hydrofluoric acid

1. A reaction kinetic model for synthesis of ETBE from ethanol and tertiary butyl alcohol, catalyzed by HF/ USY modified by hydrofluoric acid, was established.
   以乙醇和叔丁醇为原料、氢氟酸改性USY分子筛为催化剂合成乙基叔丁基醚，建立了反应动力学模型。
2. It is insoluble in water and acid, but dissolves in caustic soda and hydrofluoric acid without separation under high temperature.
   不溶于水及酸，深于苛性钠、氢氟酸，受高温不分解。
3. Application of Hydrofluoric Acid's Corrosive Properties in the Fabrication of Photonic Crystal Fibers
   氢氟酸填充腐蚀方法在光子晶体光纤制造中的应用
4. A salt of hydrofluoric acid.
   氢氟酸形成的一种盐。
5. Applied research of hydrofluoric acid in puring wet-phosphoric acid
   氢氟酸在湿法磷酸净化中的应用研究
6. Effect of hydrofluoric acid etching time on Ni/ 6H-SiC contacts
   氢氟酸刻蚀对Ni/6H-SiC接触性质的作用
7. Observation on the efficacy of homemade wet compressing liquid in the treatment of patients with hydrofluoric acid burn
   自制湿敷液用于氢氟酸烧伤患者的效果观察马齿苋湿敷治疗留置针致静脉炎疗效观察
8. Indeterminacy Evaluation of Silica Content Measured by Hydrofluoric Acid
   氢氟酸法测定二氧化硅含量的测量不确定度评定
9. A hydrofluoric acid corrosion resistant coatings and their application were recommended.
   介绍了一种耐氢氟酸腐蚀的涂料及其应用效果。
10. The fluorspar is mainly used in chemical industry, as main raw material to produce anhydrous hydrofluoric acid and as the basic raw material of fluoration chemistry.
    氟石在化工行业，主要用作生产无水氢氟酸的主要原材料和进行氟化处理的基本原料；
11. Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.
    表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来。
12. A colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride; solutions in water are hydrofluoric acid.
    一种无色有毒腐蚀性液体，由硫酸作用于氟化钙而制成，溶于水中形成氢氟酸。
13. A new type filler, PTFE ladder Rasching ring is designed and used in the washing tower of anhydrous hydrofluoric acid equipment, properties of this filler is also analyzed.
    设计了1种新型填料―PTFE阶梯拉西环并应用在无水氢氟酸装置的洗涤塔中，分析了该填料的特性。
14. HF And let's take an example, HF, hydrofluoric acid, all right?
    这里有个例子，氢氟酸，对吧？
15. The chemical polishing solution was composed by hydrofluoric acid: nitric acid: additional: 1: X.
    适用于口腔铸钛修复体的化学抛光液的成份和配比为：氢氟酸：硝酸：添加齐-乙1：X。
16. Steel samples were dissolved with nitric acid, hydrochloric acid and hydrofluoric acid by electrothermal heating or microwave digestion.
    钢铁样品用硝酸、盐酸、氢氟酸在电热板上加热或微波消解，溶液经稀释后未经基体分离，未加内标直接用电感耦合等离子体质谱法（ICP-MS）测定。
17. This paper reports a case of hydrofluoric acid burn complicated by inhalation injury and serious fluorine toxicosis.
    本案例为氢氟酸烧伤并气体吸入性损伤，为严重氟中毒。
18. Determination of Iron Oxide and Alumina in Export Phosphorus Rock by ICP-AES of Dissolving Sample with Hydrofluoric Acid
    氢氟酸溶样ICP-AES法测定出口磷矿石中氧化铁和氧化铝
19. The efficiency of corrosion inhibition of imidazoline derivatives containing N 、 S or O for steel in hydrofluoric acid, hydrochloric acid and citric acid is studied.
    本文研究了含N、S或O的咪唑啉衍生物对铜在无机酸和有机酸中的缓蚀效力。
20. This article establishes athwart aqua fortis-high chlorine-hydrofluoric acid decompose method which carry out former treatment, deuterium light emendation background flame atom absorbance analyse copper and plumbum in soil.
    本文建立了逆王水-高氯酸-氢氟酸分解法对土壤进行前处理，氘灯校正背景火焰原子吸收法分析土壤中铜和铅的方法。
21. The structure and processing technology of the helical components of a hydrofluoric acid pre reactor were described.
    对氢氟酸预反应器螺旋部件的结构和加工工艺进行了阐述。
22. Determination of me Concentration of Nitric Acid and Hydrofluoric Acid in Stainless Steel Pickling Baths with Direct Potentiometric Method
    用直接电位法测定不锈钢酸洗液中硝酸和氢氟酸
23. Fluorgypsum is a by-product from hydrofluoric acid and sodium aluminate fluoride processing.
    氟石膏是氢氟酸及氟铝酸钠生产过程中的副产品。
24. It reveals that the composite corrosion inhibitor is excellent in hydrofluoric acid medium.
    综上得出该复合缓蚀剂是氢氟酸介质中铝的优良缓蚀剂。
25. Compared pyrophosphate potassium process, the better qualitive coating was obtained through hydrofluoric acid activation.
    比较了氢氟酸活化工艺和焦磷酸钾活化工艺，氢氟酸活化后得到的镀层性能较好。
26. Influence of the hydrofluoric acid concentration of electrolytic solution, etching current density and etching time on the depth and surface morphology of ordered porous silicon array was studied.
    研究了电解液中氢氟酸浓度、刻蚀电流密度、刻蚀时间等条件对有序多孔硅阵列的深度和表面形貌的影响。
27. After etching by hydrofluoric acid, PAA hollow microspheres were obtained.
    经氢氟酸刻蚀后得到含偶氮苯的PAA中空微球。
28. Plenty of silica gel containing fluorine is produced when producing fluoride salt or hydrofluoric acid from fluorosilicic acid.
    当氟硅酸用来生产氟化盐或氢氟酸时也产生大量的含氟硅胶。

noun

1. a weak poisonous liquid acid