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Merck

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5.43834

Ammonium acetate

for HPLC LiChropur™

Synonym(s):

Ammonium acetate

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About This Item

Linear Formula:
NH4CH3COO
CAS Number:
Molecular Weight:
77.08
UNSPSC Code:
12352106
EC Index Number:
211-162-9
NACRES:
NA.21
MDL number:
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Quality Segment

agency

suitable for ASTM® 7968, suitable for ASTM® 7979, suitable for DIN 38407-42, suitable for EPA 1633, suitable for EPA 533, suitable for EPA 537.1, suitable for EPA 8327, suitable for EPA ACB B21-02, 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 15968-2010

reg. compliance

suitable for FDA C-010.02

form

solid

technique(s)

HPLC: suitable

pH

6.7-7.3 (25 °C, 50 g/L in H2O)

mp

114 °C

solubility

1480 g/L

density

1.17 g/cm3 at 20 °C

bulk density

410 kg/m3

application(s)

PFAS testing

storage temp.

15-25°C

SMILES string

[NH4]OC(=O)C

InChI

1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3

InChI key

USFZMSVCRYTOJT-UHFFFAOYSA-N

General description

Ammonium acetate is commonly used as a buffer in high-performance liquid chromatography (HPLC). It is used as a mobile phase to develop a novel speciation methodology applicable to urine samples using IEC-ICP-MS.

Application

Ammonium acetate can be used as a:
  • Mobile phase in the derivatization reaction to enhance the detection and separation of glyphosate and aminomethylphosphonic acid (AMPA) using reversed-phase liquid chromatography (RPLC).
  • Buffer component in the mobile phase of the Hydrophilic Interaction Liquid Chromatography (HILIC) method for the separation and determination of polar lipid classes.

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany


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Storage Class

11 - Combustible Solids

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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