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重要文件

215996

Sigma-Aldrich

磷酸铵 二元

ACS reagent, ≥98%

同義詞:

磷酸二铵, 磷酸氢二铵, 磷酸氢铵

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About This Item

線性公式:
(NH4)2HPO4
CAS號碼:
分子量::
132.06
EC號碼:
MDL號碼:
分類程式碼代碼:
12352300
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent

化驗

≥98%

形狀

crystals or chunks
powder

雜質

≤0.005% NH4OH pptd.
≤0.005% insolubles

pH值

7.7-8.1 (25 °C, 5%)

mp

155 °C (dec.) (lit.)

負離子痕跡

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.003%
sulfate (SO42-): ≤0.01%

正離子痕跡

Ca: 0.001%
Fe: ≤0.001%
K: ≤0.005%
Mg: 0.0005%
Na: ≤0.005%
heavy metals (as Pb): ≤0.001%

SMILES 字串

N.N.OP(O)(O)=O

InChI

1S/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)

InChI 密鑰

MNNHAPBLZZVQHP-UHFFFAOYSA-N

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一般說明

磷酸铵二盐是一种水溶性磷酸铵盐。它是磷肥的关键成分。通常被用作胶合板、纸张和织物的阻燃剂,以及旧建筑中降解的碳酸盐材料的缓蚀剂。 [1]

應用

磷酸二酸铵可作为催化剂用于:
  • 通过三组分缩合反应合成四氢苯并[b]芘衍生物。
  • 无溶剂 Biginelli 反应。
  • 通过吲哚衍生物与芳香或脂肪醛的无溶剂反应合成吲哚基甲烷。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析證明 (COA)

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Questions

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  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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