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Winterization

ABOUT WINTERIZATION
  • Winterization is the process of filtering out unwanted waxy plant particles after extraction. The extract and a solution are combined and placed in a freezer overnight. The waxy particles resulting from the freezing procedure are removed using vacuum filtration. This process works best when low temperatures are maintained.
HOW UNITED (PRODUCTS) CAN HELP
  • Large capacity labware enables economical batch runs (Filtering Flasks/Bottles)
  • Porcelain components can withstand temperature changes between a freezer and a laboratory setting (Buchner Funnels)
  • Components are pre-selected for compatibility and offered as kits (Winterization Kits)
WINTERIZATION LABWARE KITS

Each convenient package includes a filtering flask, buchner funnel, filter adapter set, and medium flow filter paper. Filtering flasks are from our FG5340 series. They are constructed using heavy wall borosilicate and include a thick rim and hose barb. The 10,000ml set includes our FFB5340 series heavy wall borosilicate filtering bottle with hose barb. Porcelain buchner funnels are from our JBF series. All kits include our FASN07 filter adapter set. Filter paper is from our FPR series and has medium porosity and flow rate. Circular filters are packaged 100 per box.

WNTK2 2000ml Winterization Labware Kit Contents:
1. Filtering Flask, Borosilicate Glass, 2000ml (FG5340-2000) 1
2. Buchner Funnel, Porcelain, 2000ml (JBF2000) 1
3. Filter Adapter Set of 7, Synthetic Rubber (FASN07) 1
4. Filter Paper, Medium Porosity/Flow, 18cm circle, pk/100 (FPR180) 1
WNTK5 5000ml Winterization Labware Kit Contents:
1. Filtering Flask, Borosilicate Glass, 5000ml (FG5340-5000) 1
2. Buchner Funnel, Porcelain, 4800ml (JBF4800) 1
3. Filter Adapter Set of 7, Synthetic Rubber (FASN07) 1
4. Filter Paper, Medium Porosity/Flow, 24cm circle, pk/100 (FPR240) 1
WNTK10 10000ml Winterization Labware Kit Contents:
1. Filtering Bottle, Borosilicate Glass, 10000ml (FFB5340-10000) 1
2. Buchner Funnel, Porcelain, 4800ml (JBF4800) 1
3. Filter Adapter Set of 7, Synthetic Rubber (FASN07) 1
4. Filter Paper, Medium Porosity/Flow, 24cm circle, pk/100 (FPR240) 1
Item No. Description
WNTK2 Winterization Labware Kit, 2000ml
WNTK5 Winterization Labware Kit, 5000ml
WNTK10 Winterization Labware Kit, 10000ml
FILTER ADAPTER SET OF 7, SYNTHETIC RUBBER

Set of seven synthetic rubber adapter cones designed to fit Buchner and fritted glass funnels, porcelain filters without headpieces, and for reverse flow cleaning of filter crucibles. Adapters can be used to support funnels, Gooch crucibles, filter tubes, and other apparatus in filtration assemblies. These adapters are functional even if not tightly fitted around the funnel stem. Can be used individually or nested with adjacent sizes. Provide an excellent alternative to boring special size holes in rubber stoppers. Autoclavable.

Filter adapter set is used to make an air-tight seal between a buchner funnel and a filtering flask
Item No. Description
F8650 Filter Adapter Set of 7, Synthetic Rubber
Adapter # Top OD (mm) Bottom OD (mm) Top ID (mm) Bottom ID (mm)
1 21 10 17 6
2 27 16 20 10
3 36 21 30 15
4 45 27 39 21
5 57 37 50 29
6 70 45 62 35
7 90 55 80 46
FILTERING BOTTLE, 10000ML, BOROSILICATE GLASS

With its thick glass walls and sturdy construction, this 10L bottle/flask is perfect for filtering large volumes of liquid. The thick walls and design enables this flask to withstand vacuum filtration without imploding. Graduated in 1000ml increments on a scale from 2000ml to 8000ml with an accuracy of +/- 5%. Neck size fits a #13 rubber stopper. The hose barb has an O.D. of 1/2”.

Item No. Description
FFB5340-10000 Filtering Bottle, 10000ml, Borosilicate Glass
WINTERIZATION LABWARE KITS

Porcelain Buchner funnels include fixed perforated plates. Funnels are glazed on inner and outer surfaces except for the rims.

Autoclavable. Withstand temperatures to 1150°C. To prevent thermal stress cracks, we strongly recommend a heating/cooling rate not exceeding 200°C per hour. United porcelain buchner funnels offer excellent resistance to acids and alkalies except for hydrofluoric acid.

Porcelain buchner funnels can be placed in the freezer overnight to help maintain low temperatures during winterization

Item No. Approx. Capacity (ml) Top Dia. x Height (mm) For Filter Paper Size (cm) Qty per pack
JBF003 3 20 x 66 1.3 1
JBF035 35 50 x 91 4 1
JBF100 100 65 x 103 5.5 1
JBF200 200 86 x 140 7 1
F8590-6 350 105 x 162 9 1
F8590-7 600 127 x 194 11 1
F8590-8 800 143 x 200 12.5 1
JBF1150 1150 172 x 220 15 1
F8591-2000 2000 210 x 272 18 1
F8591-4800 4800 270 x 352 24 1
FILTERING FLASKS, BOROSILICATE GLASS

Heavy wall borosilicate filtering flask includes a heavy-duty rim and a bolt neck with tubulation. Graduations are printed in durable white enamel.

Item No. Capacity (ml) Approx. O.D. x Height (mm) Qty per pack Qty per case
F4990-0050 50 52 x 85 6 24
F4990-0100 100 64 x 108 6 24
F4990-0250 250 86 x 160 1 18
F4990-0500 500 108 x 190 1 18
F4990-1000 1000 138 x 245 1 12
F4990-2000 2000 170 x 305 1 12
F4990-5000 5000 237 x 390 1 1
FILTER PAPERS, CIRCULAR, GRADE 1

The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box.

Item No. Diameter (cm) Qty per pack
FPR007 7 100
FPR009 9 100
FPR011 11 100
FPR125 12.5 100
FPR150 15 100
FPR180 18 100
F3400-240 24 100
F3400-320 32 100


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