Mercurous Chloride (CAS 10112-91-1) Suppliers and Product Information

Mercurous chloride, also known as calomel, is a dense white powder used in various applications. It is used in calomel electrodes, ceramic painting, as a fungicide in agriculture, in pyrotechnics for producing dark green light, and historically as an antiseptic and antisyphilitic agent in medicine. The compound is prepared by passing limited chlorine gas over mercury or by precipitation from mercurous salt solutions.

Frequently Asked Questions about Mercurous Chloride

Q: What are the main uses of mercurous chloride?

A: Mercurous chloride is used in calomel electrodes, ceramic painting, as a fungicide in agriculture, in pyrotechnics for producing dark green light, and historically as an antiseptic in medicine.

Q: Is mercurous chloride toxic?

A: Yes, mercurous chloride is highly toxic by ingestion and other routes of exposure. Symptoms of toxicity include nausea, vomiting, abdominal pain, diarrhea, and kidney damage.

Q: How is mercurous chloride prepared?

A: Mercurous chloride can be prepared by passing limited amounts of chlorine gas over mercury, by heating mercury(II) chloride with mercury, or by precipitation from mercurous salt solutions.

Q: What are the chemical properties of mercurous chloride?

A: Mercurous chloride is a white, odorless solid that is insoluble in water. It is stable in air but darkens on exposure to light. It can decompose to mercury and mercuric chloride under certain conditions.

Q: What precautions should be taken when handling mercurous chloride?

A: Due to its toxicity, proper safety equipment should be used when handling mercurous chloride. It should be stored in a cool, dry place away from light and incompatible substances. Exposure limits set by ACGIH and NIOSH should be followed to minimize health risks.