311340
Inhibitor removers
replacement packing, for removing tert-butylcatechol
Synonym(s):
Protease Inhibitor Removal Resin
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| Size/SKU | Availability | Price |
|---|---|---|
250 g | Check Cart for Availability | $267.00 |
500 g | Available to ship TODAY | $465.00 |
About This Item
vapor pressure
17 mmHg ( 20 °C)
Quality Segment
type
for removing tert-butylcatechol
form
powder
SMILES string
[Al]21O[Al](O2)O1
InChI
1S/2Al.3O
InChI key
TWNQGVIAIRXVLR-UHFFFAOYSA-N
General description
• Useful in applications which require that the stabilizer or inhibitor (hydroquinone (HQ), hydro-quinone monomethyl ether (MEHQ, 4-methoxyphenol), or 4-tert-butylcatechol (TBC) be removed prior to use.
• Columns may be discarded1 when exhausted or reused by filling column approximately 3/4 full with new packing material. HQ/MEHQ columns refill vol.: ~21g. TBC column refill vol.:~30g.
• Approx. column capacity:
HQ/MEHQ: 3L at 100ppm
TBC: 4L at 15ppm
• TBC columns and packings are not recommended for use with polar solvents, including acrylic acid. Vacuum distillation is suggested for such applications.
Easy-to-use:
1. Prewashing of prepacked glass columns with a small amount of monomer is recommended.
2. Add monomer (or solvent) to an addition funnel which is secured above column.
3. Add monomer dropwise to the column. Monitor rate of addition to prevent overflow of the column. Collect monomer in an appropriate container.
4. For low-melting solid monomers, keep temperature of column above the melting point during use.
Caution: Overheating may cause monomer to polymerize on the column. Viscous or high-melting monomers may be diluted in an appropriate solvent before addition to the column.
1Unused columns can be discarded with other solid chemical waste. After use, the toxicity and hazards of the monomer, from which the inhibitor is being removed, should be considered in deciding how to dispose of the packing material or column.
1 of 1
This Item | |||
|---|---|---|---|
| description replacement packing, for removing tert-butylcatechol | description Prepacked column for removing hydroquinone and monomethyl ether hydroquinone | description Prepacked column, for removing tert-butylcatechol | description phase sulfonic acid, L × I.D. 1 cm × 8 mm, 20 μm particle size, glass |
| form powder | form beads | form powder | form - |
| vapor pressure 17 mmHg ( 20 °C) | vapor pressure 17 mmHg ( 20 °C) | vapor pressure 17 mmHg ( 20 °C) | vapor pressure - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level - |
| type for removing tert-butylcatechol | type - | type - | type - |
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Storage Class
11 - Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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