The spelling of the word "cream of bismuth" can be explained using IPA phonetic transcription. The word is pronounced /kriːm əv ˈbɪzməθ/. The "ea" in "cream" is pronounced as a long "e" sound, while the "o" in "of" is pronounced as a schwa vowel sound. The "bi" in "bismuth" is pronounced as a long "i" sound. The "sm" is pronounced as a blend of the "s" and "m" sounds. Lastly, the "th" in "bismuth" is pronounced as a voiced dental fricative sound.
Cream of bismuth refers to a dense, heavy, and opaque compound that is commonly utilized in medicine as an antacid and in cosmetics as a pigment. It is composed primarily of bismuth subgallate, a chemical compound derived from bismuth and gallic acid.
In its physical form, cream of bismuth appears as a fine white powder that has a silky texture. It is known for its insolubility in water, ethanol, and many other solvents, making it safe for oral and topical applications.
As a medical ingredient, cream of bismuth is often favored for its ability to alleviate symptoms of gastrointestinal distress, such as indigestion, heartburn, and gastric upset. It achieves this by neutralizing excess stomach acid and reducing stomach irritation. Additionally, it possesses mild antiseptic properties that contribute to its protective effect on irritated tissues.
Cream of bismuth is also valued in the cosmetic industry for its opaque and skin-toned properties. It is frequently utilized as a pigment in foundations, powders, and other makeup products to create a smoother and more even complexion, while also providing a mattifying effect.
Although cream of bismuth is considered safe for most individuals, it is advisable to consult a healthcare professional before using it, especially if one has a history of allergies or sensitivities to bismuth compounds. Additionally, as with any medication or cosmetic product, it is essential to follow the instructions provided by the manufacturer or healthcare professional for safe and effective use.
Cremor bismuthi, made by triturating 20 parts of hydrated oxide of bismuth with 80 parts of water; used externally as a soothing application.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.