84380

Nitric acid

puriss. p.a., ≥65% (T)

• Empirical Formula (Hill Notation): HNO₃
• CAS Number: 7697-37-2
• Molecular Weight: 63.01
• UNSPSC Code: 12352106
• eCl@ss: 38060304
• PubChem Substance ID: 329769297
• NACRES: NA.21
• MDL number: MFCD00011349
• Assay: ≥65% (T)
• Form: liquid

Properties

• InChI: 1S/HNO3/c2-1(3)4/h(H,2,3,4)
• InChI key: GRYLNZFGIOXLOG-UHFFFAOYSA-N
• vapor pressure: 8 mmHg ( 20 °C)
• 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 (PO₄^3-): ≤0.5 mg/kg, sulfate (SO₄^2-): ≤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: ≤0.01 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
• Quality Level: 100

Description

General description

Nitric acid (HNO₃) is a highly corrosive strong mineral acid. In HNO₃, nitrogen element exhibits +5 oxidation state.[1] 10%(v/v) nitric acid solution is useful for cleaning laboratory glasswares.[2] Reaction of HNO₃ with various original and synthetic mineral dust/mineral oxide surfaces was studied in a low-pressure Knudsen reactor operating at 298K.[3]

Application

Nitric acid (HNO₃) may be used in the following studies:

• Oxidation of multiwalled carbon nanotubes (MWCNTs).[4]
• Removal of transition metal catalyst from the single-walled carbon nanotubes (SWNTs) during the purification of SWNTs.[5]
• Trace determinations of Pb and Cd in aqueous medium by flame atomic absorption spectrometry.[2]
• Preparation of lead dioxide (PbO₂).[6]

Safety Information

• pictograms: GHS03,GHS06,GHS05
• signalword: Danger
• hcodes: H272,H290,H314,H331
• pcodes: P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A
• supp_hazards: EUH071
• Storage Class: 5.1B - Oxidizing hazardous materials
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable