铬酸钡

前言：目的：采用EDTA配位滴定法准确快速测硫酸钡纯度并与常用的铬酸钡容量法进行对照。

Objective : To dopt EDTA complexometry veraciously quickly measure barium sulfate purity and in contrast to barium chromate volumetric procedure .

超声-酸性铬酸钡分光光度法测定水中硫酸盐

Determination of sulfate in drinking water by ultrasonic-acidic barium chromate spectrophotometry

铬酸钡分光光度法分析土壤中水溶性硫酸盐

Measuring water - soluble sulphate in soil by Barium Chromate Spectrophotometry

铬酸钡生产中酸不溶物的去除

To Eliminate the Insoluble Impurity in Acid Solution Which Exists in Barium Chromate

所建议的铬酸钡-氧化亚砷-EDTA间接比色测定硫酸盐的分析方法具简易、快速、准确与显色十分稳定的优点，重复性及回收试验良好。

A method for indirect photometric analysis of sulphate with barium chromate-arsenous oxide-EDTA has been described .

本文从理论上分析了铬酸钡生产中酸不溶物产生的原因。

This paper analyzes the cause of insoluble impurity in acid solution which exists in barium chromate .

GB/T4920-1985硫酸浓缩尾气硫酸雾的测定铬酸钡比色法

Determination of sulphuric acid mist in tail gas in sulphuric acid concentration process & Barium chromate colorimetric method

通过离心法制备得到的铬酸钡悬浮液中残留的铬酸根离子要明显低于常规的静置沉淀法。

Chromate ions in the suspension of barium chromate prepared by centrifugation were lower significantly than normal standing precipitation .

同时发现铬酸钡的水溶物的含量对药剂抗吸湿能力有影响。

At the same time , it is found that the water-soluble content in the barium chromate has an effect on the compositions moisture absorption .

铬酸钡间接原子吸收法测定水中硫酸盐时，样品的稀释倍数、盐度、酸度对测定结果影响较大。

The sample dilution multiple , salinity and acidity heavily influence the detecting result of sulfate determinated by complex acid barium indirect flame atomic absorption spectrometry .

采用铬酸钡光度法测定SO42-，经合成标准样品验证测定结果与理论值相符，样品加标回收率为96%和98%。

The result of measuring sulfate radical by barium chromate spectrophotometry coincides with academic data of synthetical standard sample . The adding standard sample recovery of sample are 96 % and 98 % .

研制了一种新型带锈防锈漆。通过加入磷酸锌、氧化锌、三聚磷酸铝、铬酸钡等助剂，使金属带锈表面锈层磷化、钝化，形成连续、均匀、致密的保护层。

A new anti-rust paint for rusted material was developed by addition of zinc phosphate , zinc oxide , aluminum tripolyphosphate , barium chromate and other auxiliaries , which result in phosphating , and chromating of rusted metal surface to obtain continuous , uniform and fine protective film .