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Safety Information

225711

Sigma-Aldrich

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

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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

FSL

Group 6: Oxidizing liquids
Nitric acid
Hazardous rank I

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

225711-VAR:
225711-475ML:4548173119120
225711-475ML-PW:
225711-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ4177
MKCQ1009
MKCP7739
MKCP1768
MKCN5701

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