Nitric Acid – HNO3

Here nitric acid ( HNO3 ) or hydrogen nitrate You can find basic information about: properties, health effects, detection devices and systems –  HNO3 gas detector  – and suitable respiratory protective equipment (nitric acid respirator, gas mask or E-P3 with combined filter powered air breathing apparatus).

Nitric acid (HNO3) properties

Nitric acid ( HNO3 ) – hydrogen nitrate – also known as – mainly used in the food industry for the production of nitrogenous fertilizers. It is also used to produce explosives and nitrogenous compounds. This substance can be used in pharmacy, the steel industry, as well as in the processing of metals (pickling, etching).

  • CAS
  • 7697-37-2
  • TWA (8 hours)
  • –
  • STEL (15 minutes)
  • 1 ppm
  • LEL
  • –
  • IP
  • 11.95 eV
  • DENSITY/AIR
  • 2.2
  • FILTER/SCBA
  • E-P3

Health effects of nitric acid

Under normal temperature and pressure conditions, nitric acid ( HNO3 ) stifling It is a colorless liquid with an odor and can be detected at extremely low concentrations. when inhaled is toxic (H331), for respiratory tract is corrosive and Can cause serious chemical burns and eye damage. IARC*, chronic exposure and various cancer He classified this gas into category 1 because it revealed connections between its types.

*IARC: International Agency for Research on Cancer (WHO is affiliated with the World Health Organization)

HNO3 gas detector (Nitric acid)

Although nitric acid gas can be detected by smell, only one HNO3 gas detector can accurately measure concentrations of this highly toxic gas. Therefore ppm or ppb to monitor concentrations nitric acid detection device must be selected.

Nitric acid respiratory protection (HNO3)

Because nitric acid irritates the eyes, workers should not use it for short-term applications. full face mask or more comfortable and up to 30 times OEL E-P3 with combined filter They need to wear a powered air-purifying respirator.