The molecular weight of this product is not determined on a lot-to-lot basis. However, historical data indicates a molecular weight range of 160,000-200,000 daltons.
21902
Carboxymethylcellulose sodium salt
medium viscosity
Synonym(s):
Sodium carboxymethylcellulose
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About This Item
Pricing and availability is not currently available.
Quality Segment
form
powder
availability
not available in USA
extent of labeling
0.60-0.95 substitution
loss
≤15% loss on drying, 110 °C
color
light yellow
pH
6.5-8.0 (10 mg/mL in H2O)
viscosity
300-1000 mPa.s, 2 % in H2O(25 °C) (dry substance)
mp
> 300.05 °C ((> 572.09 °F ))
SMILES string
[Na].OC(C(O)C(O)C=O)C(O)CO.OC(=O)C
InChI
1S/C6H12O6.C2H4O2.Na/c7-1-3(9)5(11)6(12)4(10)2-8;1-2(3)4;/h1,3-6,8-12H,2H2;1H3,(H,3,4);
InChI key
DPXJVFZANSGRMM-UHFFFAOYSA-N
Application
Soluble carboxymethylcelluloses (CM-cellulose; CMC) available in varying viscosities are used as viscosity modifiers (thickeners) to stabilize emulsions and as a chemical dispersants of oils and other carbon structures such as nanotubes. CMCs are used in the development of biostructures such as biofilms, emulsions and nanoparticles for drug delivery.
Other Notes
Characterization of endoglucanase III from Trichoderma reesei[1].
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
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This Item | |||
|---|---|---|---|
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| form powder | form powder | form powder | form powder |
| color light yellow | color light yellow | color beige | color - |
| mp > 300.05 °C ((> 572.09 °F )) | mp > 300.05 °C ((> 572.09 °F)) | mp - | mp 270 °C (dec.) |
| extent of labeling 0.60-0.95 substitution | extent of labeling - | extent of labeling - | extent of labeling 0.9 carboxymethyl groups per anhydroglucose unit |
| availability not available in USA | availability - | availability not available in USA | availability - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 21902-100G | 04061835365418 |
| 21902-250G | 04061838775764 |
| 21902-1KG | 04061835365425 |
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What is the molecular weight of this product?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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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