Skip to main content

Precautions for Propionyl Chloride

 The following points should be noted when using propionyl chloride in China

 

1. Overview of hazards

Health hazard: its vapor has a strong irritation to respiratory tract and eyes, and causes cough and dyspnea after inhalation. It can also cause skin burns.

 

Flammability hazard: this product is flammable, poisonous and highly irritating.

 

2. First aid measures

Skin contact: Immediately take off contaminated clothing and rinse with plenty of running water for at least 15 minutes. Go to a doctor.

 

Eye contact: Lift the eyelid immediately and rinse thoroughly with plenty of running water or normal saline for at least 15 minutes. Go to a doctor.

 

Inhalation: Quickly leave the scene to fresh air. Maintain airway patency. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical advice.

 

Ingestion: Rinse mouth with water and drink milk or egg white. Seek medical advice.

3. Fire control measures

Dangerous characteristics: the vapor of propionyl chloride cas no and air can form an explosive mixture, which is easy to burn  and explode when exposed  to open flames or high heat. It reacts violently with an oxidizer.It will release highly toxic phosgene when decomposed by heat.It reacts with water and water vapor and emits toxic corrosive gas. Its vapor is heavier than air and can diffuse at a lower place to a considerable distance, and will ignite and strile back in case of fire. In case of high heat, the pressure in the container will increase and there is a risk of cracking and explosion.

 

Hazardous combustion products: carbon monoxide, carbon dioxide, hydrogen chloride, phosgene.

 

Fire fighting method: Firemen must wear filtered gas mask (full face masks) or isolated respirators, wear full body fire and gas suit, and put out the fire upwind. Remove the container from the fire as much as possible into an open area. Evacuate immediately if the container in the fire has changed color or produced sound from the safety relief device.

 

Extinguishing agent: dry powder, carbon dioxide, sandy soil. Do not use water or foam to extinguish fire.

 

Nanjing Chemical Material Corporation is a professional chemical distributor company which is set up through the restructuring of state-owned Nanjing Chemical Raw Material Head Company. We provide Anionic Surfactant, Cationic Surfactant, Methyl Iodide and so on. Want to know more? Please contact us.



Comments

Popular posts from this blog

Difference Between Sulfate And Sulfonate In Shampoo

  Sulfates and sulfonates have two things in common. First, they're all anionic surfactants. Second, they are often used for personal care applications. But there are many differences. They have different molecular mechanisms. They have different functions and they have different raw materials.   Sulfates Sulfate is a compound. It has carbon bonds and oxygen and sulfur bonds. They include substances such as sodium lauryl sulfate and sodium lauryl ether sulfate.   At low pH, these substances plus the c-o-s bond hydrolyze to produce alcohol and inorganic sulfate. At a high pH, sulfate is stable in the base and, if ethoxylated to a relatively high level, produces a low-foaming alkali-soluble surfactant. Sulphates can be prepared by reaction of fatty alcohol or fatty alcohol ethoxylates with reagents such as SO3 or chlorosulfonic acid (CSA).   The reason shampoo becomes thick foam in the shower is that it contains sulfate. Most shampoos and household cleansers contain su...

How Is Ethyl Bromide Prepared From Ethyl Alcohol 2

  1. Preparation of ethyl bromide  from ethyl alcohol and hydrobromic acid Start with a 1-liter double neck round bottom flask with a drop funnel and wide bend. The bend is connected to a long and efficient condenser assembly and receiver for downward distillation. First, place 281ml (or 415 g) 48% hydrobromic acid in a flask, then add 65ml (or 120 g) of concentrated sulfuric acid in batches, while shaking. As it cools, a small quantity of 145ml (or 100 g) 95% ethanol is slowly added to the mixture of sulfuric acid and hydrobromic acid. Then 109ml (or 200g) of concentrated sulfuric acid is slowly added to the drop funnel, and the ethyl bromine obtained by slow distillation is collected in the cold receiver flask. The crude ethyl bromine was washed with equal volume of concentrated hydrochloric acid, then washed with water and a small amount of 5% sodium bicarbonate solution, then washed with water, and finally dried the ethyl bromine with anhydrous calcium chloride. The crude ...

What is Polyether Polyol

  Polyether polyol is prepared by ring-opening polymerization of epoxide monomers (such as ethylene oxide, propylene oxide and 1,2-epoxybutane) and a compound containing two or more active hydrogen atoms (called an initiator). In the presence of alkali catalyst, active hydrogen compounds initiate ring opening and oxide addition will continue until the required molecular weight is obtained. The number of hydroxyl groups in polyether polyol is determined by the number of unstable hydrogen atoms in the initiator. If the initiator has two active hydrogen, glycol will be formed. The reactivity of polyether polyol  to isocyanates depends on the initiator and the type of epoxy monomer that ends the ring-opening polymerization. The primary hydroxyl produced by polyol capped with ethylene oxide is more reactive than the secondary hydroxyl produced by propylene oxide, which is ideal for applications requiring rapid curing time. However, the use of initiator based on ethylene oxide and a...