White phosphorus emergency rescue knowledge

White phosphorus, alias: yellow phosphorus

Special warning
★ highly toxic. Skin contact can cause burns and cause poisoning, severe death;
★ Spontaneous combustion in the air;
★ Do not use high-pressure water to disperse spills.

Chemical formula
Molecular formula: P4

Dangerous
Risk category
4.2 spontaneous combustion items

Combustion explosion risk
• Flammable, in the presence of moist air, will spontaneously ignite at 30°C, releasing acidic fumes.

Health hazards
• Occupational Exposure Limits: PC-TWA 0.05mg/m3; PC-STEL 0.1mg/m3
• IDLH: 5mg/m3
• Acute toxicity: Rat oral LD503.30mg/kg
• This product can cause skin burns. Phosphorus burns the skin and causes poisoning. In severe cases, it causes liver and kidney damage, acute hemolysis, etc.: oral burns the digestive tract, and liver and kidney damage occurs.
• Acute inhalation This product has vapor poisoning manifestations: respiratory irritation, headache, dizziness, weakness, vomiting, epigastric pain, jaundice, and hepatomegaly. Severe acute liver necrosis, pulmonary edema, etc.
• Chronic poisoning can cause toxic liver disease and bone damage.

environmental impact
• Very toxic to aquatic organisms.

Physical and chemical properties and uses
Physical and chemical properties
• Colorless to yellow waxy solid with garlic odor and pale green phosphorescence in the dark. Insoluble in water. Reacts violently with oxidants such as nitric acid and oxygen.
• Melting point: 44.1°C
• Relative density: 1.88
use
• Used for phosphoric acid, phosphor bronze alloys, phosphorus trichloride and organophosphorus pesticides. Militaryally, it is used to make incendiary bombs.

Personal protection
• Wear full-type canisters • Wear closed chemical protective clothing

Emergency operations
Isolation and public safety leaks: In the absence of pollution. The initial isolation is at least 50m and the downwind evacuation is at least 300m.
Fire: If there is a tank, tanker or tanker in the fire, the isolation is 800m.
Consider evacuating people and supplies in the area of ​​separation.
• Evacuation of irrelevant personnel and delineation of guard areas.
• Stay in the upper hand.

Leakage treatment
• Eliminate all sources of ignition (no smoking near the leak zone, all open fires, sparks or flames)
• Do not touch the container or spill when you are not wearing full protective clothing. • Do not touch or leach spills. • When you are safe, use measures such as valve closing and plugging to cut off the source of the leak. • Prevent spillage from entering the body of water. Sewer, basement, or restricted space • Small spills, covered with water, sand, or soil, spade metal containers and seal with water • Excessive leaks, dams, and wet sand

Fire fighting
Extinguishing media: water, spray water, wet sand, wet soil • Do not disperse spilled material with high-pressure water flow • Remove the container from the fire site with safety in mind • Cool the container with plenty of water until the fire is extinguished

first aid
• Skin contact: Remove contaminated clothing and rinse immediately with plenty of running water. Followed by smear 2% to 3% silver nitrate phosphorus fire. Can also be washed with 1% copper sulfate solution. Get medical attention. Disable oily dressing • Eye contact: Immediately lift the eyelid and rinse thoroughly with plenty of running water or saline for 10-15 minutes. Get medical attention.
• Inhalation: quickly leave the site to fresh air. Keep the airway open. If breathing is difficult, give oxygen. Respiratory, cardiac arrest, and immediate CPR. Get medical attention.
• Ingestion: Immediately induce vomiting with fingertips. Following gastric lavage with 2% copper sulfate, or gastric lavage with 1:5000 potassium permanganate, sodium sulfate catharsis. Gastric lavage and catharsis should be careful to prevent gastrointestinal perforation or bleeding. Get medical attention.