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calcium basic information |
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calcium chemical properties |
|
mp |
850 °c(lit.) |
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bp |
1484 °c(lit.) |
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density |
1.54 g/ml at 25 °c(lit.) |
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storage temp. |
water-free area |
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form |
pieces |
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merck |
13,1644 |
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stability: |
stable, but reacts with water to release hydrogen and produce calcium hydroxide. incompatible with strong oxidizing agents, alcohols, moisture. |
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cas database reference |
7440-70-2(cas database reference) |
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hazard codes |
f |
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risk statements |
15 |
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safety statements |
8-24/25-43 |
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ridadr |
un 1401 4.3/pg 2 |
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wgk germany |
1 |
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hazardclass |
4.3 |
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packinggroup |
ii |
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calcium usage and synthesis |
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chemical properties |
softish silver-white metal |
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general description |
a silvery, soft metal that turns grayish white on exposure to air. used in metallurgy. |
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air & water reactions |
pyrophoric ignites in air when finely divided, then burns with crimson flame [merck 11th ed. 1989]. calcium rapidly decomposes in water, the heat of reaction is sufficient that hydrolysis released hydrogen may ignite [lab. gov. chemist 1966]. |
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reactivity profile |
boron trifluoride reacts with incandescence when heated with alkali metals or alkaline earth metals except magnesium [merck 11th ed. 1989]. calcium reacts violently with acids [lab. govt. chemist 1965]. finely divided calcium burns spontaneously in chlorine at elevated temperatures [mellor 3:637, 638, 651 1946-47]. finely divided or massive calcium burns spontaneously in fluorine at ordinary temperatures. calcium is incompatible with metal oxides, alkali metal hydroxides, chlorine fluorides, dinitrogen tetraoxide, and sulfur(with sulfur reacts explosively when ignited) [bretherick, 5th ed., 1995]. |
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health hazard |
contact with eyes or skin produces caustic burns. |
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fire hazard |
produce flammable gases on contact with water. may ignite on contact with water or moist air. some react vigorously or explosively on contact with water. may be ignited by heat, sparks or flames. may re-ignite after fire is extinguished. some are transported in highly flammable liquids. runoff may create fire or explosion hazard. |
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calcium preparation products and raw materials |
hennan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .
sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.
we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team, who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.
we are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market.
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China (Mainland) 
free samples 28053-08-9 NO.1 factory