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About This Item
Empirical Formula (Hill Notation):
HNO3
CAS Number:
Molecular Weight:
63.01
MDL number:
UNSPSC Code:
12352106
eCl@ss:
38060304
PubChem Substance ID:
NACRES:
NA.21
vapor pressure
8 mmHg ( 20 °C)
Quality Level
grade
puriss. p.a.
Assay
≥65% (T)
form
liquid
ign. residue
≤0.0005% (as SO4)
pH
<1.0
bp
120.5 °C (lit.)
density
1.37-1.41 g/mL at 20 °C (lit.)
anion traces
chloride (Cl-): ≤0.5 mg/kg
phosphate (PO43-): ≤0.5 mg/kg
sulfate (SO42-): ≤1 mg/kg
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General description
Nitric acid (HNO3) is a highly corrosive strong mineral acid. In HNO3, nitrogen element exhibits +5 oxidation state. 10%(v/v) nitric acid solution is useful for cleaning laboratory glasswares. Reaction of HNO3 with various original and synthetic mineral dust/mineral oxide surfaces was studied in a low-pressure Knudsen reactor operating at 298K.
Application
Nitric acid (HNO3) may be used in the following studies:
- Oxidation of multiwalled carbon nanotubes (MWCNTs).
- Removal of transition metal catalyst from the single-walled carbon nanotubes (SWNTs) during the purification of SWNTs.
- Trace determinations of Pb and Cd in aqueous medium by flame atomic absorption spectrometry.
- Preparation of lead dioxide (PbO2).
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A
Supplementary Hazards
Storage Class Code
5.1B - Oxidizing hazardous materials
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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