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
1.04440
Kaolin
powder
Synonym(s):
Kaolin
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
2.5 kg | Check Cart for Availability | $190.00 |
About This Item
Quality Segment
impurities
≤0.001% Pb (Lead), ≤2.0% Substances soluble in hydrochloric acid
loss
≤15.0% loss on ignition, 600°C
pH
6-7 (20 °C, 50 g/L in H2O, slurry)
density
2.6 g/cm3 at 20 °C
bulk density
470 kg/m3
storage temp.
no temp limit
SMILES string
[Si](=O)(O[Si](=O)O[Al]=O)O[Al]=O.O.O
InChI
1S/2Al.O5Si2.2H2O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;
InChI key
NLYAJNPCOHFWQQ-UHFFFAOYSA-N
Analysis Note
Substances soluble in hydrochloric acid: ≤ 2.0 %
Appearance of substance (colour): passes test
Appearance of substance (description): passes test
Carbonate: passes test
Iron: passes test
Pb (Lead): ≤ 0.001 %
Loss on ignition (600 °C): ≤ 15.0 %
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| description powder | description heavy, powder | description anhydrous, free-flowing, Redi-Dri™ | description - |
| pH 6-7 (20 °C, 50 g/L in H2O, slurry) | pH - | pH - | pH 3.5-5.0 (20% in water) |
| storage temp. no temp limit | storage temp. - | storage temp. - | storage temp. - |
| loss ≤15.0% loss on ignition, 600°C | loss - | loss ≤2.0% loss on drying | loss ≤2.0% loss on drying |
| impurities ≤0.001% Pb (Lead), ≤2.0% Substances soluble in hydrochloric acid | impurities acid. or alk. react. impurities, in accordance, organic impurities, in accordance, ≤0.01% heavy metals (as Pb), ≤1% soluble in acid (as SO4) | impurities - | impurities - |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| density 2.6 g/cm3 at 20 °C | density - | density - | density - |
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flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
13 - Non Combustible Solids
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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?
1 answer-
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
Helpful?
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What is the Silica to Alumina ratio
1 answer-
The silica to alumina ratio is not determined for this product.
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