可以用碱和小苏打试试,可以去痘,不知道去痘印有没有用,实质差不多吧!
化学磨版用强酸或强硷溶液在平版印版的版面上腐蚀,造成幼细微粒表面。
当用碱量和浆料卡伯值相同时,相思木与桉木相比有较高的浆料得率。
抗碱性,起到封闭作用,避免墙体基面碱性物质对面层乳胶漆的破坏。
方法将洛美沙星、替硝唑和酸、碱组分分别制成干燥品,整粒、混合后压片。
处理的温度高,易产生白色斑点,碱雾逸出造成环境污染;
换句话说,整个能级谱恰好就像是上下颠倒的碱金属能级谱一样。
以强碱与废白土含的油按化学计量比进行皂化反应可得一种洗涤膏。
本发明涉及一种氯化氢合成、碱浓缩的生产方法及装置。
尼拉贡戈火山的熔岩是由富碱的火山岩石构成的;其不同寻常的成分也许是该火山岩浆流动性较为特殊的一个成因。
锡能溶于强碱性溶液;在氯化铁、氯化锌等盐类的酸性溶液中会被腐蚀。
理论值即硫酸与矿石中锂、钠、钾等碱金属反应生成相应的硫酸盐的理论用量。
天空很蓝、空气干净、自来水不像以前那样含那么多碱,显然污染问题解决得不错。
碱加入细胞悬浮液中后和细胞壁进行了多种反应,包括使磷脂皂化。
经相同的碱煮工艺进行验证后分析得出,预氧处理是一种对黄麻纤维有效的预处理方式。
介绍了全国麦草浆碱回收的生产情况及技术装备方面取得的新进展。
本发明可以简单而且有效的去除碱液中的油份,可用广泛应用在脱脂机组中。
以霞石正长岩为代表,研究了含碱集料对碱-硅酸反应膨胀的影响。
随着人们环保意识的增强,人们正研究用固体酸碱替代液体酸碱。
结果红花黄色素易溶于水和乙醇;对酸、碱、金属离子及光照等稳定。
结果表明,亚麻落麻的失重率和分裂度随着烧碱浓度的提高而增加;
水性油墨中的颜料必须耐碱性强、遮盖力高、色浓度高、易分散。
通过钙碱指数(CA)和铝饱和指数(ASI)的计算,可以大体获知花岗岩的岩浆类型。
1·The optimal conditions for synthesis of alkali green 4 include the carbamide and zinc chloride as catalyst, chloranil and bichrome.
合成碱绿色4的最佳条件包括:尿素和氯化锌作为催化剂,四氢呋喃和双色。
2·The extremely salty, alkali lake holds little life, but its waters are a favorite spot for wading birds.
其味极咸,碱湖保存了湖中的小生命,但其水域仍为涉水鸟所喜欢的地方。
3·Also there are many ancient trees, which would have been damaged by the alkali from the cement. We have had to install a special irrigation system.
还有,这里有许多古树,水泥的碱会损坏这些它们,我们不得不安装一个特殊的灌溉系统。
4·By adding baking powder this consists of an alkali and an acid, and.
加入发粉(烘烤粉)。发粉由酸和碱组成,能产生一定量的二氧化碳。
5·To get similar characteristics from composites, the carbon fibres are first chemically treated with an alkali which creates lots of tiny pits on their surface.
为了在复合碳材料上获取与电容器相似的性质,这种碳纤维首先经过碱化学处理以令其表面生成许多细微的凹点。
1·Another example is methyl orange, which is red in acids and yellow in alkali solutions.
另一个例子是甲基橙,它在酸性溶液中为红色而在碱性溶液中为黄色。
2·Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
根据酯在碱性条件下水解反应生成醚的原理,研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
3·PC board ban and wet cement appearance and acid, alkali touch information appearance.
P C板禁令和湿水泥外表和酸,碱性资料外表触摸。
4·HPMC is prepared when a purified form of cellulose is reacted with sodium hydroxide solution to produce a swollen alkali cellulose that is chemically more reactive than untreated cellulose.
当被净化的纤维素与氢氧化纳溶液反应产生一种膨胀碱性纤维素时,HPMC就产生了,这种纤维素在化学上比没有经过处理的纤维素更易起反应。
5·The adhesive strength of the acid film was stronger than that of the alkali film.
碱性镀层的结合强度优越于酸性镀层。
1·In the process of cleaning coffee, do not use hard brush scrub, but also to avoid the use of strong acid, alkali cleaning agent, so as to avoid scratching the surface of damaged coffee cup.
在咖啡杯的清洗过程中,严禁使用硬质的刷子刷洗,也要避免使用强酸、强碱的清洁剂,以避免咖啡杯的表面刮伤受损。
2·Wash care matters: do not clean with alkali sanding or PC board, do not use hard and dry cloth or brush appearance, avoid hair picture.
清洗留神事项:不要打磨或用强碱清洗洗p C板,不要用干硬布或硬刷子刷外表,避免发生拉毛景象。
3·Chemical graining: the lithographic plate surface is etched to produce a fine grain by the application of a strong acid or alkali solution.
化学磨版:用强酸或强碱溶液在平版印版的版面上腐蚀,造成幼细微粒表面。
4·In practice, asphalt-colloid smear was formed on copper electric parts and effectively purged by means of thermal neutralization with strong acid and alkali.
分析铜质导电零件沥青胶质油污的形成,在生产实际中采用强酸强碱热态中和法,有效地去除胶质油污。
5·The preparation method and technological conditions of ethylidennorbornene with the method of isomerization of vinylnorbornene are studied with the catalyst of solid super alkali.
研究了在固体超强碱催化下由乙烯降冰片烯异构化制取乙叉降冰片烯的工艺方法和条件。
1·Wire wound resistors are made by winding the resistance wire on the alkali less ceramic core, then coated with noncorrosice, heat-proof and humidty proof material.
把电阻线绕在无硷性耐热陶瓷件上,外面加上耐热、耐湿及耐腐蚀之材料保护固定而成。