84727
硫酸
for the determination of nitrogen, ≥97.0%
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线性分子式:
H2SO4
化学文摘社编号:
分子量:
98.08
UNSPSC Code:
41115710
NACRES:
NA.21
PubChem Substance ID:
EC Number:
231-639-5
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
≥97.0%
Form:
liquid
InChI key
QAOWNCQODCNURD-UHFFFAOYSA-N
InChI
1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
agency
suitable for SM 4500 - NH3
vapor density
<0.3 (25 °C, vs air)
vapor pressure
1 mmHg ( 146 °C)
Quality Level
description
for inorganic trace analysis
assay
≥97.0%
form
liquid
quality
for the determination of nitrogen
impurities
≤0.0005% total nitrogen (N)
ign. residue (900 °C)
≤0.0005%
color
clear
bp
~290 °C (lit.)
density
1.840 g/mL at 25 °C (lit.)
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General description
Sulfuric acid can be produced by dry distillation of iron sulfate heptahydrate, copper sulfate pentahydrate. When these compounds were heated they decompose to form iron and copper oxides eliminating water and sulphur trioxide which combine together to form dilute solution of sulphuric acid. It is suitable as dehydrating agent, catalyst, active reactant in chemical industry. It is also suitable to control pH of saline solutions to strong fuming acids.
Application
Sulfuric acid may be used as digestive reagent in Kjeldahl method to determine nitrogen.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
存储类别
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
新产品
此项目有
Navin G. Ashar, Kiran R. Golwalkar
A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents (2013)
Nitrogen determination by a continuous digestion and analysis system.
Ferrari, Andres.
Annals of the New York Academy of Sciences, 87, 792-800 (1960)
Francesco Riccobono et al.
Science (New York, N.Y.), 344(6185), 717-721 (2014-05-17)
Atmospheric new-particle formation affects climate and is one of the least understood atmospheric aerosol processes. The complexity and variability of the atmosphere has hindered elucidation of the fundamental mechanism of new-particle formation from gaseous precursors. We show, in experiments performed
Andreas Recke et al.
Journal of immunology (Baltimore, Md. : 1950), 193(4), 1600-1608 (2014-07-16)
Subepidermal autoimmune blistering dermatoses (AIBD) are prototypic autoantibody-mediated diseases. In epidermolysis bullosa acquisita (EBA), an autoimmune disease with severe and chronic skin blistering, autoantibodies are directed against type VII collagen. IgG is the predominant autoantibody isotype of EBA, the pathogenicity
João Almeida et al.
Nature, 502(7471), 359-363 (2013-10-08)
Nucleation of aerosol particles from trace atmospheric vapours is thought to provide up to half of global cloud condensation nuclei. Aerosols can cause a net cooling of climate by scattering sunlight and by leading to smaller but more numerous cloud
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