Safety precautions for Sodium Metabisulfite Production

1. Sulfur is a Class B hazardous material, and there is a possibility of explosion in dust. During the crushing process of solid sulfur, it is necessary to pay attention to ventilation to prevent dust from reaching the explosion limit. The lower explosive limit is 35mg/m3.

2. SO2 gas is a toxic gas that is heavier than air. In the event of a leak, personnel from the contaminated area should be quickly evacuated to the windward area and immediately isolated, with strict restrictions on entry and exit. It is recommended that emergency response personnel wear self-contained positive pressure respirators and protective clothing. Enter the site from the windward direction and try to cut off the source of leakage as much as possible. Cover the sewer and other areas near the leakage point with an industrial covering layer or adsorption/absorbent to prevent gas from entering. Reasonable ventilation to accelerate diffusion. Dilute and dissolve with spray water. Build embankments or dig pits to accommodate the production

3. The temperature around the incinerator and pipelines is high, so it is necessary to prevent high-temperature burns.

4. The washing water contains corrosive substances such as sulfite and sulfuric acid, which should be prevented from entering the eyes and mouth. Prevent skin contact and cause injury.

5. Soda ash has strong alkalinity and needs to be prevented from entering areas such as the eyes, causing burns.

Safety Precautions for Sodium Metabisulfite Production

Fire Protection Measures for Sodium Metabisulfite

Hazard characteristics: It has strong reducibility and can react strongly with strong oxidizing agents such as chromic anhydride, chlorate, and potassium permanganate, causing combustion or explosion.

Harmful combustion products: sodium oxide (Na2O) and sulfur dioxide (SO2)

Combustion equation: Na2S2O5+O2- ignition -2SO2+Na2O

Fire extinguishing method: Firefighters must wear full body fire and gas resistant clothing and extinguish the fire upwind. When extinguishing a fire, try to move the container from the fire site to an open area as much as possible.