225711
Nitric acid
70%, purified by redistillation, ≥99.999% trace metals basis
Synonym(s):
Aqua fortis, Azotic acid, Hydrogen nitrate
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About This Item
Empirical Formula (Hill Notation):
HNO3
CAS Number:
Molecular Weight:
63.01
eCl@ss:
38060304
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22
MDL number:
Assay:
≥99.999% trace metals basis, 70%
Form:
liquid
vapor density
1 (vs air)
Quality Segment
vapor pressure
8 mmHg ( 20 °C)
assay
≥99.999% trace metals basis, 70%
form
liquid
purified by
redistillation
color
colorless
pH
<1.0
bp
120.5 °C (lit.)
density
1.413 g/mL at 20 °C (lit.)
functional group
nitrate
SMILES string
O[N+]([O-])=O
InChI
1S/HNO3/c2-1(3)4/h(H,2,3,4)
InChI key
GRYLNZFGIOXLOG-UHFFFAOYSA-N
General description
Nitric acid is generally used as a primary reagent for the nitration of organic molecules. It is also used as a strong oxidizing agent in organic synthesis to perform the oxidative transformations.
Application
Nitric acid used as a reagent in:
- The nitration of aromatic compounds, aromatic heterocycles, alkenes, active methylene carbons, etc.
- Selective oxidation of organosulfur compounds to corresponding sulfoxides using a solid acid catalyst.
- The oxidation of alcohols, aldehydes, esters, and heteroatoms.
- The aromatization and dehydrogenation reactions.
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A
supp_hazards
Storage Class
5.1B - Oxidizing hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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