How do you dispose of sodium azide solution?

Destruction. Solutions of 5% or less of sodium azide can be destroyed by reaction with freshly prepared nitrous acid. Destruction MUST be conducted in a working fume hood and in an open container due to the release of toxic nitric oxide (NO) gas.

Can sodium azide be poured down the drain?

Sodium azide should never be flushed down the drain since this practice can cause serious incidents when the azide reacts with lead or copper in the drain lines and explodes. Moreover, sodium azide has high acute toxicity as well as high toxicity to bacteria in water treatment plants.

How do you dispose of sodium azide powder?

If you are a lab technician or administrator at an institution where stock solutions with sodium azide preservative are used, you should consider containerizing these waste liquids in plastic drums and having your waste vendor ship and dispose of your waste as non-hazardous rinse water.

Is sodium azide acutely hazardous waste?

Click here to enter a date. Sodium Azide (NaN3) is acutely toxic, water reactive, and a potentially explosive chemical.

How do you quench sodium azide?

Cool down the reaction mixture to 0 deg C and slowly add water to quench the excess sodium azide. just adding water will not destroy the sodium azide, my reaction is in water. If you extract your product first, you can quench the aqueous phase with sodium nitrite and acid without losing your product.

How do you dispose of sodium?

Waste Disposal: All waste sodium must be disposed of as hazardous waste. Scraps must be in a bottle under mineral oil, properly labeled, and given it to EH&S for disposal. Scraps of sodium can be destroyed in the lab shortly after generating them to reduce the hazards of storing sodium as hazardous waste.

What happens if you touch sodium azide?

Following release of sodium azide into the air, you could be exposed by breathing in the dust or the gas that is formed. Sodium azide can also enter the body and cause symptoms through skin contact. An explosion involving sodium azide may cause burn injury as well as expose people to the toxic gas, hydrozoic acid.

How do you quench azide waste?

Quenching

  1. In a three-neck flask with a stirrer, dilute the azide with water so that it does not exceed 5%
  2. With stirring add a 20% solution of sodium nitrite containing 1.5 g of sodium nitrite per gram of azide.

How do you dispose of sodium chloride solution?

Rinse immediately with plenty of water for at least five minutes. Seek medical attention if irritation occurs and persists….In the event of a sodium chloride spill, the following steps should be taken:

  1. Vacuum or wet-sweep the area.
  2. Place into a closable container and label for disposal.

How do you dispose of sodium azide?

If using the sewer system for disposal, flush sodium azide with 100 times more water than the solution itself Label all containers, waste disposal fixtures, and any medical instruments which use products containing the compound Don’t store tubing or any other materials that could have come into contact with sodium azide solutions

Should sodium azide be purchased as a dilute solution?

Whenever possible, sodium azide should be purchased as a pre-mixed stock solution of less than 5%. The diluted solution is less hazardous than the solid or more concentrated solutions.

What is involved in deactivating sodium azide?

All personnel involved in deactivating sodium azide shall conduct inspections, maintenance, or other activities to ensure that the process does not result in spills, leaks, or emissions into the environment prior to deactivation of the material.

What are the safety precautions for sodium azide?

HANDLING AND STORAGE. Prior to working with sodium azide you should be trained on its proper handling and storage. Use appropriate personal protective equipment such as safety glasses, goggles, gloves, and laboratory coat when handling sodium azide. On contact with water, sodium azide forms hydrazoic acid which is toxic.