General Lab Products & Reviews

These 50 mL PYREX® high form crucibles have 40mm diameter fine porosity (4 to 5.5 µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable to heat in an electric furnace. Crucibles should not be subject to sudden temperature changes. In order to avoid strain, they should not be remo…

These 50 mL PYREX® high form crucibles have 40mm diameter medium porosity (10 to 15 µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable to heat in an electric furnace. Crucibles should not be subject to sudden temperature changes. In order to avoid strain, they should not be re…

These 30 mL PYREX® low form crucibles have 30mm diameter coarse porosity (40 to 60 µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable to heat in an electric furnace. Crucibles should not be subject to sudden temperature changes. In order to avoid strain, they should not be rem…

These 30 mL PYREX® lowform crucibles have 30mm diameter fine porosity (4 to 5.5 µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable to heat in an electric furnace. Crucibles should not be subject to sudden temperature changes. In order to avoid strain, they should not be remove…

These 30 mL PYREX® low form crucibles have 30mm diameter medium porosity (10 to 15 µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable to heat in an electric furnace. Crucibles should not be subject to sudden temperature changes. In order to avoid strain, they should not be rem…

This PYREX® 500 mL distilling apparatus is used for determining nitrogen in organic compounds. This assembly includes a Kjeldahl flask specifically developed for this process and a Graham condenser with 10mm O.D. tubulations. Both the digestion and distillation stages can be performed in this flask. The assembly shown is the distillation stage, where the amount of ammonia, and hence, nitrogen, is established. The inlet tube al…

This PYREX® 500 mL Kjeldahl flask is a replacement for the Kjeldahl Nitrogen Distilling Apparatus (No. 3340-500) used for determining nitrogen in organic compounds. The Kjeldahl flask has an outer Standard Taper 29/42 joint. For replacement Graham condensers, see No. 2540-200.

This PYREX® adapter tube is a replacement for the Kjeldahl Nitrogen Distilling Apparatus (No. 3340-500) used for determining nitrogen in organic compounds. The tube has an inner 29/42 Standard Taper joint on the flask end and an inner 19/38 Standard Taper joint on the Graham condenser end. For replacement Graham condensers, see No. 2540-200.

Brand: PYREX®

Brand: PYREX®

Brand: PYREX®

Brand: PYREX®

Brand: PYREX®

Brand: PYREX®

This PYREX® 500 mL general purpose batch distillation apparatus allows the addition of reagents via the No. 27 Standard Taper PYREX® stoppered neck. It is ideally suited for the batch production of high purity distilled water. The flask has a flat bottom with a side delivery tube, terminating in a 19/38 Standard Taper joint. Graham condenser tubulations are 10mm O.D. For replacement stoppers, see No. 7650. For replacement cond…

This PYREX® 1L flat bottom flask has a No. 27 Standard Taper PYREX® stoppered neck and a side delivery tube, terminating in a 19/38 Standard Taper joint. It is a replacement flask for the General Purpose Distillation Apparatus No. 3360-1L. For replacement stoppers, see No. 7650. For replacement Graham condensers, see No. 2540-200.

This PYREX® 500 mL general purpose batch distillation apparatus allows the addition of reagents via the No. 27 Standard Taper PYREX® stoppered neck. It is ideally suited for the batch production of high purity distilled water. The flask has a flat bottom with a side delivery tube, terminating in a 19/38 Standard Taper joint. Graham condenser tubulations are 10mm O.D. For replacement stoppers, see No. 7650. For replacement cond…

This PYREX® 500 mL flat bottom flask has a No. 27 Standard Taper PYREX® stoppered neck and a side delivery tube, terminating in a 19/38 Standard Taper joint. It is a replacement flask for the General Purpose Distillation Apparatus No. 3360-500. For replacement stoppers, see No. 7650. For replacement Graham condensers, see No. 2540-200.

These 45mm diameter PYREX® coarse porosity (40 to 60 µm) fritted thimbles are designed for use in PYREX® Soxhlet extractors when it is desirable to weigh the material extracted or where paper thimbles may be attacked by the chemicals used. These medium length thimbles are 130mm long. For PYREX® extractors and extraction apparatus, see Nos. 3740 through 3880. For more information on fritted products, please check the Guide to S…

LongThese 45mm diameter PYREX® extra coarse porosity (170 to 220 µm) fritted thimbles are designed for use in PYREX® Soxhlet extractors when it is desirable to weigh the material extracted or where paper thimbles may be attacked by the chemicals used. These medium length thimbles are 130mm long. For PYREX® extractors and extraction apparatus, see Nos. 3740 through 3880. For more information on fritted products, please check th…

These 35mm diameter PYREX® coarse porosity (40 to 60 µm) fritted thimbles are designed for use in PYREX® Soxhlet extractors when it is desirable to weigh the material extracted or where paper thimbles may be attacked by the chemicals used. These medium length thimbles are 90mm long. For PYREX® extractors and extraction apparatus, see Nos. 3740 through 3880. For more information on fritted products, please check the Guide to Se…

These 35mm diameter PYREX® extra coarse porosity (170 to 220 µm) fritted thimbles are designed for use in PYREX® Soxhlet extractors when it is desirable to weigh the material extracted or where paper thimbles may be attacked by the chemicals used. These medium length thimbles are 90mm long. For PYREX® extractors and extraction apparatus, see Nos. 3740 through 3880. For more information on fritted products, please check the Gui…

These 25mm diameter PYREX® coarse porosity (40 to 60 µm) fritted thimbles are designed for use in PYREX® Soxhlet extractors when it is desirable to weigh the material extracted or where paper thimbles may be attacked by the chemicals used. These short length thimbles are only 85mm long. For PYREX® extractors and extraction apparatus, see Nos. 3740 through 3880. For more information on fritted products, please check the Guide t…

These microfiltration components are designed for the filtration of aqueous liquids. They may be used for the filtration of cell culture media, buffers or for particulate analysis of water samples. Units have coarse porosity frits, and accommodate 47mm filters. The components are interchangeable with competitive product offerings. Apparatus includes: 300 mL funnel, 47mm fritted glass support base, aluminum clamp and #8 silicon…

This 300 mL graduated funnel, 47mm is designed for assembly with the fritted glass support base, Cat. No. 33972-B.