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Properties of Matter Element Card 19, Lesson 21



Melting point

113° C

Boiling point

445° C


2.0 g/cm³



Other physical properties

Sulfur exists in three different forms. The sample at this station is the most common, called the orthorhombic form, which is the only form that is stable at room temperature.

Chemical properties

Sulfur burns when heated in air and is insoluable in water.


Compounds of sulfur include sulfuric acid, sulfates, and sulfides. Sulfur dioxide is an important component of acid rain.


Sulfur is used as an agricultural fungicide. Sulfuric acid is used in car batteries and in making fertilizers.


The old name for sulfur was brimstone, because it is found naturally on the brims of pools of hot water in volcanic areas.

More information on sulfur: Burning-sulfur.png

Sulfur crusted around the opening of a hot spring

Sulfur is often found in areas of volcanic activity. Workers who collect the sulfur need to wear goggles and masks to protect themselves from poisonous, acidic gases, many of which are sulfur compounds.


A plane spraying sulfur fungicide

Sulfur, used as a fungicide for many agricultural crops, is sprayed from the air on grapes in a vineyard.




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