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Merck
CN

30709

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:
Molecular Weight:
63.01
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352106
MDL number:
eCl@ss:
38060304
Assay:
≥65%
Form:
liquid
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Quality Level

agency

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

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)

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-): ≤0.5 mg/kg

SMILES string

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

cation traces

Ag: ≤0.01 mg/kg, Al: ≤0.05 mg/kg, As: ≤0.01 mg/kg, Ba: ≤0.01 mg/kg, Be: ≤0.01 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.1 mg/kg, Cd: ≤0.01 mg/kg, Co: ≤0.01 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.01 mg/kg, Fe: ≤0.1 mg/kg, Ge: ≤0.05 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, Ti: ≤0.1 mg/kg, Tl: ≤0.05 mg/kg, V: ≤0.01 mg/kg, Zn: ≤0.05 mg/kg, Zr: ≤0.1 mg/kg

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

General description

Nitric acid (HNO3) is a highly corrosive strong mineral acid. 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.
A yellow coloration of the bottle has no influence whatsoever on the product quality.

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. It may be used in the trace determinations of Pb and Cd in natural waters by flame atomic absorption spectrometry.

Other Notes

The article number 30709-4X2.5L will be discontinued. Please order the single bottle 30709-2.5L which is physically identical with the same exact specifications.


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Danger

Hazard Classifications

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

supp_hazards

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

易制爆化学品
危险化学品

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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
Nitric acid purification of single-walled carbon nanotubes.
Hu H, et al.
The Journal of Physical Chemistry B, 107(5), 13838-13842 (2003)
Heterogeneous reactivity of gaseous nitric acid on Al2O3, CaCO3, and atmospheric dust samples: A Knudsen cell study.
Hanisch F and Crowley JN.
The Journal of Physical Chemistry A, 105(13), 3096-3106 (2001)



Global Trade Item Number

SKUGTIN
30709-1L04061826673270
30709-1L-GL04061837865527
30709-2.5L04061837865541
30709-2.5L-GL04061837865558
30709-4X2.5L04061826673287
30709-4X2.5L-GL04061837865572