Labware and Lab Supplies Products & Reviews

Corning® 250 mL polypropylene (PP) centrifuge tubes are ideal for applications requiring large volume centrifugation. Please check our Technical Information Listing for information on the physical and chemical properties of Corning plastic centrifuge tubes as well as important suggestions for safe use. Support cushions (Catalog No. 430236 for 250) must be used with this product unless the centrifuge rotor has appropriate V-bo…

These Costar® 0.65 mL microcentrifuge tubes are made of natural (uncolored) polypropylene and are RNase-/DNase-free. Supplied nonsterile and are autoclavable External graduations and frosted writing spot for easy sample identification Positive seal design allows for repeated opening and closing Flat cap surface for convenient labeling Withstands a maximum RCF of 17,000xg

11mm aluminum crimp cap silicone/ PTFE liner

20mm polyethylene plug for headspace vials

20mm red silicone/aluminum face seal 3mm thick

2mL amber vial with 'double top' capable of taking crimp or screw cap.

1mL crimp top tapered vial - clear - for Waters

Corning® 50 mL clear polypropylene (PP) conical bottom centrifuge tubes come with the advanced polyethylene CentriStar™ caps and are bulk packed 25 per bulk bag. Foam racks can be purchased separately. The CentriStar™ cap has an easy-on/easy-off flat top and offers advanced ergonomics with its wider knurls and roll-over edge design for easier gripping. This leak-proof design comes with a revolutionary plug feature that virtual…

20 mL size vials made from Wheaton 180 low potassium borosilicate glass.  The background counts are consistent and low and ultraviolet transmission is high. • Available with cap attached, caps packed separately or without cap • Dimensions (OD x H): 28 mm x 61 mm (with cap attached)

Electrify your crimping and decapping operations with the new innovative Wheaton Crimpenstein™. The innovative Crimpenstein™ is engineered to improve productivity and efficiency where vials are capped with aluminum seals. The AC powered Crimpenstein™ crimper/decapper provides fast, consistent results with a simple push of a button. The ability to change jaw-sets offers an unmatched level of flexibility and economy for appli…

Droplet™ Blood Collection Tray - Designed with phlebotomists in mind! Extensive research in clinics and hospitals with working phlebotomists led to the development of the lightweight, roomy, and easy-to-clean Droplet blood collection tray by Heathrow Scientific. Along with the sturdy plastic frame, you get a set of economical, disposable inserts specifically designed for blood collection. Keeping your blood collection tray cle…

Parafilm® Sealing Film - Colorless, moisture-proof film molds to surface Stretch film tight to seal beakers, flasks, tubes, and Petri dishes. Order a dispenser separately above. Parafilm is a registered trademark of American Can Company.

concentration: 0.01 mol/L (0.01 N Solution)HS-No.: 38220000Storage: RTLGK: 8 BDisposal: 13Specification:

additional product description: DIN 19616 (Bl. 2)HS-No.: 28151200Storage: RTLGK: 8 BDisposal: 13R: 35S: 26-36/37/39-45hazardidentification: corrosiveClass/PG: 8/IIUN-No.: UN1824WGK: 1Specification: Assay (titr.): approx. 50 %

Formula: H2O4SM: 98.08 g/molCAS-No.: 7664-93-9HS-No.: 28070010EC-No.: 231-639-5Storage: RTLGK: 8 BDisposal: 12R: 35S: 26-30-36/37/39-45hazardidentification: corrosiveClass/PG: 8/IIUN-No.: UN1830WGK: 1Other properties: hygroscopicSpecification: Assay (titr.): min. 95 %

Density (d 20°C/4°C): 0.90n 20°C/D: 1.3723Boiling point: 77°CMelting point: -83°CSolubility (20°C): 80 g/L (H2O)Formula: C4H8O2M: 88.11 g/molCAS-No.: 141-78-6HS-No.: 29153100EC-No.: 205-500-4Storage: RTLGK: 3 ADisposal: 1R: 11-36-66-67S: 16-26-33hazardidentification: irritant, highly flammableClass/PG: 3/IIUN-No.: UN1173WGK: 1Specification: Assay (GC): min. 99 %

Boiling point: 81°CDensity (d 20°C/4°C): 0.786Melting point: -46°Cn 20°C/D: 1.3442Formula: C2H3NM: 41.05 g/molCAS-No.: 75-05-8HS-No.: 29269095EC-No.: 200-835-2Storage: RTLGK: 3 ADisposal: 1R: 11-20/21/22-36S: 16-36/37hazardidentification: highly flammable, harmfulClass/PG: 3/IIUN-No.: UN1648WGK: 2Specification: Assay (GC): min. 99.9 %

Melting point: 801°CBoiling point: 1461°CSolubility (20°C): 358 g/L (H2O)Formula: ClNaM: 58.44 g/molCAS-No.: 7647-14-5HS-No.: 25010091EC-No.: 231-598-3Storage: RTLGK: 10 - 13Disposal: 14WGK: nwgSpecification: Assay (titr., calc. on dried substance): 99.0 - 100.5 %

Melting point: -46°CBoiling point: 81°CDensity (d 20°C/4°C): 0.786n 20°C/D: 1.3442Formula: C2H3NM: 41.05 g/molCAS-No.: 75-05-8HS-No.: 29269095EC-No.: 200-835-2Storage: RTLGK: 3 ADisposal: 1R: 11-20/21/22-36S: 16-36/37hazardidentification: highly flammable, harmfulClass/PG: 3/IIUN-No.: UN1648WGK: 2Specification: Assay (GC): min. 99.9 %

Note: * This AAS element standard is traceable to SRM from NIST.HS-No.: 38220000Storage: RTLGK: 8 BR: 34-37S: 26-36/37/39-45hazardidentification: corrosive, irritantClass/PG: 8/IIUN-No.: UN1789WGK: 1Specification:

Formula: C36H70MgO4M: 591.27 g/molCAS-No.: 557-04-0HS-No.: 29157000EC-No.: 209-150-3Storage: RTLGK: 10 - 13WGK: nwgSpecification: Assay (titr.): 4.0 - 5.0 % Mg

Density (d 20°C/4°C): 0.786Melting point: -46°CBoiling point: 81°Cn 20°C/D: 1.3442Formula: C2H3NM: 41.05 g/molCAS-No.: 75-05-8HS-No.: 29269095EC-No.: 200-835-2Storage: RTLGK: 3 ADisposal: 1R: 11-20/21/22-36S: 16-36/37hazardidentification: highly flammable, harmfulClass/PG: 3/IIUN-No.: UN1648WGK: 2Specification: Assay (GC): min. 99.9 %

Melting point: 212 - 215°C (dec.)Formula: C16H18N3NaO4SM: 371.39 g/molCAS-No.: 69-52-3HS-No.: 29411000EC-No.: 200-708-1Storage: RTLGK: 10 - 13Specification: Assay (HPLC): 91.0 - 102.0 %

Concentration: 0.005 mol/L (0.01 N Solution)HS-No.: 38220000Storage: RTLGK: 10 - 13WGK: 1Specification: