Description
438073 Sigma-Aldrich
Nitric acid
ACS reagent, 70%
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CAS Number 7697-37-2
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Empirical Formula (Hill Notation) HNO3
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Molecular Weight 63.01
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EC Number 231-714-2
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MDL number MFCD00011349
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eCl@ss 38060304
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PubChem Substance ID 329756406
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NACRES NA.21
Description
General description
Nitric acid (HNO3) is a highly corrosive mineral acid.[1][2] It is usually utilized for abstracting transition metal catalyst from single-walled carbon nanotubes (SWNTs) in order to purify them.[3] The effect of nitric acid on the oxidation of multiwalled carbon nanotubes (MWCNTs) has been investigated by sample weight, Raman spectrum, solubility, morphology and alignment examinations.[4]
Application
Nitric acid was used to increase the number of acid sites by altering the surface of activated carbon.[5]
It may be used:
• In combination with acetic anhydride and zeolite catalysts for the preparation of p-nitrotoluene with high regioselectivity.[6]
• In the pretreatment of rice straw for enhanced production of xylose.[7]
• To minimize the extent of cation ordering in LiNi0.5Mn1.5O4, a transition metal-substituted spinel material, by surface treatment.[8]
Packaging
100 mL in glass bottle
2.2 L in poly bottle
2.5, 6×2.5 L in PVC-coated bottle
500, 6×500 mL in PVC-coated bottle
Other Notes
SKU-Pack sizes with -P are packaged in poly bottles
Properties
Related Categories | ACS Grade Acids & Bases, Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use, |
Quality Level | 200 |
grade | ACS reagent |
vapor pressure | 8 mmHg ( 20 °C) |
assay | 68.0-70.0% (ACS specification) |
70% | |
ign. residue | ≤5 ppm |
color | APHA: ≤10 |
bp | 120.5 °C (lit.) |
density | 1.413 g/mL at 20 °C (lit.) |
anion traces | chloride (Cl-): ≤0.5 ppm |
sulfate (SO42-): ≤1 ppm | |
cation traces | As: ≤0.01 ppm |
Fe: ≤0.2 ppm | |
heavy metals (as Pb): ≤0.2 ppm | |
SMILES string | O[N+]([O-])=O |
InChI | 1S/HNO3/c2-1(3)4/h(H,2,3,4) |
InChI key | GRYLNZFGIOXLOG-UHFFFAOYSA-N |