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- Keywords hydrogen cyanic acid gas defense fireproofing explosion-proof; 氢氰酸;防毒;防火;防爆;
- Safety Countermeasures for Chemical Production Equipment by Using Hydrogen Cyanic Acid as the Raw Materials 氢氰酸原料化工生产装置的安全对策
- hydrogen cyanic acid 氢氰酸
- Dec. to cyanic acid on heating without melting. 去年12月,以氰酸取暖没有融化。
- One, introductive 20 centuries 30 time are German the aggregate reaction that discovered ester of different cyanic acid and lively hydrogen compound, initiated polyurethane industry times thereby. 一、前言二十世纪30年代德国人发现了异氰酸酯与活泼氢化合物的聚合反应,从而开创了聚氨酯工业时代。
- CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid. 一种不稳定的酸,主要以易爆炸的盐和酯的形式存在,是氰酸的同质异构体。
- PU paint firming agent, PU Jiaozhanji : floating toluene two different cyanic acid resin (TDI). 聚氨酯漆固化剂、聚氨酯胶粘剂:游离甲苯二异氰酸脂(TDI)。
- Reagent of salt of sulfur cyanic acid once considered as the most effective chemistry to enhance reagent. 硫氰酸盐试剂曾经认为是最有效的化学增强试剂。
- Because of A group share (polyester is multivariate mellow) with B group share (ester of different cyanic acid) to wait equivalent chemical reaction. 因为A组份(聚酯多元醇)与B组份(异氰酸酯)为等当量的化学反应。
- Inhaling second difference cyanic acid esters would damage lung, causing headaches, bronchitis and asthma, may also give rise to individual breathing difficulties. 长期吸入二异氰酸酯将损伤肺部,引起头痛、支气管炎和哮喘,个别还可能引起呼吸困难。
- Will expire constituent of B of sole former fluid and PAPI mix, regard ester of different cyanic acid as constituent, bubble of preparation polyurethane tall spring back. 将过期鞋底原液B组分与PAPI混合,作为异氰酸酯组分,制备聚氨酯高回弹泡沫。
- The Density Function Theory(DFT)method are employed to study the geometries of the cyanic acid and isocyanic acid on the base of B3LYP/6-31+G(d)in the paper. 本文主要采用密度泛函理论(DFT)方法,在B3LYP/6-31+G(d)基础上,通过优化氰酸、异氰酸的结构,分别得到的能量为-168。
- A salt or ester of cyanic acid. 氰酸盐,氰酸酯物
- MDI (ester of cyanic acid of different of M of M phenyl firedamp and its homologue) the main raw material that is manufacturing polyurethane, basically use at freezer, refrigeratory.. MDI(M苯基甲烷M异氰酸酯及其同系物)是生产聚氨酯的主要原料,主要用于电冰箱、冷库...
- The cyanic acid ester gum is suitable for the compounded material that used for the gum knot to reunite the material, bearing the water good, do not open the gum rate attain 90% above. 异氰酸酯胶适合用于竹木复合材料的胶结,耐水性好,不开胶率达到90%25以上。
- Acid of cyanogen make water also says 3 get together cyanic acid, it is a kind of heterocyclic apperception closes matter, react for pyrolysis of raw material classics with urea and it arises. 氰尿酸亦称三聚氰酸,是一种杂环类化合物,它是以尿素为原料经热分解反应而产生的。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Nitric acid molecules are linked by hydrogen bonds. 硝酸分子以氢键互相连结。