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Nitric Acid 70% Solution, Semiconductor/ Electronic Grade — representative laboratory stock photo, not the actual product or supplied packaging

Acids

Nitric Acid 70% Solution, Semiconductor/ Electronic Grade

Specially Produced For The Electronic Industry

Article code
NAS70
CAS
7697-37-2
Grade
Semiconductor/Electronic Grade
Purity
68-70%
Category
Acids
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Properties

Article / SKU
NAS70
CAS
7697-37-2
Synonyms
Hydrogen nitrate, Aqua fortis, Azotic acid, Salpetersaeure, Nitrooxidanyl
Assay
68-70%
PubChem ID
944
Grade
Semiconductor/Electronic Grade
Color
Max 10
Physical form
Liquid
Appearance
Clear to pale yellow
Odor
Strong acrid
pH
0.1 (1.0N solution)
Melting point
-41°C
Boiling Point
120.5°C
Solubility
Soluble
Molecular formula
HNO 3
Molecular weight
63.013
Arsenic (As)
Max 0.005 ppm
Autoship Available
Yes
Cadmium (Cd)
Max 0.5 ppm
Calcium (Ca)
Max 0.5 ppm
Chloride (Cl)
Max 0.5 ppm
Heavy metals
Max 0.2 ppm
Iron (Fe)
Max 0.2 ppm
Lead (Pb)
Max 0.2 ppm
Loss on ignition
Max 2 ppm
Magnesium (Mg)
Max 1 ppm
Phosphate (PO4)
Max 0.2 ppm
Pillar
High Purity
Sodium (Na)
Max 1 ppm
Sulfate (SO4)
Max 0.5 ppm
Viscosity
2.0 cPs

Packaging options — size and article

SizeArticle / SKU
500mlNAS70-500ML
6 x 500ml CaseNAS70-500MLCS
2.5LNAS70-2.5L
4 x 2.5L CaseNAS70-2.5LCS

Packaging options

  • 500ml
  • 6 x 500ml Case
  • 2.5L
  • 4 x 2.5L Case

Details

Nitric Acid 70% Solution, Semiconductor/Electronic Grade

Nitric Acid 70 percent semiconductor grade is used in manufacturing processes serving as a chemical bath for cleaning silicon wafers . One of its properties is the elimination of particles and contaminants from the semiconductor surfaces after the etching process. In addition, it enhances the surface smoothness, flatness and removes the oxide layer from the surfaces of semiconductors.

This grade exceeds the requirements of Federal Standard A-A-59105 (formerly O-N-350), designed to meet the standards that the SEMI manufacturing industry sets, for electronic uses . The nitrogen-based chemical semiconductor grade allows a broad application of Nitric Acid 70% Solution in various industries, such as solar power, LCD panels, and others.

Common Uses and Applications

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