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Merck
CN

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:
7697-37-2
Molecular Weight:
63.01
MDL number:
MFCD00011349
UNSPSC Code:
12352301
eCl@ss:
38060304
PubChem Substance ID:
24853516
NACRES:
NA.22

Key Documents

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vapor density

1 (vs air)

Quality Level

100

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

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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.

Signal Word

Danger

Hazard Statements

H272,H290,H314,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A

Supplementary Hazards

EUH071

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

易制爆化学品
危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ2850
MKCX5071
MKCX4281
MKCX1203
MKCV5128

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Chemoselective sulfoxidation by H2O2 or HNO3 using a phosphate impregnated titania catalyst
Bharadwaj SK, et al.
Tetrahedron Letters, 50(27), 3767-3771 (2009)
Trace metal contents of three tricalcium silicate materials: MTA Angelus, Micro Mega MTA and Bioaggregate
Kum KY,et al.
International Endodontic Journal, 47(7), 704-710 (2014)
Quantification of Sodium Accumulation in Arabidopsis thaliana Using Inductively Coupled Plasma Optical Emission Spectrometery (ICP-OES)
Choi WG and Gilroy S
Bio-protocol, 5(16) (2015)
Nitric acid in the presence of P2O5 supported on silica gel?a useful reagent for nitration of aromatic compounds under solvent-free conditions
Hajipour AR and Ruoho AE
Tetrahedron Letters, 46(48), 8307-8310 (2005)
Controlled nitration of anisole over HNO3/PO4/MoO3/SiO2/solvent systems
Adamiak J
J. Mol. Catal. A: Chem., 407, 81-86 (2015)
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