sulphur

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Sulphur,

city (1990 pop. 20,125), Calcasieu parish, SW La.; inc. 1914. It is a trade center for an area producing natural gas, oil, and timber as well as sorghum, soybeans, cattle, and crawfish. Industry centers chiefly around petroleum products, chemicals, and related enterprises. Engines, concrete products, machinery, and lumber are also manufactured. The city was named for a sulfur dome that was mined from 1894 to 1924. In 1924 oil was discovered nearby.

sulphur:

see sulfursulfur
or sulphur
, nonmetallic chemical element; symbol S; at. no. 16; interval in which at. wt. ranges 32.059–32.076; m.p. 112.8°C; (rhombic), 119.0°C; (monoclinic), about 120°C; (amorphous); b.p. 444.674°C;; sp. gr. at 20°C;, 2.07 (rhombic), 1.
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sulphur

(US), sulfur
a. an allotropic nonmetallic element, occurring free in volcanic regions and in combined state in gypsum, pyrite, and galena. The stable yellow rhombic form converts on heating to monoclinic needles. It is used in the production of sulphuric acid, in the vulcanization of rubber, and in fungicides. Symbol: S; atomic no.: 16; atomic wt.: 32.066; valency: 2, 4, or 6; relative density: 2.07 (rhombic), 1.957 (monoclinic); melting pt.: 115.22°C (rhombic), 119.0°C (monoclinic); boiling pt.: 444.674°C
b. (as modifier): sulphur springs
References in periodicals archive ?
If the pH of the soil in the bed is still too high, it can be reduced from seven to five by adding flowers of sulphur, 125g per square metre on a sandy loam, double that on heavier loams.
Dust corms with flowers of sulphur to keep storage rot at bay.
It is also a safer and less messy alternative than the old advice for increasing stock from seed potatoes of cutting large seed potatoes in half and dusting the cut halves with powdered charcoal or flowers of sulphur.