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
542040
Potassium nitrate
99.999% trace metals basis
Synonym(s):
Saltpeter
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 10 g | Available to ship TODAYfromMILWAUKEE | $79.20 | |
| 50 g | Available to ship TODAYfromMILWAUKEE | $175.00 |
About This Item
Quality Level
assay
99.999% trace metals basis
form
crystalline
reaction suitability
core: potassium
technique(s)
flow cytometry: suitable
impurities
≤15.0 ppm Trace Metal Analysis
mp
334 °C (lit.)
cation traces
Ca: ≤0.5 ppm, Cs: ≤0.3 ppm, Mg: ≤0.4 ppm, Na: ≤6.0 ppm, Rb: ≤5.1 ppm, Zn: ≤0.6 ppm
SMILES string
[K+].[O-][N+]([O-])=O
InChI
1S/K.NO3/c;2-1(3)4/q+1;-1
InChI key
FGIUAXJPYTZDNR-UHFFFAOYSA-N
Application
- Improving drought and salinity tolerance in barley by application of salicylic acid and potassium nitrate: Studies the ameliorative effects of potassium nitrate and salicylic acid on barley, showing improved tolerance to drought and salinity stress (KA Fayez, SA Bazaid, 2014).
- Prior application of 10% potassium nitrate to reduce post-bleaching sensitivity: a randomized triple-blind clinical trial: Evaluates the use of potassium nitrate in reducing sensitivity post dental bleaching, providing clinical evidence of its effectiveness (M Rezende, KL da Silva, TC Miguel, PV Farago, 2020).
1 of 1
This Item | |||
|---|---|---|---|
| form crystalline | form crystals | form powder or crystals | form crystalline |
| assay 99.999% trace metals basis | assay ≥99.0% | assay 99.0-100.5% | assay ≥99% |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| cation traces Ca: ≤0.5 ppm, Mg: ≤0.4 ppm, Rb: ≤5.1 ppm, Cs: ≤0.3 ppm, Zn: ≤0.6 ppm, Na: ≤6.0 ppm | cation traces Ca: ≤0.005%, Fe: ≤3 ppm, Mg: ≤0.002%, Na: ≤0.005%, heavy metals: ≤5 ppm (by ICP-OES) | cation traces As: ≤1 mg/kg, Ca: ≤50 mg/kg, Cu: ≤10 mg/kg, Fe: ≤10 mg/kg, Na: ≤1000 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg | cation traces Ca: ≤10 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Mg: ≤20 mg/kg, Na: ≤50 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, heavy metals: ≤5 ppm (by ICP-OES) |
| impurities ≤15.0 ppm Trace Metal Analysis | impurities ≤0.005% insolubles | impurities acidity or alkalinity, complies, reducing matter, complies, residual solvents, complies, ≤0.001% heavy metals (as Pb), ≤0.005% ammonium (NH4) | impurities ≤0.001% ammonium (NH4), ≤0.005% water insolubles |
| mp 334 °C (lit.) | mp 334 °C (lit.) | mp 334 °C (lit.) | mp 334 °C (lit.) |
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signalword
Warning
hcodes
Hazard Classifications
Ox. Sol. 3
Storage Class
5.1B - Oxidizing hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 542040-10G | 04061832567105 |
| 542040-50G | 04061838140845 |
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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?
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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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