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
About This Item
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Product Name
Ammonium acetate, ≥99.99% trace metals basis
InChI key
USFZMSVCRYTOJT-UHFFFAOYSA-N
InChI
1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
SMILES string
N.CC(O)=O
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
Quality Level
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Related Categories
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This Item | 372331 | 32301-M | 32301 |
|---|---|---|---|
| form solid | form crystalline, solid | form solid | form 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 ≥98% |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| grade for inorganic trace analysis | grade - | grade ACS reagent, puriss. p.a. | grade ACS reagent, puriss. p.a. |
| 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 mg/kg, nitrate (NO3-): ≤10 mg/kg, sulfate (SO42-): ≤10 mg/kg |
Application
General description
Legal Information
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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