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Sigma-Aldrich

Chelex® 100 sodium form

200-400 mesh particle size

Synonym(s):

crosslinked polystyrene-iminodiacetate ion exchange resin

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100 G
NOK 6,770.00

NOK 6,770.00

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100 G
NOK 6,770.00

About This Item

CAS Number:
11139-85-8
MDL number:
MFCD00163980
UNSPSC Code:
23151817
NACRES:
NA.22

NOK 6,770.00

Please contact Customer Service for Availability
Request a Bulk Order

product line

Chelex®

Quality Level

200

form

powder or chunks

reaction suitability

reaction type: solution phase peptide synthesis

loss

~80% loss on drying, 110°C

matrix

polystyrene/DVB

matrix active group

paired iminodiacetate groups

particle size

200-400 mesh

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General description

Chelex®100 sodium form is a chelating resin made of a styrene and divinylbenzene copolymer. It has a pair of iminodiacetate ions that chelate polyvalent metal ions, shows greater metal ion selectivity, and has a stronger binding force.[1]

Application

Chelex®100 sodium form is commonly used:
  • As an ion exchange resin, in wastewater treatment due to its high affinity for metal ions[2] [3]
  • For the extraction and purification of DNA[4]
  • As adsorbent in protein purification[5]
  • In determination of trace elements in marine water[6]

Legal Information

Chelex is a registered trademark of Bio-Rad Laboratories, Inc.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000417218
0000417218
0000378496
0000378496
0000384507

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One-step purification/extraction method to access glyphosate, glufosinate, and their metabolites in natural waters
CT Vu, et al.
Journal of Chromatography A, 1649, 462188-462188 (2021)
Some examples of the use of amphoteric ion-exchange resins for inorganic separations.
Samczynski Z and Dybczynski R.
Journal of Chromatography A, 789(1), 157-167 (1997)
Ion-exchange of nickel by iminodiacetic acid chelating resin Chelex 100
H Leinonen, et al.
Reactive and Functional Polymers, 43, 1-6 (2000)
Standing wave design of carousel ion-exchange processes for the removal of zinc ions from a protein mixture
S Mun, et al.
Industrial & Engineering Chemistry Research, 45, 316-329 (2006)
Henrik H De Fine Licht et al.
BMC evolutionary biology, 14, 244-244 (2014-12-05)
Cooperative benefits of mutualistic interactions are affected by genetic variation among the interacting partners, which may have consequences for interaction-specificities across guilds of sympatric species with similar mutualistic life histories. The gardens of fungus-growing (attine) ants produce carbohydrate active enzymes
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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