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Safety Information

309079

Sigma-Aldrich

Nitric acid

red, fuming, HNO3 >90 %

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About This Item

Empirical Formula (Hill Notation):
HNO3
CAS Number:
Molecular Weight:
63.01
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

8 mmHg ( 20 °C)

Quality Level

Assay

5.0-10.0% (% N2O3, titration)

form

liquid

composition

HNO3, >90%

impurities

5-10% dissolved oxides as N2O3

color

red

pH

<1 (20 °C)

bp

120.5 °C (lit.)

density

1.48 g/mL at 20 °C (lit.)

storage temp.

2-8°C

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 an oxidizing agent used in the oxidation and nitration of organic molecules.

Application

Nitric acid can be used as:
  • A catalyst for the aerobic conversion of benzyl ethers to benzaldehydes.
  • An oxidant for the oxidative bromination of activated aromatic compounds using alkali metal bromide salts to synthesize corresponding bromo-derivatives.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 2 - Skin Corr. 1

Supplementary Hazards

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 2

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

309079-BULK:
309079-100ML:
309079-500ML:4548173132877
309079-VAR:


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Hu H, et al.
The Journal of Physical Chemistry B, 107(5), 13838-13842 (2003)
Oxidation of multiwalled carbon nanotubes by nitric acid.
Rosca ID, et al.
Carbon, 43(15), 3124-3131 (2005)
Heterogeneous reactivity of gaseous nitric acid on Al2O3, CaCO3, and atmospheric dust samples: A Knudsen cell study.
Hanisch F and Crowley JN.
The Journal of Physical Chemistry A, 105(13), 3096-3106 (2001)

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