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31119-M

Sigma-Aldrich

硫酸铵

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

同義詞:

硫铵石

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About This Item

線性公式:
(NH4)2SO4
CAS號碼:
分子量::
132.14
EC號碼:
MDL號碼:
分類程式碼代碼:
12352314
eCl@ss:
38030408
PubChem物質ID:
NACRES:
NA.21

等級

ACS reagent
puriss. p.a.

品質等級

agency

USP/NF
reag. ISO
reag. Ph. Eur.

化驗

≥99%

形狀

crystalline

雜質

≤0.005% in water insoluble matters
≤5 ppm heavy metals (by ICP-OES)

燃燒殘留物

≤0.005% (as SO4)

損耗

≤0.1% loss on drying, 110 °C

pH值

5-6 (25 °C, 5%)

mp

>280 °C (dec.) (lit.)

密度

1.77 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤3 mg/kg
nitrate (NO3-): ≤10 mg/kg
phosphate (PO43-): ≤5 mg/kg

正離子痕跡

As: ≤0.00002%
Ca: ≤0.001%
Cd: ≤0.0001%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤2 mg/kg
K: ≤0.005%
Mg: ≤0.0002%
Mn: ≤0.0005%
Na: ≤0.002%
Ni: ≤0.0005%
Pb: ≤0.0002%
Zn: ≤0.0001%

SMILES 字串

N.N.OS(O)(=O)=O

InChI

1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI 密鑰

BFNBIHQBYMNNAN-UHFFFAOYSA-N

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一般說明

Ammonium sulfate is an inorganic salt that can be produced from the direct neutralization of sulfuric acid with ammonia.

應用

Ammonium sulfate can be used as a nucleating agent in the preparation of fatty acid microcapsules.

儲存類別代碼

13 - Non 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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Ammonium compounds
Kirk-Othmer Encyclopedia of Chemical Technology (2000)
Microencapsulation of a fatty acid with Poly (melamine-urea-formaldehyde
Konuklu Y, et al.
Energy Conversion and Management , 80, 382-390 (2014)
Separation of proteins by ammonium sulfate gradient solubilization.
T P King
Biochemistry, 11(3), 367-371 (1972-02-01)
D A DePasquale et al.
Applied and environmental microbiology, 56(12), 3711-3717 (1990-12-01)
In this study we examined the mechanism by which ammonium bicarbonate inhibits mycotoxigenic fungi. Elevated extracellular pH, alone, was not responsible for the antifungal activity. Although conidia of Penicillium griseofulvum and Fusarium graminearum had internal pH (pHi) values as high
Neutron-Diffraction Study of the Structures of Ferroelectric and Paraelectric Ammonium Sulfate.
Schlemper EO, et al.
J. Chem. Phys. , 44(12), 4498-4509 (1966)

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