What are the melting points and safety concerns associated with the use of copper and sulfur?

The answer is explained below.

Explanation:

The melting point is a physical property of a substance and is the temperature at which the material changes from a solid to a liquid state at atmospheric pressure.

Melting point of copper

The melting point of copper (Cu)  with atomic number 29 is 1,085 °C

Safety concerns associated with the use of copper

Excess copper inhibits plants growth.Copper can affect the activity in soils, as it negatively influences the activity of microorganisms and earthworms.Exposure of the body to copper can irritate the skin and eyes.Copper may negatively affect the liver and kidneys.Copper is also known to cause vomiting, headaches and dizziness when exposed for long.

Melting point of sulfur

The melting point of sulfur (S) with atomic number 16 is 115.2 °C

Safety concerns associated with the use of sulfur

Long term exposure Increases susceptibility to respiratory infections.Ingesting too much sulfur may cause diarrhea and blurred vision.Chronic exposure can affect the sense of smelling. If animals eat too much sulfur, it may affect the stomach and intestines, and cause neurological disorders.Prolonged inhalation exposure may  cause severe breathing difficulties.Thermal burn from molten sulfur when in contact with the skin, can cause dryness, mild irritation.Sulfur in excess can cause brain cell death.