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
202614
Aluminum sulfate
99.99% trace metals basis
Synonym(s):
Aluminium sulphate, Aluminum alum, Dialuminum sulfate, dialuminum trisulfate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Please contact Customer Service for Availability | 401,00 PLN |
25 g | Please contact Customer Service for Availability | 1.370,00 PLN |
100 g | Please contact Customer Service for Availability | 3.350,00 PLN |
About This Item
Quality Segment
assay
99.99% trace metals basis
form
powder and chunks
reaction suitability
core: aluminum
impurities
≤150.0 ppm Trace Metal Analysis
mp
770 °C (dec.) (lit.)
density
2.71 g/mL at 25 °C (lit.)
SMILES string
[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
InChI
1S/2Al.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
InChI key
DIZPMCHEQGEION-UHFFFAOYSA-H
General description
Application
- As a surface modification agent/co-adsorbent for dye sensitizers in solar cell. It improves the surface of photoelectrode and purify dye solution through flocculation.
- As an electrolyte additive for lead-acid batteries to effectively inhibit the passivation of electrodes. It helps to slow down cathode sulfation and improve the reversibility of the electrode reaction.
- To prepare aqueous electrolyte for high energy aluminum electrochemical cells. It helps to form artificial solid electrolyte interphase to attain high specific energy.
1 of 1
This Item | |||
|---|---|---|---|
| form powder and chunks | form powder | form - | form chunks or granules, crystalline powder, powder or crystals |
| assay 99.99% trace metals basis | assay - | assay - | assay ≥97%, 98.0-102.0% (ACS specification) |
| Quality Level 200 | Quality Level 200 | Quality Level - | Quality Level 200 |
| impurities ≤150.0 ppm Trace Metal Analysis | impurities - | impurities - | impurities ≤0.01% insolubles |
| density 2.71 g/mL at 25 °C (lit.) | density 1.69 g/mL at 25 °C (lit.) | density - | density - |
| mp 770 °C (dec.) (lit.) | mp - | mp - | mp - |
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Storage Class
11 - Combustible Solids
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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?
-
-
What is the best way to dilute this aluminum sulfate to prepare a stock solution? Best Regards
1 answer-
This product is not tested for solubility. However, various sources report that this material is readily soluble in water.
Helpful?
-