Aromatic sulfo antimonic acid ester, and preparation method and application thereof
A thioantimonate, aromatic technology, applied in the direction of antimony organic compounds, etc., can solve the problems of poor ultraviolet light resistance and other problems, and achieve the effect of good thermal stability, excellent light stability and good processing performance.
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Embodiment 1
[0053] First put 23.6g of p-methylaniline and 111.5g of hydrochloric acid solution in the reaction flask, after they are fully dissolved, start stirring, and gradually add 37.2g of sodium nitrite solution, keep the reaction temperature at 0-5°C under ice cooling, When the mixture is reacted until the starch potassium iodide test paper turns blue, it is the end point of the reaction, and a mixed solution containing p-methylaryl diazo compounds is obtained;
[0054] Take 29.2g antimony trioxide powder, mix 16g sodium hydroxide and 50g water, stir and heat to 40°C, react until it becomes a uniform emulsion state, add the mixture containing p-methylaryl diazo compound obtained in the above reaction solution and 6g of cuprous chloride, reacted for 1 hour, then heated to 60°C for nitrogen release reaction for 3 hours, filtered to obtain an aqueous solution of p-methylaryl sodium antimonate, then treated with 18wt% hydrochloric acid to pH=2, filtered, The filter cake was dried to obt...
Embodiment 2
[0056] First put 24.6g of p-methylaniline and 125.7g of hydrochloric acid solution in the reaction flask, after they are fully dissolved, start stirring, and gradually add 38.9g of sodium nitrite solution, keep the reaction temperature at 0-5°C under ice cooling, When the mixture is reacted until the starch potassium iodide test paper turns blue, it is the end point of the reaction, and a mixed solution containing p-methylaryl diazo compounds is obtained;
[0057] Take 29.2g antimony trioxide powder, mix 16.4g sodium hydroxide and 55g water, stir and heat to 45°C, react until it becomes a homogeneous emulsion state, add the p-methylaryldiazo compound obtained in the above reaction Mixed solution and 7g of cuprous chloride, reacted for 1.5 hours, then heated to 65°C for nitrogen release reaction for 3.5 hours, filtered to obtain p-methylaryl sodium antimonate aqueous solution, then treated with 18wt% hydrochloric acid to pH = 3, filtered , the filter cake was dried to obtain 44...
Embodiment 3
[0059] First, 30.6g of p-ethylaniline (Kunshan Gongchuang Chemical Co., Ltd.) and 146.0g of hydrochloric acid solution were placed in the reaction flask. After it was fully dissolved, the stirring was started, and 42.3g of sodium nitrite solution was gradually added, and kept under ice cooling. The reaction temperature is 0-5°C. When the mixture is reacted until the starch potassium iodide test paper turns blue, it is the end of the reaction, and a mixed solution containing p-ethylaryldiazo compound is obtained;
[0060] Take 29.2g antimony trioxide powder, mix 17.2g sodium hydroxide and 65g water, stir and heat to 50°C, react until it becomes a uniform emulsion state, add the p-ethyl aryl diazo compound obtained in the above reaction The mixed solution was reacted with 9g of ferric chloride for 2 hours, then heated to 70°C for nitrogen release reaction for 4 hours, filtered to obtain an aqueous solution of p-ethylaryl sodium antimonate, then treated with 18wt% hydrochloric aci...
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