When the use of tripolyphosphates in detergents was under...

Name: Problem 14, Chapter 2: Principles of Descriptive Inorganic Chemistry
Uploaded: 2021-06-21T18:36:11-08:00
Duration: 1 min 49 s
Channel: David Collins
Description: When the use of tripolyphosphates in detergents was under attack, sodium carbonate and sodium silicate were tried as replacements for use in high concentration in detergents. But concern was expressed that such detergents would be very dangerous if infants swallowed them, and might also be quite corrosive to the washing machines. Explain why.

When the use of tripolyphosphates in detergents was under attack, sodium carbonate and sodium silicate were tried as replacements for use in high concentration in detergents. But concern was expressed that such detergents would be very dangerous if infants swallowed them, and might also be quite corrosive to the washing machines. Explain why.

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Key Concepts

Corrosion of Materials

The same chemical properties that make these compounds effective as cleaning agents also make them aggressive towards metals and other materials. In appliances like washing machines, prolonged exposure to highly alkaline substances can lead to the degradation of metal parts and seals, ultimately causing corrosion and equipment failure.

Alkalinity and pH

Detergents formulated with high concentrations of basic compounds exhibit a very high pH. While high alkalinity aids in breaking down grease and soils, it also poses significant hazards. Ingestion of substances with a high pH can result in severe chemical burns to soft tissues, especially in vulnerable populations such as infants.

Caustic Burns and Toxicity

Highly alkaline chemicals are caustic, meaning they can cause chemical burns upon contact with skin or internal tissues. If swallowed, these corrosive chemicals can rapidly damage the mucous membranes and tissues of the gastrointestinal tract, leading to serious health risks.

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