The purity of electronic grade nitric acid is very high, usually at 99.999% (5N) or higher. CAS 7697-37-2 EC 231-714-2| Chemical Reagents net

It is a strong acid used extensively in electronics, chemical synthesis, and metal processing. Electronic-grade nitric acid has high purity, making it suitable for precise applications. Safety precautions must be followed to avoid hazards to health and the environment.

General Information

CAS Number: 7697-37-2
Molecular Weight: 63.01
Molecular Formula: HNO₃
MDL Number: MFCD00011349
EC Number: 231-714-2
Grade: Electronic UP Grade
Brand: Keshih
Packaging: 500 ml × 20 bottles/case

General Information

Nitric acid is a strong acid widely used in electronics, chemical reactions, cleaning, and etching applications in high-tech industries. Electronic-grade nitric acid is used in semiconductor manufacturing to ensure the purity and quality of the products.

Physical Properties

Appearance: Colorless liquid
Odor: Pungent
Boiling Point: 83°C (176°F)
Melting Point: -42°C (-44°F)
Density: 1.41 g/cm³ (20°C)
Solubility: Completely miscible with water

Chemical Properties

Acidity: Strong acid
Reactivity: Reacts with most metals, bases, and alkaline earth metals to produce the corresponding nitrates and release hydrogen gas; can oxidize many organic substances.

   O
   ||
H-O-N^+ 
   |
   O^-

Quality inspection report

| Item   | Nitric Acid       |
|--------|-------------------|
| Specification | Electronic UPS Grade |
| Batch Number  | 2022111001        |
| Molecular Formula | HNO3            |
| Molecular Weight | 63.01            |
| Batch Size     | 8000 kg           |
| Inspection Unit | Production Department |
| Sample Category | Inorganic         |
| Report Date     | 2022.11.12        |
| Inspection Basis | Enterprise Standard |

| Test Item                       | Standard Requirement | Measured Result |
|---------------------------------|----------------------|-----------------|
| Content (%)                     | 68.0 – 70.0          | 68.5            |
| Appearance                      | Colorless, transparent liquid | Colorless, transparent liquid |
| Color (Blackness Units)         | ≤10                  | <10             |
| Residue After Ignition (as SO4), ppb | ≤3000             | 1800            |
| Particles (≥0.2μm), count/mL    | ≤200                 | <200            |
| Particles (≥0.5μm), count/mL    | ≤10                  | <10             |
| Chloride (Cl), ppb              | ≤200                 | <200            |
| Sulfate (SO4), ppb               | ≤500                 | <500            |
| Phosphate (PO4), ppb             | ≤200                 | <200            |
| Boron (B), Lithium (Li), Sodium (Na), ppb | ≤1           | <1              |
| Magnesium (Mg), Aluminum (Al), Potassium (K), ppb | ≤1     | <1              |
| Calcium (Ca), Titanium (Ti), Chromium (Cr), ppb | ≤1      | <1              |
| Manganese (Mn), Iron (Fe), Cobalt (Co), ppb | ≤1         | <1              |
| Nickel (Ni), Copper (Cu), Zinc (Zn), ppb | ≤1            | <1              |
| Gallium (Ga), Arsenic (As), Molybdenum (Mo), ppb | ≤1     | <1              |
| Silver (Ag), Cadmium (Cd), Indium (In), ppb | ≤1        | <1              |
| Lead (Pb), Bismuth (Bi), ppb      | ≤1                  | <1              |
| Tin (Sn), Antimony (Sb), Barium (Ba), ppb | ≤1           | <1              |
| Platinum (Pt), Gold (Au), ppb     | ≤1                  | <1              |

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