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Health Books International (formerly Teaching-aids at Low Cost or TALC) is an international non-profit organisation that was set up in Britain in 1965 by Professor David Morley (paediatrician). [1] Until it merged with Practical Action publishing, HBI was registered with the Charity Commission and also with Companies House in the UK. [2]
Talc, or talcum, is a clay mineral composed of hydrated magnesium silicate, with the chemical formula Mg 3 Si 4 O 10 (OH) 2. Talc in powdered form, often combined with corn starch, is used as baby powder. This mineral is used as a thickening agent and lubricant. It is an ingredient in ceramics, paints, and roofing material.
Some talc products may also contain phthalates — chemicals that disrupt hormones in the body and have been linked to ovarian cancer. Plus, talc itself can be abrasive, she added, so it may cause ...
Previously, talc was used by most manufacturers, but cornstarch is currently the most popular dusting powder. [145] Although rare during normal use, talc is known to be potentially irritant to mucous membranes (such as in the vagina). Cornstarch is generally believed to be safe; however, some researchers have raised concerns over its use as well.
Pan-Cake used talc—rather than oil or wax—as the base, and, applied directly to the skin with a wet sponge, it offered enough coverage (it could be layered without caking on the skin) to eliminate the need for a foundation underneath. This was considered significantly more lightweight and natural-looking on the skin than the standard method ...
This list of mobile app distribution platforms includes digital distribution platforms, or marketplace 'app stores', intended to provide mobile applications, aka 'apps' to mobile devices. For information on each mobile platform and its market share, see the mobile operating system and smartphone articles.
Soapstone is relatively soft because of its high talc content—talc has a definitional value of 1 on the Mohs hardness scale. Softer grades may feel similar to soap when touched, hence the name. No fixed hardness is given for soapstone because the amount of talc it contains varies widely, from as little as 30% for architectural grades such as ...
In 1892 responded to a letter from a physician about a patient suffering skin irritations after using medicated plasters. Kilmer suggested to use scented Italian talcum powder to mitigate the irritation and sent a can to the doctor. [2] Baby Powder debuted in 1893 and went to the market in 1894. [3]
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