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How to Detect & Avoid Fruits Ripened with the Calcium ...

Sep 09, 2014 · Calcium carbide is a chemical compound that is industrially used in the production of calcium cyanamide for fertilizer and also in welding. When calcium carbide comes into contact with water it produces acetylene gas that hastens the ripening of several fruits such as .

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Permanent deformation behaviour of black cotton soil ...

Calcium carbide residue is an industrial waste product released from the acetylene industry and is a residual product formed by the reaction between water and calcium carbide. In developing countries like India, there are many acetylene gas production units and PVC chemical plants, which produce CCR in huge amounts, .

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Calcium carbide - HazMat Tool

Calcium carbide. Calcium carbide, also known as calcium acetylide, is a chemical compound with the chemical formula of CaC2. Its main use industrially is in the production of acetylene and calcium cyanamide.The pure material is colorless, however pieces of technical-grade calcium carbide are grey or brown and consist of about 80–85% of CaC2 (the rest is CaO (calcium oxide), Ca3P2 (calcium ...

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Conclusion on the peer review of the pesticide risk ...

Peer Review of the pesticide risk assessment of the active substance calcium carbide EFSA Journal 2011;9(10):2419 2 It should be emphasized that the active ingredient of the substance notified as calcium carbide is the calcium phosphide contained in the technical calcium carbide, which is a phosphine (phosphane) generator.

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Economic Analysis Of Effluent Guidelines On The ...

----- epa - 230/1-74-034 phase 2 december 1974 economic analysis of effluent guidelines on the electrolytically produced chromium, manganese and synthetic manganese dioxide industries; and on the calcium carbide industry december, 1974 office of planning and evaluation environmental protection agency washington, d. c. 20460 contract no.

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Acetylene - Wikipedia

Carbide lamps were also used extensively as headlights in early motor vehicles and as an early light source for lighthouses. Plastics and acrylic acid derivatives. Except in China, use of acetylene as a chemical feedstock has declined by 70% from 1965 to 2007 owing to cost and environmental .

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Calcium Carbide by Donau Chemie AG - Environmental Expert

Calcium Carbide by Donau Chemie AG. In Landeck we produce calcium carbide based on coke and lime stone as raw materials. Most of the energy used in this power-intensive production process is clean and environmentally friendly as it is supplied by our...

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Safety Data Sheet: Calcium carbide - radtke-messtechnik

Calcium carbide Revision: 2018 -09 07 Environmental exposure controls Use appropriate container to avoid environmental contamination. Keep away from drains, surface and ground water. SECTION 9: Physical and chemical properties 9.1 Information on basic physical and chemical properties Appearance Physical state solid Colour dark grey

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calcium carbide - University of Hertfordshire

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home . GENERAL INFORMATION for calcium carbide . Description: Gas generating compound used, in combination with calcium phosphide, as a repellent aganst small mammals in a wide variety of situations.

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CALCIUM CARBIDE | CAMEO Chemicals | NOAA

CALCIUM CARBIDE is a reducing agent. May react vigorously with oxidizing materials. The powdered mixture of the acetylide and iron oxide and iron chloride burns violently upon ignition, producing molten iron. Calcium carbide incandesces with chlorine, bromine, or iodine at 245, 350, or 305°C., respectively, [Mellor, 1946, Vol. 5, 862].

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Calcium Carbide | AMERICAN ELEMENTS

Calcium Carbide is generally immediately available in most volumes. Ultra high purity, high purity, submicron and nanopowder forms may be considered. Carbides are compounds in which the anion is one or more carbon atoms. Most metals form carbide compounds, though not all: Indium and Gallium, for example, do not.

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Calcium carbide - environmentalchemistry

This page contains information on the chemical Calcium carbide including: 12 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and 2 proper shipping names; USDOT 2008 Emergency Response Guidebook initial response information.

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MATERIAL SAFETY DATA SHEET CALCIUM CARBIDE .

MATERIAL SAFETY DATA SHEET CALCIUM CARBIDE Carbide Industries Limited Althorpe Wharf Keadby Scunthorpe North Lincolnshire DN17 3DA Product name: CALCIUM CARBIDE CAS number: 75-20-7 EINECS number: 200-848-3 Index number: 006-004-00-9 Ingredient: CALCIUM CARBIDE TYPICAL CHEMICAL ANALYSIS ... Environmental precautions: Do not discharge into drains ...

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Safety Data Sheet - Fisher Scientific

Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 02.11.2015 Page 6 of 7 Calcium Carbide Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - Burn in a chemical incinerator equipped with an afterburner and .

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Conclusion on the peer review of the pesticide risk ...

Peer Review of the pesticide risk assessment of the active substance calcium carbide EFSA Journal 2011;9(10):2419 2 It should be emphasized that the active ingredient of the substance notified as calcium carbide is the calcium phosphide contained in the technical calcium carbide, which is a phosphine (phosphane) generator.

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Emission Factor Documentation for AP-42 Calcium Carbide ...

Emission Factor Documentation for AP-42 Section 11.4 Calcium Carbide Manufacturing Final Report. ... 1 megagram (2,205 lb) of calcium carbide. Calcium carbide is used primarily in generating acetylene and desulfurizing iron. The Standard ... environment before the calcium carbide has completely cooled or in an inert atmosphere. The calcium

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Carbide | chemical compound | Britannica

Carbide, any of a class of chemical compounds in which carbon is combined with a metallic or semimetallic element. Calcium carbide is important chiefly as a source of acetylene and other chemicals, whereas the carbides of silicon, tungsten, and several other elements are valued for their physical

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State of Oregon: Department of Environmental Quality

The company is attempting to sell this as product. (11/20/02, CWH) Additional investigation by Pacific Carbide estimated that 40-60 55-gallon drums of reacted calcium carbide (calcium hydroxide) may have been buried along the base of the north dike on the property in the mid to late 1950s.

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CALCIUM CYANAMIDE, WITH MORE THAN 0.1% CALCIUM CARBIDE ...

Depending on the calcium carbide content, the cyanamide reacts with water (moisture from air or soil) to produce acetylene and hydrated calcium oxide or calcium hydroxide. Absorption of water during handling or storage of technical calcium cyanamide may .

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Carbide | chemical compound | Britannica

Carbide, any of a class of chemical compounds in which carbon is combined with a metallic or semimetallic element. Calcium carbide is important chiefly as a source of acetylene and other chemicals, whereas the carbides of silicon, tungsten, and several other elements are valued for their physical

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