منابع مشابه
Dust-free bleaching powder may not prevent symptoms in hairdressers with bleaching-associated rhinitis
OBJECTIVE Hairdressers have an increased risk for airway symptoms especially when using hair-bleaching powder containing persulfate. To minimize exposure, dust-free bleaching powder (DFP) has been made available. We studied the effects of regular powder (RP) or DFP on the airway symptoms of hairdressers with hair-bleaching associated rhinitis. METHODS Twelve hairdressers each performed three ...
متن کاملInfluence of Bleaching Powder on the Quality of Giant Freshwater Prawn (Macrobrachium rosenbergii)
Calcium hypochlorite commercially known as bleaching powder is used as a bleaching agent in shrimp processing industries in many countries and known to effect biochemical alteration in shrimp muscle. Studies were, therefore, undertaken to determine their effect in different concentrations viz., 10, 20, 30, 40 and 50 ppm with different time intervals on the quality of head-on, headless shell-on ...
متن کاملUse of Crude Oil and Bleaching Powder in Controlling Fly Breeding in Compost Trenches
number of "municipal 'towns, in India, the methods of disposal of town"-wastes like night soil and katchra are highly insanitary and wasteful. The katchra dumping grounds and the night soil trenching grounds have often proved to be dangerous sources of fly breeding. For some years now, the compost method has been recommended as a satisfactory system of disposal of town refuse. It has proved to ...
متن کاملBleaching و عوارض آن
Normal 0 false false false EN-US X-NONE AR-SA One of the concerns od patients have been teeth stains particularly in anterior region. The etiology of this can be pulp necrosis, developmental disorders, drugs and systemic diseases. Bleaching or tooth whitening is a solution for some of these color changes. This article evaluated different methods of...
متن کاملRagauskas Overview of Hexenurinic Acids on Pulp Bleaching Influence of Hexenuronic Acids on Kraft Bleaching
Over the past ten years there has been a research renaissance in hemicellulose chemistry as it applies to pulping and bleaching operations. Researchers have identified hemicelluloses as an important component influencing pulp yields, strength properties, and pulp bleachability. This report summarizes the research activities undertaken at IPST in the dues funded research consortium (DFRC) projec...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1910
ISSN: 0368-1645
DOI: 10.1039/ct9109702541