Fuming Nitric Acid
Fuming nitric acid is a highly corrosive, strong oxidizing liquid, typically pale yellow to reddish-brown in color due to dissolved nitrogen dioxide. It emits choking fumes and is primarily used in nitration reactions, metal processing, and semiconductor manufacturing.
Packing:
Typically available in 35kg/drum or 200kg/drum, in suitable corrosion-resistant containers.
Applications:
Fuming nitric acid is a critical reagent with several key industrial applications:
- Nitration Reactions: Manufacture of explosives, dyes, and pharmaceutical intermediates.
- Semiconductor Industry: Used for cleaning and etching of silicon wafers.
- Metal Treatment: Pickling and passivation of stainless steel and other metals.
- Analytical Chemistry: Used as a strong oxidizing agent and solvent.
Hazard Identification:
Fuming nitric acid is a strong oxidizer, highly corrosive, and toxic by inhalation. The main hazards are:
- GHS Hazard Pictograms:
- Signal Word: Danger
- Hazard Statements:
- H271: May cause fire or explosion; strong oxidizer.
- H290: May be corrosive to metals.
- H314: Causes severe skin burns and eye damage.
- H330: Fatal if inhaled.
- H335: May cause respiratory irritation.
Precautionary Statements:
To handle fuming nitric acid safely, the following precautions are recommended:
- Prevention:
- P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- P220: Keep/Store away from clothing/combustible materials.
- P221: Take any precaution to avoid mixing with combustibles.
- P260: Do not breathe mist/vapours/spray.
- P264: Wash hands thoroughly after handling.
- P270: Do not eat, drink or smoke when using this product.
- P271: Use only outdoors or in a well-ventilated area.
- P280: Wear protective gloves/protective clothing/eye protection/face protection.
- P284: [In case of inadequate ventilation] wear respiratory protection.
- Response:
- P301+P310+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Immediately call a POISON CENTER/doctor.
- P303+P361+P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
- P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P310: Immediately call a POISON CENTER/doctor.
- P321: Specific treatment (see first aid instructions on this label).
- P363: Wash contaminated clothing before reuse.
- P370+P378: In case of fire: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Do not use dry chemical or foam if product is involved (oxidizer). Refer to appropriate measures for surrounding fire.
- Storage:
- P403+P233: Store in a well-ventilated place. Keep container tightly closed.
- P403+P235: Store in a well-ventilated place. Keep cool.
- P405: Store locked up.
- P406: Store in corrosive resistant container with a resistant inner liner.
- Disposal:
- P501: Dispose of contents/container in accordance with local/regional/national/international regulations.
REACH CERTIFICATE
| Field | Details |
|---|---|
| Substance Name | Fuming nitric acid |
| EC/List Number | 231-714-2 |
| CAS Number | 7697-37-2 |
| Registration Number | (Specify Registration Number Here) |
| Registration Date | (Specify Registration Date Here) |
| Tonnage Band | >1000 tonnes/year |
| Registration Type | Full Registration |
| EC/List Name | Nitric acid |
| Current Only Representative | Various ORs / Joint Submission |
| Company UID | (Not publicly available for joint submissions) |
