1) Metasilicate
[,metə'silikit]
偏硅酸
1.
In October1992 and April 1993,through the monitoring analysis of two mineral water well and the ap-preciation by the Ministry of Geology and Mineral Resources,Ministry of Light Industry,Ministry of Public Health and some the department of function,it belongs to strontium-metasilicate-bicarbonate-Ca-Mg type of potable natural mineral water.
经１９９２年１０月、１９９３年４月对两处矿泉水井检测分析，并经地质矿产部、轻工业部及卫生部等职能部门联合鉴定，属锶偏硅酸—重碳酸钙—镁型饮用天然矿泉水。
2.
Initial results show that the water of the 2 wells is clean and transparent, pleasant in taste, and containing metasilicate and sodium ions, that the tested items reach the national standard of drinking minerals, and that it is a type of natural metasilicate mineral water.
为了查明莲花山水质的水文地质、化学成分特征和应用价值,先后对清心泉、灵龟吐液进行6次观察和2次水质分析,初步证实:两口井水质清沏明亮,口感好,富含偏硅酸和钠离子,现已测定的各项指标均达到国家饮用矿泉水标准,是一种饮用天然偏硅酸矿泉水。
3) sodium metasilicate
偏硅酸钠
1.
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。
2.
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。
3.
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。
4) cadmium metasilicate
偏硅酸镉
5) calcium metasilicate
偏硅酸钙
6) luminescence stimulated by Bi~(3+)ion
偏硅酸锶
补充资料：偏硅酸
H2SiO3 分子偏硅酸量78．10
透明玻璃状发亮固体。密度2．1-2．3g／cm3。溶于氢氟酸、氢氧化钾或氢氧化钠溶液，不溶于水和其他无机酸。加热到150℃分解为二氧化硅。能与氢氟酸激烈反应并分解。
硅酸原称偏硅酸，是一种二元弱酸，电离平衡常数K1=2×10-10(室温)。不溶于盐酸、硫酸，溶于氢氟酸。溶于氢氧化钾或氢氧化钠溶液，生成硅酸钾K2SiO3或硅酸钠Na2SiO3和水。熔点为150℃(分解)。加热到150℃以上时分解为二氧化硅和水，二氧化硅是硅酸酐。用做气体和蒸气的吸收剂、催化剂或做其它催化剂的载体。由于二氧化硅不跟水化合，所以硅酸主要通过硅酸盐溶液跟强酸反应制得。
应用领域 用于气体及蒸气的吸附，油脂、蜡的脱色，催化别及其载体的制备。还用作生产钨丝的熔剂，分析化学上的化学试剂、接触剂和色谱分离的吸附剂，制造硅胶和硅酸盐的原料。另外，在分析化学中能将不溶性氮化物如氟化钙、氟化铝转变为可溶性溶液，进行氟的测定。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条