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Method for determining antimony content in antimony oxide master batch by cerous sulfate titration method

A technology of antimony oxide masterbatch and cerium sulfate, applied in the direction of chemical analysis by titration method, chemical method analysis, measuring device, etc., can solve the problems of unsuitable detection of antimony oxide masterbatch, shorten the detection time, facilitate operation, and achieve high results stable effect

Pending Publication Date: 2022-03-29
广西华锑科技有限公司
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Problems solved by technology

[0007] The present invention provides a method for measuring antimony content in antimony oxide masterbatch by cerium sulfate titration method, so as to solve the problem that the prior art is not applicable to the detection of total antimony in antimony oxide masterbatch, and it is necessary to seek a new method suitable for antimony oxide masterbatch Practical Technical Problems in the Detection Method of Total Antimony in Medium

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  • Method for determining antimony content in antimony oxide master batch by cerous sulfate titration method
  • Method for determining antimony content in antimony oxide master batch by cerous sulfate titration method
  • Method for determining antimony content in antimony oxide master batch by cerous sulfate titration method

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Embodiment Construction

[0034] The present invention will be described below in conjunction with specific embodiments.

[0035] 1 Test part

[0036] 1.1 Reagents

[0037] 1.1.1 Potassium sulfate

[0038] 1.1.2 Sulfuric acid (ρ is 1.84g / mg)

[0039] 1.1.3 Hydrochloric acid (ρ is 1.19g / mg)

[0040] 1.1.4 Hydrazine sulfate

[0041] 1.1.5 Hydrochloric acid (1+1)

[0042] 1.1.6 Aqueous solution of methyl orange (1g / l)

[0043] 1.1.7 Cerium sulfate standard titration solution [Cc e (so 4 ) 2 About 0.1mol / L].

[0044] 1.1.7.1 Preparation: Weigh 40g of cerium sulfate [Ce(SO4) 2 ·H 2 O], placed in a 1000mL beaker, add water to make a paste, add 100mL of concentrated sulfuric acid and stir evenly, heat on an electric furnace at low temperature to dissolve into a paste, and emit white smoke of sulfuric acid for 20min, take it off and cool, slowly add 140mL of sulfuric acid (1 +1), stir to dissolve until clear, cool, transfer to a 1000mL volumetric flask, dilute to the mark with water, and mix well. ...

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Abstract

The method comprises the following steps: (1) putting the antimony oxide master batch into a bottle, adding potassium sulfate and sulfuric acid, heating and dissolving on an electric furnace, taking down and slightly cooling, adding a reducing agent for reduction without shaking, and taking down and cooling when small bubbles in the solution disappear and thick white smoke is emitted to a bottle opening; (2) adding water along the bottle wall, uniformly shaking, heating and boiling, taking down and slightly cooling, adding hydrochloric acid, uniformly shaking, heating and taking down to prepare a heating solution; (3) adding an indicator into the heating liquid prepared in the step (2), uniformly shaking, keeping the temperature of the heating liquid, and dropwise adding a cerous sulfate standard titration solution until the red color of the solution just disappears, thereby obtaining an end point; and (4) calculating the mass fraction omega sb of antimony. The method is simple, reliable, convenient to operate and stable in result, can meet the requirement for analyzing the content of antimony in the antimony oxide master batch, and effectively solves the practical technical problem that the prior art is not suitable for detecting the total antimony in the antimony oxide master batch.

Description

【Technical field】 [0001] The invention belongs to the technical field of antimony content detection, and in particular relates to a method for measuring antimony content in antimony oxide masterbatches by cerium sulfate titration. 【Background technique】 [0002] With the development of my country's economy, the amount of polymer materials such as plastics and rubber has increased rapidly, and flame retardants have now become one of the important additives for plastic processing. The content of antimony in antimony oxide masterbatch has an important influence on the flame retardant synergistic effect. In order to ensure the product quality in the production process, the detection of antimony in antimony oxide masterbatch is particularly important. [0003] However, there is no detection method for total antimony in antimony oxide masterbatch in the industry at present, and the existing detection method for antimony oxide content disclosed is not suitable for the detection of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/79G01N31/16
CPCG01N21/79G01N31/162Y02P10/20
Inventor 肖丽霞雷圆黄莉丹黄进贵陈铭汕
Owner 广西华锑科技有限公司
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