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sodium dichromate

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sodium dichromate

[′sōd·ē·əm dī′krō‚māt]
(inorganic chemistry)
Na2Cr2O7·2H2O Poisonous, red to orange deliquescent crystals; soluble in water, insoluble in alcohol; melts at 320°C; loses water of hydration upon prolonged heating at 105°C; used as a chemical intermediate and corrosion inhibitor and in the manufacture of pigments, leather tanning, and electroplating. Also known as bichromate of soda; sodium acid chromate; sodium bichromate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Major players in the global sodium dichromate market are Soda Sanayii (Turkey), Elementis plc (UK), Vishnu Chemicals (India), Lanxess (Germany), Nippon Chemi-Con Corporation (Japan), Yin He Holdings Limited (Hong Kong), Sichuan Chemical Group Co., Ltd (China), Haining Peace Chemical Co., Ltd (China), Gansu Qiyuan Chromate-Chemical Production Co., Limited (China), Tianjin Mingyang Chemistry Industry Co., Ltd (China).
NTP toxicity report (TOX 72, 3-month studies), technical report (TR 546, 2-year studies), and journal articles of NTP studies on sodium dichromate dihydrate, a compound that contains CrVI.
In the summer of that year, contract work crews and safety personnel identified sodium dichromate as a potential occupational hazard in the work environment.
A solution of sodium dichromate in sulfuric acid was used to determine caloric reserves in individual insects, as described by Van Handel (1972).
* pure sodium dichromate used in a high school chemistry class for a demonstration of colors by a chemistry teacher.
"During the spring and summer of 2003, KBR's managers received repeated notice of the sodium dichromate contamination at the site, including the nature of the hazard and the need for protective equipment," his complaint alleges.
The move will see the Queen's Award- winning site end production of chromic acid and chrome sulphate and concentrate on chrome oxide and sodium dichromate manufacture.
In order to ensure that the effects seen were not nonspecific responses to toxic high doses, the cells were exposed to low, relatively nontoxic doses of the metal compounds sodium arsenite, cadmium chloride, sodium dichromate, and nickel subsulfide for 4 hours.
M2 PRESSWIRE-August 8, 2019-: Sodium Dichromate Market Outlook, Mechanical property, Durability performance, Size, Key Geographic, Market Opportunity and Challenges, Key Vendors, Growth Rate CAGR Forecast 2023
Environmental Protection Agency and a leading expert on hexavalent chromium, told the committee that soldiers were exposed to 80 to 200 times the federal limit for worker exposure to sodium dichromate, which contains hexavalent chromium and which Gibb called one of the most potent human carcinogens.
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