health risk in solid, unaltered form
Irritation Potential: Inhalation of dust particles may irritate respiratory tract in sensitive individuals
Main Component: Purified cellulose from carefully sourced wood pulps
Additives: No intentional dyes, chemicals, or strengthening agents for most grades
Purity: High degree of washing, free from significant impurities or fillers
Total Content: Natural polysaccharides, minimal natural lignin remnants for some grades
Inhalation: Move away from dusty environment, rinse mouth, drink water if discomfort occurs
Skin Contact: If experiencing a paper cut, wash with soap and water, and apply a clean bandage if needed
Eye Contact: Flush eyes with running water if fibers or dust get in
Ingestion: Not intended for consumption; if accidently swallowed, rinse mouth and drink water
Suitable Extinguishing Media: Water spray, foam extinguishers, CO2, or dry chemical powders
Specific Hazards: Dense smoke, possible release of carbon monoxide and carbon dioxide during combustion
Protective Equipment: Firefighters should use standard turnout gear and breathing apparatus
Advice: Keep material away from ignition sources, remove unburned paper to prevent fire spread
Spill Response: Sweep up scattered paper to avoid tripping hazard, collect waste for recycling or disposal
Personal Protection: Gloves can help prevent paper cuts if handling large amounts
Environmental Concerns: Avoid washing cellulose fibers into drains where large volume could cause blockages
Handling: Store in clean, dry environment, away from moisture and strong chemicals
Precautions: Use tongs or clean gloves if sterile filtration is required
Storage Conditions: Flat storage helps prevent curling or deformation, avoid exposure to sunlight and open flames
Longevity: Properly stored filter paper remains effective for years without loss of performance
Respiratory Protection: Dust mask in environments with heavy dust accumulation
Skin Protection: Light gloves minimize risk of cuts, especially when handling bulk packages
Eye Protection: Safety goggles when cutting sheets or working near powder-generating processes
Other Controls: Maintain good laboratory housekeeping to prevent accumulation of paper scraps on the floor
Form: Dry, porous, flexible sheet
Color: White, sometimes slightly off-white
Odor: Odorless; inert under normal conditions
pH: Neutral to slightly acidic for some grades
Solubility: Insoluble in water but may disintegrate upon prolonged soaking
Melting Point: Not applicable, combusts at elevated temperature
Other Features: Low ash content, good wet-strength in specific varieties
Stability: Stable under normal storage conditions, resists mild acids and bases
Reactivity: Non-reactive with most chemicals used in laboratory filtration, does not decompose spontaneously
Hazardous Reactions: Burns at relatively low temperatures due to cellulose content
Incompatible Materials: Strong oxidizing agents, direct flames, and sustained heat sources
Acute Toxicity: No evidence of acute toxicity in humans due to pure cellulose
Skin Irritation: Rare, mostly limited to minor mechanical scrapes
Inhalation Effects: Mild respiratory irritation only if high dust levels are present
Chronic Effects: No known chronic toxicity related to ordinary laboratory use
Carcinogenicity: Not listed as a carcinogen by national or international agencies
Biodegradability: Readily biodegradable over time as cellulose breaks down naturally
Aquatic Impact: Minimal threat unless disposed of in large amounts directly into waterways
Wildlife Impact: Paper fragments unlikely to harm animals in regular disposal scenarios
Recycling: Compostable and recyclable in most municipal and commercial waste programs
Preferred Disposal: General waste or recycling bin for uncontaminated sheets
Laboratory Waste: Paper used with hazardous chemicals requires disposal according to relevant local and institutional protocols
Composting: Clean filter paper works well for home or community compost bins
Mass Disposal: Avoid burning in open air to reduce air pollution and health risks
Hazard Classification: Not considered dangerous for transportation by ground, sea, or air
Packing Concerns: Protect from moisture and crushing during delivery
Labeling: No special documentation needed if paper is uncontaminated
Main Regulatory Stance: Not considered hazardous under major global chemical regulations such as OSHA, REACH, or GHS
Restrictions: No import or export controls in most regions for clean, unused paper
Employer Duties: Maintain good storage, labeling, and disposal practices to comply with workplace safety requirements
User Advice: Follow best practices and local guidelines for use and disposal, particularly after contact with hazardous laboratory materials
