White Phosphorus

Context

Recently, Human Rights Watch accused Israel of unlawfully using White Phosphorus over residential areas of a town in southern Lebanon.

Q1. What is White Phosphorus?

1. It is a highly reactive chemical form of phosphorus that appears as a white or yellowish waxy solid with a strong garlic-like smell.
2. Key Properties
   1. It ignites spontaneously when exposed to air at temperatures above about 30°C.
   2. Once ignited, it continues to burn until completely oxidised or deprived of oxygen.
   3. During combustion, it produces thick white smoke composed of phosphorus oxides.

Q2. What are the applications of White Phosphorus?

Military Uses

1. White phosphorus is commonly used by armed forces for several purposes:
   1. Illumination: To light up battlefields during night operations.
   2. Smoke screens: To create dense smoke that conceals troop movements.
   3. Incendiary weapons: Because it burns intensely and spreads fire easily.
2. It is typically delivered through grenades, artillery shells, and mortar rounds.

Industrial Uses

1. White phosphorus is also used in chemical industries. Major uses include production of phosphoric acid and manufacturing phosphates.
2. Phosphates are important in producing Fertilisers, Detergents and Industrial chemicals.
3. Phosphorus has also historically been used in rodenticides and fireworks.

Q3. What are the health impacts of White Phosphorus?

It is dangerous to humans via multiple exposure routes, including inhalation, skin contact, & ingestion.

1. Severe Burns: When it comes into contact with skin, it causes deep chemical burns. The burning particles can penetrate tissue and even reach the bone.
2. Respiratory and Eye Damage: Smoke released during combustion contains phosphoric acids and phosphine gas. Exposure can irritate the eyes and respiratory tract.
3. Long-Term Health Effects: Severe exposure may damage internal organs and lead to serious medical complications.

FAQs

Q1. What is White Phosphorus? 

White phosphorus is a highly reactive chemical form of phosphorus, appearing as a white or yellowish waxy solid with a strong garlic‑like smell.

Q2. What are the key properties of White Phosphorus?

1. Spontaneous ignition when exposed to air.
2. Continuous burning until fully oxidised or deprived of oxygen.
3. Smoke production, composed of phosphorus oxides, during combustion.

Q3. What are the health impacts of White Phosphorus? 

Exposure is dangerous through inhalation, skin contact, or ingestion. Severe burns that penetrate deep into tissue. Respiratory and eye damage from smoke containing phosphoric acids and phosphine gas. Long‑term effects include internal organ damage and serious medical complications.

Q4. Why is White Phosphorus controversial? 

Its use in populated areas raises humanitarian and legal concerns, as it can cause indiscriminate harm to civilians due to its severe burns and toxic smoke, making it a subject of international scrutiny.