Height
Nominal capacity
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Compare modelsNTD 939
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The DWK Duran 100 mL Clear Glass Dropping Bottle is designed for precise dispensing of liquids in laboratory settings. Made from high-quality clear soda-lime glass, this bottle offers good chemical and physical properties, making it suitable for various applications that do not involve high thermal stresses. The bottle comes complete with a replaceable NS glass pipette and a natural rubber teat, ensuring accurate and controlled drop-wise addition of reagents or samples. The clear glass construction allows for easy visualization of contents, facilitating accurate measurements and monitoring.
This dropping bottle is crucial for laboratories that require precise and controlled dispensing of chemicals and samples.
NTD 939
Inc. VAT
Manufacturer P/N
232702404
Part Number
9.072 648
Manufacturer
DWK Life Sciences
Height
105 mm
NTD 831
Inc. VAT
Manufacturer P/N
232701708
Part Number
9.072 646
Manufacturer
DWK Life Sciences
Height
79 mm
It is designed for precise dispensing of liquids in laboratory settings. Made from high-quality clear soda-lime glass, this bottle offers good chemical and physical properties, making it suitable for various applications that do not involve high thermal stresses. The bottle comes complete with a replaceable NS glass pipette and a natural rubber teat, ensuring accurate and controlled drop-wise addition of reagents or samples. The clear glass construction allows for easy visualization of contents, facilitating accurate measurements and monitoring.
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1 min read
Cleaning laboratory glassware properly is essential for accurate, safe, and repeatable lab work. This guide explains how to remove stubborn residue from beakers, flasks, bottles, volumetric glassware, and other lab glassware, including grease, dried salts, biological residue, stains, and burnt deposits. It also covers safe cleaning methods, common mistakes, drying and storage tips, and when damaged glassware should be replaced.
1 min read
Pipette calibration helps laboratories confirm that liquid handling results remain accurate, repeatable, and traceable. This guide explains how pipettes are calibrated to ISO 8655 standards, including gravimetric testing, environmental control, correct tip selection, volume testing, calibration records, and common mistakes to avoid. It also covers when to use in-house calibration and when an external calibration service may be more suitable.
1 min read
A free molarity and dilution calculator covering four essential lab calculations: C1V1=C2V2 dilution (solve for any unknown), molarity from mass, mass from molarity, and serial dilution table generation. Includes worked examples, a concentration units guide and step-by-step preparation instructions for every result.
1 min read
Free online buffer preparation calculator. Select your buffer system, enter target pH, concentration and volume, and get an exact lab-ready recipe with reagent masses and step-by-step instructions. Covers PBS, Tris-HCl, sodium phosphate, acetate, HEPES, MOPS and more.
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1 min read
Laboratory balances are essential weighing instruments used to measure samples, reagents, powders, chemicals and materials with accuracy and consistency. They are commonly used in research, education, quality control, pharmaceutical testing, food testing, industrial laboratories and general scientific workflows.
NTD 939
Inc. VAT
