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Merck
CN

59845

硫酸铵

analytical standard, for Nitrogen Determination According to Kjeldahl Method, traceable to NIST SRM 194

别名:

硫铵石

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关于此项目

线性分子式:
(NH4)2SO4
化学文摘社编号:
分子量:
132.14
PubChem Substance ID:
eCl@ss:
38030408
UNSPSC Code:
85151701
NACRES:
NA.24
EC Number:
231-984-1
MDL number:
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grade

analytical standard

Quality Level

assay

≥99.5%

quality

traceable to NIST SRM 194

shelf life

limited shelf life, expiry date on the label

impurities

21.20%±0.10% total Kjeldahl nitrogen

loss

≤0.1% loss on drying, 110°C

pH

5.0-6.0 (25 °C, 1 M in H2O)

mp

>280 °C (dec.) (lit.)

solubility

soluble, clear, colorless

density

1.77 g/mL at 25 °C (lit.)

format

neat

SMILES string

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

InChI

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

InChI key

BFNBIHQBYMNNAN-UHFFFAOYSA-N

Application

硫酸铵可用作标准溶液,作为凯氏定氮法中的参照以准确测定乳制品中的蛋白含量。


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存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Goding.WJ
Monoclonal Antibodies: Principles and Practice, (3) (1996)
James F Hunter et al.
Environmental science & technology, 48(17), 10227-10234 (2014-08-06)
A large number of organic species emitted into the atmosphere contain cycloalkyl groups. While cyclic species are believed to be important secondary organic aerosol (SOA) precursors, the specific role of cyclic moieties (particularly for species with multiple or fused rings)
Kazunori Sugiura et al.
Biochemical and biophysical research communications, 457(3), 242-248 (2015-01-17)
Intracellular redox state is a critical factor for fundamental cellular functions, including regulation of the activities of various metabolic enzymes as well as ROS production and elimination. Genetically-encoded fluorescent redox sensors, such as roGFP (Hanson, G. T., et al. (2004))



全球贸易项目编号

货号GTIN
59845-25G04061835561025