Properties+of+Sulfur

PROPERTIES Sulfur is an odorless, tasteless light yellow colored, brittle solid that is insoluble in water but soluble in carbon disulfide. It is an element that with favorable circumstances it combines with all the other elements except gases, gold and platinum. It appears in various allotropic modifications: rhombic, monoclinic, polymeric and others. Each allotropic has a different solubility, specific gravity, crystalline, crystalline arrangement and other physical constants. Rhombic sulfur has and orthorhombic crystalline structure that is stable below 95.5°C. Amorphous or “plastic” Sulfur is a dark colored, noncrystalline, gumlike substance. It is formed by rapidly cooling of the crystalline form. X-ray studies indicate that amorphous sulfur may have a helical structure with 8 atoms per spiral.

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 * Color:** strong yellow in thick crystals and duller yellow in small crystals.
 * Luster:** is vitreous to more often resinous or earthy in massive forms.
 * Cleavage**:is very poor in two directions.
 * Streak**: yellow.
 * Fracture**: conchoidal.
 * Crystal habits**: mostly massive or powdery forms but well shaped blocky crystals are common.