Khemical Nitric Acid 35% - Poly Drum - 55 Gallon (4/Plt)
About this product
Khemical Nitric Acid 35% is a dilute aqueous nitric acid solution (35% HNO3 by weight), supplied in a polyethylene drum, 55-gallon (4 per pallet). It is a strong mineral acid and oxidizer used in fertigation, where it both acidifies irrigation water and supplies nitrate nitrogen, and in the descaling and clean-in-place maintenance of irrigation systems. The polyethylene drum is selected for compatibility with the acid.
Chemical Composition and Properties
| Property | Value |
|---|---|
| Chemical name | Nitric acid (aqueous solution) |
| Formula | HNO3 |
| CAS No. | 7697-37-2 |
| Concentration | 35% by weight |
| Appearance | Colorless to yellowish liquid |
| Solubility | Miscible with water in all proportions |
| Hazard class | 8, Corrosive; also an oxidizer |
| UN number | UN1760 |
Functional Mechanism
Nitric acid dissociates in water to lower pH and neutralize bicarbonate alkalinity, while contributing nitrate (NO3-), a directly plant-available form of nitrogen. In system maintenance, the acid dissolves carbonate and mineral scale that accumulates in lines, filters, and emitters.
Target Applications
- Fertigation: simultaneous acidification of irrigation water and supply of nitrate nitrogen.
- Reduction of irrigation-water pH and neutralization of bicarbonate alkalinity.
- Descaling and clean-in-place maintenance of drip lines, emitters, and water-handling equipment.
Application Specifications
Meter into the water stream to the target pH using acid-compatible injection equipment, accounting for the nitrogen contribution in the overall nutrient program. When diluting, always add acid slowly to water, never water to acid.
Use Restrictions and Compatibility
A powerful oxidizer that may intensify fire. Incompatible with bases, metals (corrodes steel and most metals), organic materials, reducing agents, alcohols, amines, and acetic acid. Contact with metals and organics can evolve corrosive and toxic gases. Store and handle in compatible materials such as polyethylene.
Storage and Handling
Store locked up in a cool, well-ventilated area away from organics, metals, bases, and oxidizable materials, within acid-resistant secondary containment. Wear chemical-resistant gloves, chemical splash goggles or face shield, and protective clothing; provide ventilation to control vapors and mists.
Safety and First Aid
- Causes severe skin burns and serious eye damage (H314); harmful if inhaled (H332). Contact stains skin yellow and produces deep burns.
- Inhalation of vapors or nitrogen-oxide gases is hazardous and may be fatal; symptoms including pulmonary edema can be delayed 24 to 48 hours and are aggravated by exertion.
- Eye contact: rinse with plenty of water for 15 to 20 minutes; seek immediate medical attention.
- Skin contact: remove contaminated clothing; rinse for 15 to 20 minutes.
- Inhalation: move to fresh air, keep at rest, and obtain medical attention; monitor for delayed respiratory effects.
- Ingestion: do not induce vomiting; seek immediate medical attention.
Firefighting Measures
Non-combustible but a strong oxidizer that can intensify fire and react with oxidizable materials. Corrosive nitrogen oxides are evolved on heating or contact with metals and organics. Firefighters require chemical protective clothing and positive-pressure self-contained breathing apparatus; ordinary structural firefighting gear is inadequate.
Environmental Precautions
Harmful pH shift and nitrogen loading in receiving water; nitrogen-oxide gases may form during spills. Prevent uncontrolled discharge and isolate down-wind areas during large releases.
Compliance
Industrial exposure to nitric acid vapors and mists is classified by IARC as a known human carcinogen. OSHA PEL is 2 ppm (5 mg/m3). Shipped as UN1760, Corrosive, Hazard Class 8.
Details
Khemical Nitric Acid 35% is a dilute aqueous nitric acid solution (35% HNO3 by weight), supplied in a polyethylene drum, 55-gallon (4 per pallet). It is a strong mineral acid and oxidizer used in fertigation, where it both acidifies irrigation water and supplies nitrate nitrogen, and in the descaling and clean-in-place maintenance of irrigation systems. The polyethylene drum is selected for compatibility with the acid.
Chemical Composition and Properties
| Property | Value |
|---|---|
| Chemical name | Nitric acid (aqueous solution) |
| Formula | HNO3 |
| CAS No. | 7697-37-2 |
| Concentration | 35% by weight |
| Appearance | Colorless to yellowish liquid |
| Solubility | Miscible with water in all proportions |
| Hazard class | 8, Corrosive; also an oxidizer |
| UN number | UN1760 |
Functional Mechanism
Nitric acid dissociates in water to lower pH and neutralize bicarbonate alkalinity, while contributing nitrate (NO3-), a directly plant-available form of nitrogen. In system maintenance, the acid dissolves carbonate and mineral scale that accumulates in lines, filters, and emitters.
Target Applications
- Fertigation: simultaneous acidification of irrigation water and supply of nitrate nitrogen.
- Reduction of irrigation-water pH and neutralization of bicarbonate alkalinity.
- Descaling and clean-in-place maintenance of drip lines, emitters, and water-handling equipment.
Application Specifications
Meter into the water stream to the target pH using acid-compatible injection equipment, accounting for the nitrogen contribution in the overall nutrient program. When diluting, always add acid slowly to water, never water to acid.
Use Restrictions and Compatibility
A powerful oxidizer that may intensify fire. Incompatible with bases, metals (corrodes steel and most metals), organic materials, reducing agents, alcohols, amines, and acetic acid. Contact with metals and organics can evolve corrosive and toxic gases. Store and handle in compatible materials such as polyethylene.
Storage and Handling
Store locked up in a cool, well-ventilated area away from organics, metals, bases, and oxidizable materials, within acid-resistant secondary containment. Wear chemical-resistant gloves, chemical splash goggles or face shield, and protective clothing; provide ventilation to control vapors and mists.
Safety and First Aid
- Causes severe skin burns and serious eye damage (H314); harmful if inhaled (H332). Contact stains skin yellow and produces deep burns.
- Inhalation of vapors or nitrogen-oxide gases is hazardous and may be fatal; symptoms including pulmonary edema can be delayed 24 to 48 hours and are aggravated by exertion.
- Eye contact: rinse with plenty of water for 15 to 20 minutes; seek immediate medical attention.
- Skin contact: remove contaminated clothing; rinse for 15 to 20 minutes.
- Inhalation: move to fresh air, keep at rest, and obtain medical attention; monitor for delayed respiratory effects.
- Ingestion: do not induce vomiting; seek immediate medical attention.
Firefighting Measures
Non-combustible but a strong oxidizer that can intensify fire and react with oxidizable materials. Corrosive nitrogen oxides are evolved on heating or contact with metals and organics. Firefighters require chemical protective clothing and positive-pressure self-contained breathing apparatus; ordinary structural firefighting gear is inadequate.
Environmental Precautions
Harmful pH shift and nitrogen loading in receiving water; nitrogen-oxide gases may form during spills. Prevent uncontrolled discharge and isolate down-wind areas during large releases.
Compliance
Industrial exposure to nitric acid vapors and mists is classified by IARC as a known human carcinogen. OSHA PEL is 2 ppm (5 mg/m3). Shipped as UN1760, Corrosive, Hazard Class 8.