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Merck

NX0412

Nitric Acid

Synonym(s):

Nitric acid solution, Hydrogen Nitrate, Azotic Acid,Aqua Fortis, Aquafortis

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About This Item

Empirical Formula (Hill Notation):
HNO3
CAS Number:
Molecular Weight:
63.01
UNSPSC Code:
12352301
MDL number:

InChI key

GRYLNZFGIOXLOG-UHFFFAOYSA-N

InChI

1S/HNO3/c2-1(3)4/h(H,2,3,4)

SMILES string

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

vapor pressure

9.4 hPa ( 20 °C)

concentration

64.8-65.2% HNO3

impurities

≤0.005 ppm Arsenic (As)
≤0.08 ppm Chloride (Cl)
≤0.08 ppm Sulfate (SO4)
≤0.2 ppm Heavy metals (as Pb)
≤0.2 ppm Iron (Fe)
≤0.2 ppm Phosphate (PO4)
≤1 ppm Fluorine (F)
≤5 ppm Nonvolatile matter

pH

<1 (20 °C in H2O)

bp

121 °C/1013 hPa

mp

-32 °C

shipped in

ambient

storage temp.

room temp

Quality Level

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Analysis Note

Arsenic (As): 0.005ppm max
Assay: 64.8-65.2% by wt.
Chloride (Cl): 0.08ppm max
Fluorine (F): 1ppm max
Heavy metals (as Pb): 0.2ppm max
Iron (Fe): 0.2ppm max
Nonvolatile matter: 5ppm max
Phosphate (PO4): 0.2ppm max
Sulfate (SO4): 0.08ppm max

signalword

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


Certificates of Analysis (COA)

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