Difference between revisions of "Potassium chloride"
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== Description == | == Description == | ||
| − | White crystals that occur in nature as the mineral sylvite. Potassium chloride is used in photography, spectroscopy, as a table salt substitute and as an [ | + | White crystals that occur in nature as the mineral sylvite. Potassium chloride is used in photography, spectroscopy, as a table salt substitute and as an [[ice%20melter|ice melting salt]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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potassium monochloride; chloropotassuril; febrifuge of Sylicius; muriate of potass | potassium monochloride; chloropotassuril; febrifuge of Sylicius; muriate of potass | ||
| − | + | == Risks == | |
| − | == | + | * Noncombustible. |
| + | * Toxic by ingestion of large amounts. | ||
| + | * Millipore Sigma: [https://www.emdmillipore.com/US/en/product/msds/MDA_CHEM-104936?ReferrerURL=https%3A%2F%2Fsearch.yahoo.com%2F&bd=1 SDS] | ||
| + | |||
| + | ==Physical and Chemical Properties== | ||
Soluble in water (pH is about 7 with saturated solution). Slightly soluble in ethanol. Insoluble in ether, acetone. | Soluble in water (pH is about 7 with saturated solution). Slightly soluble in ethanol. Insoluble in ether, acetone. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 773 | + | | 773 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.987 | + | | 1.987 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 31: | Line 35: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 1500 (sublimes) | + | | 1500 C (sublimes) |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | |||
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 631 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 631 | ||
Latest revision as of 08:20, 26 July 2022
Description
White crystals that occur in nature as the mineral sylvite. Potassium chloride is used in photography, spectroscopy, as a table salt substitute and as an ice melting salt.
Synonyms and Related Terms
potassium monochloride; chloropotassuril; febrifuge of Sylicius; muriate of potass
Risks
- Noncombustible.
- Toxic by ingestion of large amounts.
- Millipore Sigma: SDS
Physical and Chemical Properties
Soluble in water (pH is about 7 with saturated solution). Slightly soluble in ethanol. Insoluble in ether, acetone.
| Composition | KCl |
|---|---|
| CAS | 7447-40-7 |
| Melting Point | 773 C |
| Density | 1.987 g/ml |
| Molecular Weight | mol. wt. = 74.55 |
| Boiling Point | 1500 C (sublimes) |
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 631
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7783
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985