Cork to fit test tube
Cork to Fit Test Tube is a conical sealing component made from natural or synthetic cork, designed specifically to fit snugly into standard laboratory test tubes. It ensures a tight seal that prevents contamination, limits evaporation, and maintains sample integrity during storage or handling. Due to its compressible and chemically resistant structure, it is ideal for routine laboratory operations and industrial testing processes. These corks are available in various sizes to accommodate a wide range of test tube diameters and are compatible with both glass and plastic tubes.
Cork to fit test tube
Primary Uses
- Laboratory Applications
- Used to securely seal test tubes during experiments involving heating, mixing, or storage.
- Prevents contamination of biological or chemical samples in microbiology and chemistry labs.
- Essential in temporary closure of test tubes during centrifugation or short-term incubation.
- Employed in test tube-based titration, dilution, and sampling procedures.
- Helps reduce solvent loss and exposure during sensitive analytical testing.
- Industrial Applications
- Used in industrial R&D and quality control labs for test tube sample sealing.
- Employed in material testing environments requiring isolation of small-scale samples.
- Supports sample preservation in environmental testing and pharmaceutical prototyping.
Secondary Uses
- Other Industrial Uses
- Common in technician starter kits for training and lab setups.
- Applied in short-term sample containment in mobile testing labs and field kits.
1. Basic Identification Attributes
- Product Type: Test Tube Cork Stopper
- Material: Natural cork or synthetic cork composite
- Shape: Tapered to fit various test tube sizes
2. Physical & Chemical Properties
- Appearance: Light brown (natural) or beige (synthetic) with slight surface grain
- Texture: Compressible and lightweight
- Heat Resistance: Suitable for mild heating applications
- Chemical Resistance: Resistant to alcohols, mild acids, and bases
- Odor: Neutral or slightly woody
3. Safety & Hazard Attributes
- Toxicity: Non-toxic; inert under standard conditions
- Flammability: Flammable when exposed to direct flame
- Allergen Information: Natural cork may trigger allergic reactions in sensitive individuals
4. Storage & Handling Attributes
- Storage Conditions: Store in dry, cool areas away from chemicals and heat
- Container Type: Polybags, cartons, or cork racks
- Handling Precautions: Avoid crushing or prolonged soaking in solvents
5. Regulatory & Compliance Attributes
- Compliant with general laboratory equipment material safety guidelines
- Manufactured under controlled conditions to ensure dimensional consistency
6. Environmental & Health Impact
- Natural cork is biodegradable and environmentally friendly
- Low ecological risk during disposal
Safety Handling Precautions
- Handle with care to avoid fragmenting or splintering
- Replace damaged or degraded corks immediately
First Aid Measures
- Inhalation: Not applicable
- Skin Contact: Wash with soap and water after prolonged handling
- Eye Contact: Flush with water if cork debris enters eye
- Ingestion: Not intended for ingestion; seek medical attention if swallowed
Firefighting Measures
- Fire Hazards: Flammable cork material
- Extinguishing Media: Foam, dry chemical, carbon dioxide
- Special Precautions: Keep away from flames or heat sources
Related products
Aspirator Bottle Glass
Aspirator Bottle Glass is a durable, high-quality glass container designed specifically for use in laboratory suction and aspiration systems. These bottles are engineered to safely collect and contain liquids and aerosols during filtration, vacuum, or aspiration procedures. Made from chemically resistant glass, Aspirator Bottles offer excellent clarity and durability while withstanding the rigors of laboratory use. They typically feature secure screw caps or stopper closures that ensure leak-proof performance and easy handling. Widely used in medical, research, and industrial laboratories, Aspirator Bottle Glass is essential for safe fluid management in various applications.
Beaker Hysil
Beaker Hysil is a high-quality borosilicate glass laboratory beaker known for its excellent thermal resistance, chemical durability, and mechanical strength. It is designed for use in various scientific and industrial laboratory applications requiring heating, mixing, and measuring of liquids. The clear, transparent body allows easy observation of contents, and graduated markings provide approximate volume measurements. Beaker Hysil is widely used in educational, research, and industrial laboratories.
Clear laboratory reagent bottles
 Product Description
Clear Laboratory Reagent Bottles are high-quality, transparent containers designed specifically for storing, transporting, and dispensing chemical reagents and solutions in laboratory settings. Made from durable borosilicate glass or high-grade plastic materials, these bottles offer excellent chemical resistance, clarity for easy identification of contents, and airtight sealing to maintain reagent integrity. They are essential in analytical, biochemical, and industrial laboratories for safe and organized chemical storage.
Condenser liebig
The Liebig Condenser is a straight glass tube surrounded by a water jacket used to cool and condense vapors back into liquids during distillation processes. It is a fundamental laboratory apparatus designed for efficient heat exchange, allowing vapors to lose heat and convert back to liquid form. Constructed from durable borosilicate glass, the Liebig condenser withstands thermal stress and chemical corrosion, making it suitable for repeated use in various laboratory and industrial distillation and reflux applications.
Cork to fit boiling tube cork
Cork to fit boiling tube cork is a precision-cut natural or synthetic cork designed to seal boiling tubes securely in laboratory settings. These corks provide an airtight seal while resisting mild heat and chemical exposure typically encountered in general lab procedures. They help prevent contamination, evaporation, or spillage of contents during storage, gentle heating, or experimental handling. Available in various diameters, these corks are essential for maintaining experimental integrity in both research and industrial laboratories.
Cork to fit boiling tube cork stopper
Cork to Fit Boiling Tube Cork Stopper is a precision-manufactured stopper made from natural or synthetic cork, designed specifically to fit standard boiling tubes. It ensures a snug, secure closure that prevents leaks, contamination, or evaporation during laboratory procedures. These stoppers are essential in both routine and specialized lab applications where temporary sealing of test vessels is required. With good compressibility, mild chemical resistance, and reliable sealing properties, the stopper is a staple in laboratory glassware accessories.
Cork to fit conical flask
Cork to Fit Conical Flask is a tapered sealing component made from natural or synthetic cork, designed to provide a snug, airtight closure for conical (Erlenmeyer) flasks. These stoppers are essential for laboratory procedures requiring the containment of samples, prevention of evaporation, or protection from airborne contaminants. Their compressibility, resistance to mild chemicals, and reusability make them ideal for both general lab work and industrial testing environments. The corks are precisely sized to fit standard flask openings, ensuring compatibility with a wide range of flask volumes.
Crocodile Clips
Crocodile Clips are versatile electrical connectors featuring serrated jaws to securely grip wires or terminals. Commonly made from copper or brass with a nickel or chrome plating, these clips ensure reliable conductivity and mechanical stability. Widely used in laboratory and industrial settings for quick temporary electrical connections, testing, and circuit prototyping.

Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders