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Method for detecting nickel in nickel plate

A detection method and nickel plate technology, applied in the field of metallurgical chemical detection and analysis, can solve the problems of complicated operation steps and long analysis time, and achieve the effects of reasonable process, fast analysis speed and low cost

Inactive Publication Date: 2021-02-02
SGIS SONGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods all separate nickel from the solution and then detect it, but the operation steps are cumbersome and the analysis time is long

Method used

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  • Method for detecting nickel in nickel plate
  • Method for detecting nickel in nickel plate
  • Method for detecting nickel in nickel plate

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Experimental program
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Embodiment 1

[0041] The detection method of nickel in a kind of nickel plate of embodiment 1

[0042] 1. Main instruments and equipment

[0043] Balance, electric furnace.

[0044] 2. Chemical reagents

[0045] Unless otherwise specified in the analysis, use only approved reagents of analytical grade; use of distilled water or water of equivalent purity should comply with the provisions of GB / T6682.

[0046] (1) Nitric acid: (1+3) analytically pure; hydrochloric acid: (1+1) analytically pure; ammonia water: (ρ0.90g / mL) analytically pure; triethanolamine: (1+1) analytically pure; ascorbic acid: 50g / mL L; sodium thiosulfate: 60g / L;

[0047] (2) Ammonium uric acid indicator

[0048] Weigh 0.1 g of ammonium viururate and 20 g of potassium sulfate, mix and grind them into powder in a mortar, and store them in a brown bottle.

[0049] (3) Chrome black T indicator

[0050] Take 1g of chrome black T indicator and 100g of sodium chloride that has been dried at 105°C to 110°C, grind and mix th...

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Abstract

The invention belongs to the technical field of metallurgical chemical detection and analysis, and particularly relates to a method for detecting nickel in a nickel plate. The method for detecting thenickel content in a nickel plate by using EDTAtitration comprises the following steps of treating a nickel plate sample with dilute nitric acid, drying by distillation at low temperature, adding diluted hydrochloric acid for dissolution, adding triethanolamine, ascorbic acid and sodium thiosulfate, and then rapidly adding ammonia water, adding an indicator, titrating to bright purple by using EDTA as an end point, and finally calculating the content of nickel in the nickel plate sample according to the amount of an EDTA standard titration solution. Precision and standard recovery experimentson the detection method show that the detection method is convenient to operate, high in analysis speed and accurate in result, and the stability and accuracy of the detection result meet related requirements. In addition, the detection method is reasonable in process, safe, reliable, easy and convenient to operate, low in cost, rapid, efficient and capable of meeting the requirement for on-site fast-paced production.

Description

technical field [0001] The invention belongs to the technical field of metallurgical chemical detection and analysis, and in particular relates to a detection method for nickel in a nickel plate. Background technique [0002] Nickel has great application value in industry, and most of nickel is used to make stainless steel, heat-resistant alloys and corrosion-resistant alloys. Nickel has a good effect on the properties of steel, and can significantly increase the strength without reducing its toughness. Nickel is stable to air and water at room temperature. Nickel can be dissolved in dilute acid. Nickel does not react with strong alkali. It is in a passive state when it meets concentrated nitric acid. When heated, it reacts violently with oxygen, sulfur, chlorine and bromine. [0003] At present, the analysis methods of nickel mainly include gravimetric method, titration method, photometric method and atomic absorption spectrometry. Among them, the gravimetric method uses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16
CPCG01N31/162
Inventor 赵孟群尚聪亚黄波刘引峰陈安为黄宗权罗惠君邢文青吴红兵章玉成彭萍萍宁安宁
Owner SGIS SONGSHAN CO LTD
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