ammonium bisulfite 56% to 70%

Corrosion of carbon steel joint used modified J422 electrode in ammonium sulfite;

改性J422焊条电弧焊碳钢接头在亚硫酸铵溶液中的耐蚀性

The effects of the initial concentration of ammonium sulfite,the reaction temperature,the air flow rate,the concentration of catalyst of cobalt sulfate are investigated.

采用单因素实验研究了亚硫酸铵初始浓度、反应温度、空气流量、催化剂硫酸钴浓度等因素对催化氧化亚硫酸铵的效率的影响。

In order to solve the serious corrosion of carbon steel welded joint in the ammonium sulfite during papermaking process, the corrosion behavior of the carbon steel welded joints, adopting shielded metal arc welding with J422 dectrode, TIG welding and CO2 gas shielded arc welding, has been studied by three electrode electrochemical test and metallurgical structure analyses.

针对亚硫酸铵造纸过程中亚硫酸铵介质对碳钢焊接接头腐蚀严重的实际情况,以三电极电化学研究方法和金相组织分析法研究了焊条电弧焊、TIG焊、CO2气体保护焊等方法焊接的碳钢焊接接头在亚硫酸铵介质中的腐蚀行为。

However, the content of ammonium sulphite in product was a little lower.

介绍用氨法处理硫酸装置尾气生产亚硫酸铵的工艺流程、控制指标、主要设备和生产运行情况。

The process parameters of ammonium sulphite pulping are optimized.

采用4种方法对光叶楮白皮制化学浆进行了探讨,并且对光叶楮白皮亚硫酸铵法制浆工艺进行了优化,系统讨论了亚铵用量、尿素用量、蒽醌用量、液比、保温温度和时间对制浆效果的影响,确定出光叶楮白皮亚铵法制浆的最佳工艺条件为亚铵用量18%,尿素用量5%,AQ用量0。

Have the study of the experiment to the ammonium ferrous sulfate system;

对硫酸亚铁铵制备实验的探讨

Rapid determination of vanadium in steel by ammonium ferrous sulfate titration method;

硫酸亚铁铵滴定法快速测定钢铁中钒

The consideration to the preparation of potassium ferrioxalate via ammonium ferrous sulfate

硫酸亚铁铵制备三草酸合铁酸钾的思考

Improvement for titrimetric determination of chromium in steel based on ferrous ammonium sulfate oxidized by perchloric acid;

高氯酸氧化硫酸亚铁铵滴定法测定钢铁中铬的改进

Uncertainties of preparation and dilution of molybdenum standard solution,preparation of potassium dichromate and standardization of ferrous ammonium sulfate and potassium premanganate standard solution are evaluated.

以配制和稀释钼标准溶液、配制重铬酸钾标准溶液、标定硫酸亚铁铵和高锰酸钾标准溶液为例,讨论了标准溶液的配制、标定和稀释中各种不确定度因素,并评定了各种标准溶液浓度的测量不确定度。

Mn~(3+) reacted with reference reagents such as ferrous ammonium sulfate,sodium oxalate and oxalic acid.

8 mol/L硫酸介质中,以恒电流通过含有Mn2+的电解质溶液,使工作电极铂阳极上电生出Mn3+,Mn3+与溶液中待测基准试剂硫酸亚铁铵、草酸钠或草酸定量反应,以永停终点法确定库仑滴定终点,通过测量电解电流及电解时间,利用法拉弟电解定律计算基准试剂的纯度。

The ammonium sulfite oxidation outside of the tower in ammonia-desulfurization system

氨法脱硫副产物亚硫酸铵的塔外氧化

Study on Oxidation Kinetics of Ammonium Sulfite in Flue Gas Desulfurization Product;

烟气脱硫产物亚硫酸铵氧化动力学研究

Research on Corrosion of the Carbon Steel Welded Joint in the Ammonium Sulfite Solution;

碳钢焊接接头在亚硫酸铵介质中的耐蚀性研究

Study on the Corrosion Resistance of Carbon Steel Welding Seam Welded by Modified Welding Rod in the Ammonium Sulfite Solution;

改性焊条焊接碳钢焊缝在亚硫酸铵介质中的耐蚀性研究

The main products cover ammonuium sulfocyanide,sodium thiocyanate, potassium sulphocyanide, cuprous sulfocyanide etc,Calcium Thiocyanate.

主要产品有硫氰酸铵、硫氰酸钠、硫氰酸钾、硫氰酸亚铜、硫氰酸钙等。

photographic grade ammonium thiosulfhatesolution

摄影用硫代亚磺酸铵溶剂

Research on properties of ammonia-bisulfite WFGD in stone-coal fired power plant

石煤电厂氨-亚硫酸氢铵WFGD特性研究

The consideration to the preparation of potassium ferrioxalate via ammonium ferrous sulfate

硫酸亚铁铵制备三草酸合铁酸钾的思考

Solid waste--Determination of total chromium--Titrimetric method

GB/T15555.8-1995固体废物总铬的测定硫酸亚铁铵滴定法

Property research of Zn-Fe alloy plating coat in (NH_4)_2Fe(SO_4)_2 system

硫酸亚铁铵体系锌铁合金镀层的性能研究

Fast Determination of Vanadium in Vanadium-nitrogen-iron Alloy by Ammonium Ferrous Sulfate Titrimetric Method

硫酸亚铁铵滴定法快速测定钒氮铁合金中的钒

Add Ferroin indicator and titrate with 0.025 N ferrous ammonium sulphate solution.

加入亚铁菲绕啉离子，用滴定法测量硫酸亚铁铵溶液。

Vanadium--Determination of vanadium content--Potassium permanganate-ammonium ferrous sulphate volumetric method

GB/T8639.1-1988钒化学分析方法高锰酸钾-硫酸亚铁铵滴定法测定钒量

Chemical reagent--Ammonium sulfate

GB/T1396-1993化学试剂硫酸铵

ammonium dimethyl-dithiocarbamate

二甲氨基二硫代甲酸铵

Separation of copper with ammonium sulfate-ammonium thiocyanate-ethyl violet flotation system

硫酸铵-硫氰酸铵-乙基紫体系浮选分离铜

Methods for chemical analysis of chromium metal The ammonium ferrous sulfate-volumetric method for the determination of chromium content

GB/T4702.1-1997金属铬化学分析方法硫酸亚铁铵容量法测定铬量

Solid waste--Determination of chromium(VI)--Titrimetric method

GB/T15555.7-1995固体废物六价铬的测定硫酸亚铁铵滴定法