sodium dichromate

Pretreatment of arsenical refractory gold concentrate -(I) Leaching by sodium dichromate;

含砷难处理金矿预处理研究——(Ⅰ)重铬酸钠浸出法

The solution of sulfuric acid was added dropwise to the reaction vessel contained 1,3-dichloro-2-propanol,sodium dichromate and water.

将硫酸水溶液滴加到1,3-二氯-2-丙醇与重铬酸钠水溶液的混合物中,在温度23~27℃的条件下搅拌反应5 h,重铬酸钠∶1,3-二氯-2-丙醇=1∶2(摩尔比),此条件下收率为79。

It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature.

介绍了一种制取铬酸钙的新方法,利用重铬酸钠溶液分解碳酸钙,可以得到高纯度的铬酸钙。

It is an oxidationreduction reaction between sodium bichromate solution and sulphur dioxide gas in the reduction tower.

详细描述了一种碱式硫酸铬制备方法,重铬酸钠溶液与二氧化硫气体在还原塔内进行氧化还原反应,经调整碱度后用离心雾化式喷雾干燥机干燥,得到优质碱式硫酸铬。

A continuous experiment of sodium diuranate precipitation from acid concentrated eluate with the velocity of 50 L/h is carried by this device.

用该设备从酸性淋洗合格液中沉淀重铀酸钠 ,进行了每h处理 5 0L的连续试验 ,结果表明 ,所得重铀酸钠晶浆的过滤、脱水性能良好 ,产品质量达到新的铀浓缩物一级品质量标

Sodium dichromate for industrial use

GB/T1611-1992工业重铬酸钠

Feasible Analysis of Producing Sodium Dichromate from Used Chromic Residue Phosphate;

利用磷酸铬渣生产重铬酸钠的可行性分析

cotton lead chromate

棉铬酸铅处理（先用醋酸铅再用重铬钠或钾处理）

Potassium dichromate titration method was used for determining sodium lactate in compound sodium lactate injection.

用重铬酸钾法测定复方乳酸钠注射液中的乳酸钠，方法简便、速，准确。

Preliminary Studies on Electrosynthesis Chromic Anhydride from Sidium Chromate;

铬酸钠电化学合成铬酸酐的初步研究

disodium chromotropate dihydrate

铬变素磷酸氢二钠(二水合物)

Investigation of the kinetics of the hydrothermal reduction of sodium chromate with starch

淀粉水热还原铬酸钠过程动力学研究

ammonium bichromate

【化】重铬酸铵，感光剂之一

gum bichromate process

树胶重铬酸盐印相法

bichromated albumen process

重铬酸盐蛋白蚀刻法

Direct Determination of COD_(Cr) by K_2Cr_2O_7 Depigmentation and Cr_2(SO_4)_3 Spectrophotomety

重铬酸钾褪色法和硫酸铬显色法直接测定COD_(Cr)

Study on determination of zinc in polyethylene glycol-eriochrome black T-sodium sulfate aqueous two-phase system

聚乙二醇-铬黑T-硫酸钠双水相中锌的测定

Golgi's osmiobichromate solution

高尔基氏锇酸重铬酸钾溶液

The proof is recoated with dichromate emulsion.

将这张校样重新涂以重铬酸盐乳剂。

Chemical reagent--Sodium pyrosulfite

GB/T15900-1995化学试剂偏重亚硫酸钠(焦亚硫酸钠)

Well, we'll ship the bichromate in steel drums and the chromic anhydride in oil cans.

嗯，我们会把重铬酸盐用钢桶装，而无水铬酸则用油罐装。

Experimental Study of the Transplantation of Alginate-Chitosan-Alginate Encapsulated Bovine Chromaffin Cells for Analgesia;

海藻酸钠-壳聚糖-海藻酸钠微胶囊包封牛嗜铬细胞移植镇痛的实验研究

Chemical reagent--Ammonium dichromate

GB/T656-1977化学试剂重铬酸铵