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
32301
Ammonium acetate
puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98%
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About This Item
Quality Segment
agency
reag. Ph. Eur.
vapor pressure
<0.001 hPa
grade
ACS reagent, puriss. p.a.
assay
≥98%
form
solid
impurities
≤0.005% KMnO4 red. matter (as O), ≤2% water (Karl Fischer), ≤5 mg/kg heavy metals (as Pb)
ign. residue
≤0.01%
pH
6.7-7.3 (25 °C, 5% in water)
mp
110-112 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, nitrate (NO3-): ≤10 mg/kg, sulfate (SO42-): ≤10 mg/kg
cation traces
Ca: ≤10 ppm, Cd: ≤2 ppm, Co: ≤5 ppm, Cr: ≤5 ppm, Cu: ≤2 ppm, Fe: ≤5 ppm, K: ≤50 ppm, Mg: ≤2 ppm, Mn: ≤5 ppm, Na: ≤50 ppm, Ni: ≤5 ppm, Pb: ≤2 ppm, Zn: ≤2 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
1 of 1
This Item | |||
|---|---|---|---|
| description puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98% | description ACS reagent, ≥97% | description LiChropur™, eluent additive for LC-MS | description ≥99.99% trace metals basis |
| form solid | form solid, powder | form solid | form solid |
| assay ≥98% | assay ≥97% | assay ≥99.0% (calc. on dry substance, T) | assay ≥99.99% trace metals basis |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| grade puriss. p.a., ACS reagent | grade ACS reagent | grade - | grade - |
| cation traces Ca: ≤10 ppm, Cd: ≤2 ppm, Cu: ≤2 ppm, Cr: ≤5 ppm, Mn: ≤5 ppm, Pb: ≤2 ppm, Fe: ≤5 ppm, Ni: ≤5 ppm, Zn: ≤2 ppm, Mg: ≤2 ppm, Na: ≤50 ppm, Co: ≤5 ppm, K: ≤50 ppm | cation traces Fe: ≤5 ppm, heavy metals: ≤5 ppm | cation traces As: ≤0.1 mg/kg, Mo: ≤1 mg/kg, Pb: ≤1 mg/kg, Mg: ≤1 mg/kg, Na: ≤5 mg/kg, Mn: ≤1 mg/kg, Al: ≤1 mg/kg, Ni: ≤1 mg/kg, K: ≤5 mg/kg, Li: ≤1 mg/kg, Cu: ≤1 mg/kg, Sr: ≤1 mg/kg, Ca: ≤5 mg/kg, Bi: ≤1 mg/kg, Zn: ≤1 mg/kg, Fe: ≤1 mg/kg, Ba: ≤1 mg/kg, Cr: ≤1 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg | cation traces heavy metals: ≤5 ppm, Fe: ≤5 ppm |
| mp 110-112 °C (dec.) (lit.) | mp 110-112 °C (dec.) (lit.) | mp 110-112 °C (dec.) (lit.) | mp 110-112 °C (dec.) (lit.) |
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Storage Class
11 - Combustible Solids
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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