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Merck

431311

Sigma-Aldrich

乙酸铵

for inorganic trace analysis, ≥99.99% trace metals basis

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$216.00
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国内现货,预计发货时间2025年4月10日详情


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50 G
$216.00
250 G
$777.00

About This Item

线性分子式:
CH3CO2NH4
CAS号:
分子量:
77.08
Beilstein:
4186741
EC 号:
MDL编号:
UNSPSC代码:
12352300
eCl@ss:
39021908
PubChem化学物质编号:
NACRES:
NA.21

$216.00


国内现货,预计发货时间2025年4月10日详情


获取大包装报价

等级

for inorganic trace analysis

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

管理合规性

suitable for FDA C-010.02

蒸汽压

<0.001 hPa

方案

≥99.99% trace metals basis

表单

solid

杂质

≤0.005% insolubles
<100 ppm total metallic impurities

pH值(酸碱度)

6.7-7.3 (25 °C, 5% in water)
6.7-7.3

mp

110-112 °C (dec.) (lit.)

溶解性

water: soluble 1,480 g/L at 4 °C

痕量阴离子

chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.001%
sulfate (SO42-): ≤0.001%

痕量阳离子

Fe: ≤5 ppm
heavy metals: ≤5 ppm

SMILES字符串

N.CC(O)=O

InChI

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

InChI key

USFZMSVCRYTOJT-UHFFFAOYSA-N

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相关类别

一般描述

乙酸铵(NH4C2H3O2)是水溶性的吸湿性铵盐。它是环保型材料且价格低廉,[1] 可通过用冰醋酸与氨或碳酸铵反应来制备。它常被用于染料工业以及用作肉类防腐剂。[2]它可用于制备溶胶-凝胶甲醛传感器,以检测空气样品中的甲醛。[3]乙酸铵的中子能量增益谱已被记录,其中包含原子运动的数据。[4]据报道,在无溶剂和微波条件下,可从亚硫酸氢盐加成产物和二乙酸酯再生醛。[1]
符合ACS试剂规定。

应用

乙酸铵可用作HPLC分析的流动相组分。[5]
它可用于合成:
  • 菲咯啉衍生物,用作防腐剂。[6]
  • 高度取代咪唑。[7]
  • 2,4-二芳基多氢喹啉衍生物。[8]

法律信息

ASTM is a registered trademark of American Society for Testing and Materials

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Questions

1–2 of 2 Questions  
  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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