|
Whatman cellulose and glass microfiber extraction thimbles are known for
their purity and consistent high quality. The thimbles are widely used
in Soxhlet extraction units providing a safe, convenient and efficient
method of solvent extraction of solids and semi-solids. Soxhlet
extraction is a widely used technique for the analysis of fats or
pesticides in foods and soil materials and many other procedures that
involve a solid-liquid extraction.
Cellulose Extraction Thimbles
Cellulose extraction thimbles are produced from high quality alpha
cellulose cotton linter and have excellent mechanical strength and
retention.
Standard single thickness thimbles have a wall thickness of
approximately 1 mm (10 µm nominal particle retention).
Double thickness thimbles have a wall thickness of approximately 2 mm
(6 µm nominal particle retention) for applications where higher
retention and increased wet or dry strength or rigidity is required.
A wall thickness of approximately 1.5 mm is also available in the
Reeve Angel® thimble product line for mid-range particle retention.
Glass Microfibre Thimbles
High purity glass microfibre thimbles manufactured from 100% pure
borosilicate glass are available for specialized applications. The
thimbles are completely free of binders or additives and can be used at
temperatures up to 500°C or when using solvents incompatible with
cellulose thimbles. These thimbles are also used in pollution monitoring
techniques (0.8 µm nominal particle retention). Typical thickness 1.7
mm.
Features and Benefits
- Available in a range of sizes and wall thicknesses to suit your
application
- Designed to fit most commercially available Soxhlet extractors
- No binders are added
Applications
- Smoke stack gas monitoring
- Soxhlet extraction
- Analyzing pesticide residues
- Determining oil/fat content of foods (e.g., French fries)
- Analysis of oil and grease in solid wastes
Thimble Size Selection
Thimble sizes should be selected carefully to fit extractors correctly.
The different sizes represent the established practice of showing the
internal diameter and overall length of the thimble in millimetres.
Therefore, an extra allowance for wall thickness should be made when
calculating external diameters. The thimble should pass through the
narrower end of the upper extractor socket, allowing 1-2mm clearance,
and be 5-10mm above the level of the top of the siphon tube.
| Typical Data - Extraction
Thimbles |
| Grade |
Material |
Retention rate to BS 4400* % |
Max. temperature şC |
| 603 |
Cellulose |
– |
120 |
| 603 t |
Cellulose, thin walls** |
– |
120 |
| 603 g |
Borosilicate glass fibers*** |
99 |
500 |
| ** corresponds to “single thickness” in the
British Standard |
| *** with inorganic binder |
| Ordering Information -
Extraction Thimbles |
| Single Thickness1 |
Double Thickness2 |
|
|
| Catalogue Number |
Dimensions (mm)* |
Quantity/Pack |
| Cellulose Thimbles |
| 2800-105 |
— |
10 x 50 |
25 |
| 2800-166 |
2810-166 |
16 x 60 |
25 |
| 2800-185 |
— |
18 x 55 |
25 |
| 2800-199 |
— |
19 x 90 |
25 |
| 2800-226 |
— |
22 x 65 |
25 |
| 2800-228 |
2810-228 |
22 x 80 |
25 |
| 2800-258 |
2810-258 |
25 x 80 |
25 |
| 2800-259 |
— |
25 x 90 |
25 |
| 2800-250 |
2810-250 |
25 x 100 |
25 |
| 2800-266** |
2810-266 |
26 x 60** |
25 |
| 2800-307 |
— |
30 x 77 |
25 |
| 2800-308 |
2810-308 |
30 x 80 |
25 |
| 2800-300 |
— |
30 x 100 |
25 |
| 2800-338 |
2810-338 |
33 x 80 |
25 |
| 2800-339 |
2810-339 |
33 x 94 |
25 |
| 2800-331 |
2810-331 |
33 x 118 |
25 |
| 2800-432 |
2810-432 |
43 x 123 |
25 |
| 2800-608 |
2810-608 |
60 x 180 |
25 |
| 2800-900 |
— |
90 x 200 |
25 |
| Glass Microfiber
Thimbles–Grade HP-GF |
| 2814-199 |
— |
19 x 90 |
25 |
| 2814-300 |
— |
30 x 100 |
25 |
| 2814-432 |
— |
43 x 123 |
25 |
| *Internal diameter and external lengths. |
| **Fits Soxtec™ extractor. |
| ą Single wall thickness = 1 mm |
| ˛ Double wall thickness = 2 mm |
| Ordering Information |
| Extraction Thimbles for
Standard Soxhlet Apparatus |
| Extractor volume mL |
I.D. x Height (mm) |
Wall thickness (mm) |
Quantity/Pack |
Catalogue Number |
| Grade 603 - according to
DIN 12 449 |
| 30 |
22 x 80 |
1.5 |
25 |
10 350 211 |
| 100 |
33 x 94 |
1.5 |
25 |
10 350 242 |
| 250 |
33 x 205 |
1.5 |
25 |
10 350 250 |
| Grade 603 t - according to
BS 2071 |
| 200 |
41 x 123 |
1.0 |
25 |
10 350 465 |
| |
|
|
|
|
| Extraction Thimbles for
Automated Extraction Apparatus - Grade 603 |
| Extraction system |
I.D. x Height (mm) |
Wall thickness (mm) |
Quantity/ Pack |
Catalogue Number |
| BÜCH - IExtraction System B-811 |
25 x 100 |
1.5 |
25 |
10 350 219 |
| |
22 x 80 |
1.5 |
25 |
10 350 211 |
| |
33 x 94 |
1.5 |
25 |
10 350 242 |
| |
43 x 123 |
2.0 |
25 |
10 350 267 |
| GERHARDT/OI - Soxtherm Automatic |
33 x 80 |
1.5 |
25 |
10 350 240 |
| FOSS-TECATOR - Soxtec Avanti 2050 Auto
System |
33 x 80 |
1.5 |
25 |
10 350 240 |
| DIONEX |
for 11 ml cell |
1.0 |
25 |
10 350 106 |
| ASE 200 |
for 22 ml cell |
1.0 |
25 |
10 350 108 |
| |
|
|
|
|
| Extraction Thimbles |
| I.D. x Height (mm) |
Wall thickness (mm) |
Quantity/ Pack |
Catalogue Number |
|
| Grade 603(Cellulose) |
|
| 10 x 50 |
1.0 |
25 |
10 350 202 |
|
| 19 x 90 |
1.0 |
25 |
10 350 207 |
|
| 22 x 80 |
1.5 |
25 |
10 350 211 |
|
| 25 x 60 |
1.5 |
25 |
10 350 215 |
|
| 25 x 70 |
1.5 |
25 |
10 350 216 |
|
| 25 x 80 |
1.5 |
25 |
10 350 217 |
|
| 25 x 100 |
1.5 |
25 |
10 350 219 |
|
| 26 x 60 |
1.5 |
25 |
10 350 220 |
|
| 27 x 80 |
1.5 |
25 |
10 350 223 |
|
| 27 x 100 |
1.5 |
25 |
10 350 224 |
|
| 28 x 60 |
1.5 |
25 |
10 350 225 |
|
| 28 x 80 |
1.5 |
25 |
10 350 226 |
|
| 28 x 100 |
1.5 |
25 |
10 350 227 |
|
| 30 x 80 |
1.5 |
25 |
10 350 234 |
|
| 30 x 90 |
1.5 |
25 |
10 350 235 |
|
| 30 x 100 |
1.5 |
25 |
10 350 236 |
|
| Grade 603 (Cellulose) |
|
| 33 x 60 |
1.5 |
25 |
10 350 238 |
|
| 33 x 80 |
1.5 |
25 |
10 350 240 |
|
| 33 x 90 |
1.5 |
25 |
10 350 241 |
|
| 33 x 94 |
1.5 |
25 |
10 350 242 |
|
| 33 x 100 |
1.5 |
25 |
10 350 243 |
|
| 33 x 118 |
1.5 |
25 |
10 350 245 |
|
| 33 x 120 |
1.5 |
25 |
10 350 246 |
|
| 33 x 130 |
1.5 |
25 |
10 350 247 |
|
| 33 x 205 |
1.5 |
25 |
10 350 250 |
|
| 34 x 130 |
1.5 |
25 |
10 350 252 |
|
| 35 x 120 |
1.5 |
25 |
10 350 254 |
|
| 35 x 150 |
1.5 |
25 |
10 350 255 |
|
| 40 x 85 |
2.0 |
25 |
10 350 261 |
|
| 41 x 123 |
2.0 |
25 |
10 350 265 |
|
| 43 x 123 |
2.0 |
25 |
10 350 267 |
|
| 48 x 145 |
2.0 |
25 |
10 350 273 |
|
| 48 x 200 |
2.0 |
25 |
10 350 274 |
|
| 44 x 230 |
2.0 |
25 |
10 350 275 |
|
| 75 x 250 |
2.5 |
25 |
10 350 287 |
|
| Grade 603 t (Cellulose) |
|
| 26 x 60 |
1.0 |
25 |
10 350 420 |
|
| 41 x 123 |
1.0 |
25 |
10 350 465 |
|
| Grade 603 g (Glass fibre) |
|
| 16 x 50 |
1.0 |
25 |
10 371 005 |
|
| 19 x 90 |
1.0 |
25 |
10 371 007 |
|
| 22 x 80 |
1.5 |
25 |
10 371 011 |
|
| 25 x 65 |
1.5 |
25 |
10 371 014 |
|
| 25 x 80 |
1.5 |
25 |
10 371 017 |
|
| 25 x 100 |
1.5 |
25 |
10 371 019 |
|
| 26 x 60 |
1.5 |
25 |
10 371 120 |
|
| 28 x 60 |
1.5 |
25 |
10 371 025 |
|
| 30 x 100 |
1.5 |
25 |
10 371 036 |
|
| 33 x 94 |
1.5 |
25 |
10 371 042 |
|
| 33 x 100 |
1.5 |
25 |
10 371 043 |
|
| 33 x 118 |
1.5 |
25 |
10 371 045 |
|
| 33 x 205 |
1.5 |
25 |
10 371 050 |
|
| 35 x 150 |
1.5 |
25 |
10 371 055 |
|
| 23,8 x 68* |
1.5 |
25 |
10 371 114 |
|
| * Type GOTHE (outer diameter 26.8 mm) |
|
Ordering Information - Reeve Angel®
Thimbles 1 |
| Catalogue Number |
Dimensions (mm)* |
Quantity/Pack |
| 5128-6520 |
22 x 80 |
50 |
| 5128-6521 |
25 x 80 |
50 |
| 5128-6522 |
25 x 100 |
50 |
| 5128-6523 |
26 x 60 |
50 |
| 5128-6524 |
33 x 80 |
50 |
| 5128-6525 |
33 x 94 |
50 |
| 5128-6526 |
43 x 123 |
50 |
| 1Wall thickness: 1.5 mm for mid-range
particle retention. |
| * Internal diameter and external lengths. |
|
+32 (0) 16
58 90 45 
+32 (0) 16
50 90 45
