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84378 Sigma-Aldrich

Nitric acid

puriss. p.a., 65% (Hg ≤0.0000005%), ≥65% (T)

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Properties

Related Categories Acids, Acids & Bases, Acids, Mercury-free and Arsenic-free, Analytical Reagents, Analytical Reagents for General Use,
vapor pressure   8 mmHg ( 20 °C)
InChI Key   GRYLNZFGIOXLOG-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥65% (T)
ign. residue   ≤0.0005% (as SO4)
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
cation traces   Ag: ≤0.01 mg/kg
  Al: ≤0.05 mg/kg
  As: ≤0.01 mg/kg
  Ba: ≤0.01 mg/kg
  Bi: ≤0.1 mg/kg
  Ca: ≤0.5 mg/kg
  Cd: ≤0.01 mg/kg
  Co: ≤0.01 mg/kg
  Cr: ≤0.02 mg/kg
  Cu: ≤0.01 mg/kg
  Fe: ≤0.2 mg/kg
  Hg: ≤0.005 mg/kg
  K: ≤0.05 mg/kg
  Li: ≤0.01 mg/kg
  Mg: ≤0.1 mg/kg
  Mn: ≤0.01 mg/kg
  Mo: ≤0.02 mg/kg
  Na: ≤0.5 mg/kg
  Ni: ≤0.02 mg/kg
  Pb: ≤0.01 mg/kg
  Sr: ≤0.01 mg/kg
  Tl: ≤0.05 mg/kg
  Zn: ≤0.05 mg/kg

Description

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).

Used for the decomposition of organic and inorganic samples for det. of mercury

Packaging

1, 2.5 L in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Corrosive to the respiratory tract.
RIDADR 
UN2031 - class 8 (5.1) - PG 2 - IATA PAX forbidden - Nitric acid >=65% - <= 70%
WGK Germany 
2

Documents

Certificate of Analysis

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Protocols & Articles

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Peer-Reviewed Papers
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References

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