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:
产品名称
硫酸铵, analytical standard, for Nitrogen Determination According to Kjeldahl Method, traceable to NIST SRM 194
InChI key
BFNBIHQBYMNNAN-UHFFFAOYSA-N
InChI
1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
SMILES string
N.N.OS(O)(=O)=O
grade
analytical standard
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
Quality Level
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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。
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Goding.WJ
Monoclonal Antibodies: Principles and Practice, (3) (1996)
Simon Gareth Broadley et al.
Acta crystallographica. Section D, Biological crystallography, 68(Pt 11), 1450-1459 (2012-10-24)
MshB, a zinc-based deacetylase, catalyses a step in the mycothiol biosynthetic pathway that involves the deacetylation of 1-O-(2-acetamido-2-deoxy-α-D-glucopyranosyl)-D-myo-inositol (GlcNAc-Ins), via cleavage of an amide bond, to 1-O-(2-amino-2-deoxy-α-D-glucopyranosyl)-D-myo-inositol (GlcN-Ins) and acetate. In this study, MshB was expressed, purified and crystallized. A
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))
James F Hunter et al.
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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)
Xiangyao Liu et al.
Carbohydrate polymers, 92(1), 659-661 (2012-12-12)
Cellulose fibers were engineered by in situ oxidative polymerization of aniline using ammonium persulfate as oxidant/initiator. The polyaniline/cellulose fiber composite was used for the treatment of Cr(VI)-contaminated water, and its effect was evaluated. Under the conditions studied, the composite exhibited
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