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
431311
Ammonium acetate
≥99.99% trace metals basis
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 50 g | Available to ship TODAYfromMILWAUKEE | $106.00 | |
| 250 g | Available to ship TODAYfromMILWAUKEE | $394.00 |
About This Item
Quality Level
agency
suitable for ASTM® 7969, suitable for ASTM® 7979, suitable for DIN 38407-43, suitable for EPA 1634, suitable for EPA 534, suitable for EPA 538.1, suitable for EPA 8328, suitable for EPA ACB B21-03, suitable for EPA ACB B23-05b, suitable for GB 31604.35-2016, suitable for GB 5009.253-2016, suitable for ISO 21675 2019, suitable for ISO 25101, suitable for ISO/CEN 15968-2011
reg. compliance
suitable for FDA C-010.02
vapor pressure
<0.001 hPa
description
for inorganic trace analysis
assay
≥99.99% trace metals basis
form
solid
impurities
≤0.005% insolubles, <100 ppm total metallic impurities
pH
6.7-7.3 (25 °C, 5% in water), 6.7-7.3
mp
110-112 °C (dec.) (lit.)
solubility
water: soluble 1,480 g/L at 4 °C
anion traces
chloride (Cl-): ≤5 ppm, nitrate (NO3-): ≤0.001%, sulfate (SO42-): ≤0.001%
cation traces
Fe: ≤5 ppm, heavy metals: ≤5 ppm
SMILES string
N.CC(O)=O
InChI
1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
InChI key
USFZMSVCRYTOJT-UHFFFAOYSA-N
General description
Application
It may be used in the synthesis of the following:
- Phenanthroline derivatives employed as corrosion inhibitors.
- Highly substituted imidazoles.
- 2,4-Diarylpolyhydroquinoline derivatives.
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form solid | form crystalline, solid | form solid | form powder, solid |
| solubility water: soluble 1,480 g/L at 4 °C | solubility - | solubility - | solubility - |
| assay ≥99.99% trace metals basis | assay 99.999% trace metals basis | assay ≥98% | assay ≥97% |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| impurities ≤0.005% insolubles, <100 ppm total metallic impurities | impurities ≤20.0 ppm Trace Metal Analysis | impurities ≤0.005% KMnO4 red. matter (as O), ≤2% water (Karl Fischer), ≤5 mg/kg heavy metals (as Pb) | impurities ≤0.005% insolubles |
| anion traces chloride (Cl-): ≤5 ppm, sulfate (SO42-): ≤0.001%, nitrate (NO3-): ≤0.001% | anion traces - | anion traces chloride (Cl-): ≤5 mg/kg, nitrate (NO3-): ≤10 mg/kg, sulfate (SO42-): ≤10 mg/kg | anion traces chloride (Cl-): ≤5 ppm, nitrate (NO3-): ≤0.001%, sulfate (SO42-): ≤0.001% |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 431311-250G | 04061832108193 |
| 431311-50G | 04061832108209 |
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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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