基本解释:偏酸
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This paper introduces the producing tech- nology and status of detergent builder in our country,and then analyzes the function compare of 4A zeolite,sodium metasili- cate,δ-Layered Sodium Silicate detergent builder and then proposes the 8-Layered Sodium Silicate is the best product to substitute STPP,sodium metasilicate,4A zeolite.文章介绍了国内硅化合物中各洗涤助剂的生产工艺技术及生产状况,并对4A 沸石、偏硅酸钠、δ层硅等助洗剂的性价比作了客观分析。syb汉语字典
The historical and present status of sodium metasilicate production and its development in China and foreign countries are summarized.论述了国内外偏硅酸钠的发展历史及产业现状,介绍了产品性能及应用、市场状况,生产工艺及设备对产品质量的影响也作了讨论。syb汉语字典
A low cost compounded surfactant(CS) was developed for EOR in higher temperature and middle low permeability sandstone reservoirs in Zhuangxi,Shengli,after many rounds of profile modification,in particular,and comprised mainly mixed natural carboxylates prepared of bottom cotton seed oil,modified sodium humate of lignite,sodium metasilicate,and polyether surfactant.该剂的主要成分为:用棉籽油脚制成的混合天然羧酸盐,用褐煤制成的改性腐殖酸钠、偏硅酸钠及聚醚类表面活性剂。syb汉语字典
Vapour-phase O-methylation of catechol with methanol over ammonium metatungstate exchanged hydrotalcites;偏钨酸铵柱撑水滑石上邻苯二酚与甲醇的O-甲基化反应syb汉语字典
Ammonium tungsten oxide sulfide [(NH4)2WO2S2] crystal was synthesized in aqueous solution using ammonium metatungstate (AMT) and ammonium sulfide as raw materials.本工作用偏钨酸铵和硫化铵为原料,在水溶液中合成二硫代钨酸铵晶体[(NH4)2WO2S2]。syb汉语字典
Catalytic properties of SiO2-supported ammonium metatungstate (AMT) catalysts calcined at different temperatures were investigated for the vapour-phase o-methylation of catechol with methanol.考察了SiO2负载的偏钨酸铵催化剂(AMT/SiO2)上邻苯二酚和甲醇气相单醚化反应的性能。syb汉语字典
Preparation technology and industrialization production of nanometer TiO_2 using metatitanic acid as raw material;以偏钛酸为原料制备纳米TiO_2的方法与工业生产syb汉语字典
Preparation of nano-TiO_2 powders with metatitanic acid and its photo-catalytic properties;偏钛酸制备纳米TiO_2粉体及其光催化性能研究syb汉语字典
Experimental study on flocculating fine metatitanic acid by modified polyacrylamide;改性聚丙烯酰胺絮凝细小偏钛酸的试验研究syb汉语字典
Sodium meta-aluminate and chitosan were selected.从中选择偏铝酸钠、壳聚糖,并详细研究其用量、pH对预处理效果的影响,结果显示偏铝酸钠为较合适的凝聚剂。syb汉语字典
A direct method for preparation of ultra-pure pseudo-boehmite with large specific surface area and large pore volume from sodium meta-aluminate solution obtained from Shanxi Aluminium Plant was provided.利用自制的超深度脱硅剂将山西铝厂生产的偏铝酸钠母液进行精制 ,使母液中的硅铝比 (m(SiO2 ) /m(Al2 O3 ) )和铁铝比(m(Fe2 O3 ) /m(Al2 O3 ) )稳定达到万分之一以下 ,以制取高纯拟薄水铝石 。syb汉语字典
Analysis and Counter-measures of the AAO Technological Process with Acid EffluentAAO工艺出水pH值偏酸问题分析及对策syb汉语字典
ZMA treated timber偏亚砷酸锌处理木材syb汉语字典
Optimal pH is 7.4. Above 7.4 tends to alkaline. Below 7.4 tends to acid.理想的酸碱值应该是7.4,高于7.4便是偏向碱性、低于7.4便是偏向酸性。syb汉语字典
Chemical reagent--Sodium pyrosulfiteGB/T15900-1995化学试剂偏重亚硫酸钠(焦亚硫酸钠)syb汉语字典
Market Analysis and Joint-Production Technology of Formic Acid and Sodium Hexametaphosphate;甲酸与六偏磷酸钠生产市场状况及联产新工艺syb汉语字典
Preparation of Calcium Metaborate and Sodium Perborate from Borax and Slaked Lime由硼砂和消石灰制备偏硼酸钙和过硼酸钠syb汉语字典
Preparation of sodium perborate from wastewater of calcium metaborate manufacturing由偏硼酸钙生产过程中的废液制备过硼酸钠syb汉语字典
Experimental Study on Preparation of High-purity Sodium Trimetaphosphate from Sodium Dihydrogen Phosphate由磷酸二氢钠制高纯度三偏磷酸钠的试验研究syb汉语字典
Sodium metaborate is a by-product from deoxidation of sodium borohydride.偏硼酸钠是硼氢化钠的还原副产物。syb汉语字典
Strontium and Metasilicate Natural Mineral Water of Beizhang Village in Baoding,Hebei保定市北章村锶-偏硅酸天然矿泉水syb汉语字典
Effect of Ammoniummeta Vanadate on Tissue Structure of Jejunum in Rats偏钒酸铵对大鼠空肠组织结构的影响syb汉语字典
STUDIES ON WHITE POWDERY TUNGSTIC ACID (Ⅱ)--THE PREPARATION OF VARIOUS METATUNGSTATES粉状白钨酸的研究(Ⅱ)——从粉状白钨酸制备偏钨酸盐syb汉语字典
Determination of phosphate,pyrophosphate,metaphosphate and total phosphorus in seafoods by ion chromatography离子色谱法测定海产品中磷酸盐、焦磷酸盐、偏磷酸盐和总磷syb汉语字典
DIELECTRIC PROPERTY OF BaTiO_3/PVDF COMPOSITE PREPARED BY A MELT PROCESS聚偏氟乙烯-钛酸钡复合材料的介电性能syb汉语字典
A Study of Deviation Two-order Reaction on Soap Reaction of Acetoacetyl乙酸乙酯皂化反应偏离二级反应行为的研究syb汉语字典
Research on Modified Lead Metaniobate Piezoelectric Ceramic with High Curie Temperature;偏铌酸铅高居里温度压电陶瓷的改性研究syb汉语字典
Study on the Direct Hydroxylation of Benzene to Phenol Catalyzed by Sodium Metavanadate;偏钒酸钠催化氧化苯直接制备苯酚的研究syb汉语字典
Preliminary Study on Electrochemical Reduction of Sodium Metaborate to Produce Sodium Borohydride;电化学还原偏硼酸钠制备硼氢化钠初探syb汉语字典
