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
204501
Ammonium sulfate
99.999% trace metals basis
Synonym(s):
Mascagnite
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
50 g | Available to ship TODAY | $134.00 |
250 g | Available to ship TODAY | $515.00 |
About This Item
$134.00
Available to ship TODAYDetails
Quality Segment
assay
99.999% trace metals basis
form
crystals and lumps
technique(s)
HPLC: suitable
impurities
≤15.0 ppm Trace Metal Analysis
pH
5.0-6 (25 °C, 132 g/L)
mp
>280 °C (dec.) (lit.)
solubility
acetone: insoluble(lit.), ethanol: insoluble(lit.)
density
1.77 g/mL at 25 °C (lit.)
SMILES string
N.N.OS(O)(=O)=O
InChI
1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key
BFNBIHQBYMNNAN-UHFFFAOYSA-N
General description
It can also be used to enhance the stability of perovskite solar cells. The incorporation of sulfate species minimizes chemical degradation at the perovskite/ETL interface. It is insoluble in acetone, alcohol and ether.
Application
- As a structure-directing agent (SDA) to prepare hexagonal WO3 nanorod thin films for high-performance energy storage devices. The addition of (NH4)2SO4 prevents agglomeration of crystals.
- As an electrolyte for aqueous ammonium dual-ion batteries and MnO2/carbon supercapacitors.
- As a blowing agent to prepare porous carbon structures for supercapacitors. These porous materials show high capacitance and long-term stability.
- To enhance the stability of perovskite solar cells. The incorporation of sulfate species minimizes chemical degradation at the perovskite/ETL interface.
1 of 1
This Item | |||
|---|---|---|---|
| description 99.999% trace metals basis | description Molecular Biology, ≥99.0% | description ACS reagent, ≥99.0% | description puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99% |
| form crystals and lumps | form powder | form powder or crystals | form crystals |
| assay 99.999% trace metals basis | assay ≥99.0% | assay ≥99.0% | assay ≥99% |
| solubility acetone: insoluble(lit.), ethanol: insoluble(lit.) | solubility H2O: 0.667 g/mL | solubility water: soluble 132 g/L at 20 °C | solubility - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| pH 5.0-6 (25 °C, 132 g/L) | pH 5.0-6 (25 °C, 132 g/L) | pH 5.0-6.0 (25 °C, 5%) | pH 5-6 (25 °C, 5%) |
| density 1.77 g/mL at 25 °C (lit.) | density 1.77 g/mL at 25 °C (lit.) | density 1.77 g/mL at 25 °C (lit.) | density 1.77 g/mL at 25 °C (lit.) |
Still not finding the right product?
Explore all of our products under Ammonium sulfate
Storage Class
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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?
-