If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
95577
Chelex® 100 sodium form
100-200 mesh particle size
Synonym(s):
crosslinked polystyrene-iminodiacetate ion exchange resin
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Check Cart for Availability | $940.00 |
About This Item
product line
Chelex®
Quality Segment
form
crystals
reaction suitability
reaction type: solution phase peptide synthesis
loss
65-85% loss on drying, 110°C
matrix
polystyrene/DVB
matrix active group
paired iminodiacetate groups
particle size
100-200 mesh
General description
Application
- As an ion exchange resin in wastewater treatment it has a high affinity for metal ions and selectivity for transition metals such as Zn, Co, Ni, and Cu
- In the extraction and purification of DNA
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description 100-200 mesh particle size | description 200-400 mesh particle size | description 50-100 mesh (dry) | description 98% |
| form crystals | form powder or chunks | form beads | form solid |
| particle size 100-200 mesh | particle size 200-400 mesh | particle size 50-100 mesh (dry) | particle size - |
| matrix polystyrene/DVB | matrix polystyrene/DVB | matrix 1% cross-linked polystyrene, cross-linked polystyrene beads | matrix - |
| loss 65-85% loss on drying, 110°C | loss ~80% loss on drying, 110°C | loss - | loss - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| matrix active group paired iminodiacetate groups | matrix active group paired iminodiacetate groups | matrix active group iminodiacetic acid (sodium form), paired iminodiacetate groups | matrix active group - |
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Storage Class
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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