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30709-M

Sigma-Aldrich

Nitric acid

puriss. p.a., reag. ISO, reag. Ph. Eur., ≥65%

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About This Item

Empirical Formula (Hill Notation):
HNO3
CAS Number:
7697-37-2
Molecular Weight:
63.01
MDL number:
MFCD00011349
UNSPSC Code:
12352106
PubChem Substance ID:
329753565
NACRES:
NA.21
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Agency

USP/NF
reag. ISO
reag. Ph. Eur.

Quality Level

100

vapor pressure

8 mmHg ( 20 °C)

description

for determinations with dithizone

grade

puriss. p.a.

Assay

≥65%

form

liquid

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-): ≤0.00005%
phosphate (PO43-): ≤0.00005%
sulfate (SO42-): ≤0.00005%

cation traces

Ag: ≤0.000001%
Al: ≤0.000005%
As: ≤0.000001%
Ba: ≤0.000001%
Be: ≤0.000001%
Bi: ≤0.00001%
Ca: ≤0.00001%
Cd: ≤0.000001%
Co: ≤0.000001%
Cr: ≤0.000002%
Cu: ≤0.000001%
Fe: ≤0.00001%
Ge: ≤0.000005%
Hg: ≤0.000001%
K: ≤0.000005%
Li: ≤0.000001%
Mg: ≤0.00001%
Mn: ≤0.000001%
Mo: ≤0.000002%
Na: ≤0.00005%
Ni: ≤0.000002%
Pb: ≤0.000001%
Sr: ≤0.000001%
Ti: ≤0.00001%
Tl: ≤0.000005%
V: ≤0.000001%
Zn: ≤0.000005%
Zr: ≤0.00001%

SMILES string

O[N+]([O-])=O

suitability

passes test for suitability for det. with dithizone

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

Application

Nitric acid (HNO3) may be used for the removal of transition metal catalyst from the single-walled carbon nanotubes (SWNTs) during the purification of SWNTs.[3] It may be used in the trace determinations of Pb and Cd in natural waters by flame atomic absorption spectrometry.[1]

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H290,H314,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Supplementary Hazards

EUH071

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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Certificates of Analysis (COA)

Lot/Batch Number
SDBB3154
SDBB2235
SDBB1196
STBL1995
STBL1308

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Eduardo Carasek et al.
Talanta, 56(1), 185-191 (2008-10-31)
The need for highly reliable methods for the determination of trace elements has been recognised in analytical chemistry and environmental science. A method for the trace analysis of Pb and Cd in natural waters is described. In a preconcentration step

Questions

  1. Hi, I cannot find the type of package - glass, FEP ... Can you clarify that? Can this type of acid be used for Trace elemental analysis?

    1 answer

    1. This product is packaged in amber glass bottles. See the 'PROPERTIES' section above, under anion and cation traces, to review the elemental testing and specifications for this material. Yes, this product is suitable for use in trace metal analysis.

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