Liquid
Sulfur heated in oxygen produces a blue flame.
Molten sulfur is sulfur that has been heated to its melting point, which is around 115°C. At this temperature, sulfur changes from a solid state to a liquid state. Molten sulfur is commonly used in industrial processes such as sulfuric acid production and as a component in certain chemicals.
When sulfur is heated in oxygen, the product formed is sulfur dioxide (SO2). This is a colorless gas with a sharp, pungent odor.
The melted sulfur is red-brown.
Sulfur before being heated in the mixture weighs less and is less reactive than in the heated mixture.
Sulfur is typically found in its solid state at room temperature and pressure, appearing as a yellow, brittle solid. It can also exist as a gas when heated to high temperatures or in combination with other elements in compounds.
The compound formed when magnesium and sulfur are heated is magnesium sulfide (MgS).
Sulfur dioxide is produced when sulfur or compounds containing sulfur, such as sulfur-containing minerals, are heated in the presence of oxygen (air). This can occur during the combustion of fossil fuels, volcanic eruptions, or burning of sulfur-containing materials.
It melts
When S (sulfur) is heated in the absence of air, it undergoes sublimation, meaning it changes directly from a solid to a gas without passing through a liquid state. This process results in the formation of a colorless gas with a characteristic odor of sulfur dioxide.
When sulfur is heated, it undergoes a phase change from solid to liquid, and then from liquid to gas due to sublimation. Sulphur does not undergo a direct change from solid to gas.
Sulfur can exist in various forms depending on the conditions. At room temperature, sulfur is a solid yellow crystal, which can melt into a red liquid when heated and eventually turn into a colorless gas when further heated.