2007年4月29日星期日

pingpang: Nitric acid

pingpang: Nitric acid

pingpang: DIMETHYLAMINE (DMA)

pingpang: DIMETHYLAMINE (DMA)

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我喜欢的乒乓球星-孔令辉



人物信息
姓名:孔令辉
性别:男
英文名:
出生年月日:1975.10.18
身高:1.74米
体重:67公斤
国籍:中国
籍贯:黑龙江
项目:乒乓球



孔令辉简介

 孔令辉6岁开始打球,1986年进入省队,1988年进国青队,1991年入选国家队。历年来在国际乒联公布的世界男单排名前列,是世界杯、世锦赛和奥运会的大满贯冠军得主。
  孔令辉属于典型传统直拍快攻结合欧洲横拍进攻型打法,两面拉弧圈,稳中见狠,有极好的战术素养。右手横握球拍,弧圈球结合快攻打法,正手抽杀力量大。他球感好,球速快,善打多回合,能够在相持中偷袭变线,整体技术全面。
  1991年全国锦标赛男团冠军;
  1993年七运会男双第三名(与王永刚);
  1994年第2届世界青年锦标赛男单、男团冠军;中国公开赛男单、男双冠军;全国精英赛男单第三名;中国乒协杯男双冠军;韩国大奖赛男单冠军;1994年第12届亚锦赛男单、混双(与邓亚萍)、男团冠军;第12届亚运会混双(与邓亚萍)、男团冠军;意大利公开赛男双冠军(与张雷);瑞典公开赛男团亚军;
  1995年中国明星赛男单、混双冠军(与邓亚萍);第43届世乒赛男团、男单冠军、混双亚军(与邓亚萍);爱普生世界明星赛男单冠军;中国大奖赛男单冠军;世界杯男单冠军;第3届城运会男单冠军,男双第三名(与张鹏);亚洲杯团体赛男团冠军;
  1996年中国乒协杯男双(与刘国梁)、男单冠军;第26届奥运会男双冠军(与刘国梁);首届国际乒联职业巡回赛总决赛男单冠军;亚锦赛男单、男双冠军;
  1997年第44届世乒赛,与王涛、刘国梁、丁松和马文革合作,获团体比赛冠军;男双冠军(与刘国梁)、混双亚军(与邓亚萍)、男单并列第三名;美国公开赛男单冠军;中国大奖赛男双冠军(与刘国梁);八运会男团亚军;美国、马来西亚公开赛男单冠军;国际乒联总决赛男单冠军;
  1998年爱立信中国乒乓球擂台赛冠军并成为男子总擂主;马来西亚公开赛男单、男双(与刘国梁)亚军;日本公开赛男单冠军;全国俱乐部甲级联赛男团第3名;澳大利亚公开赛男单、男双(与刘国梁)冠军;中国公开赛男双第3名(与刘国梁);全国锦标赛男单冠军;第13届亚运会男团、男双(与刘国梁)冠军、男单并列第3名;
  1999年爱立信中国乒乓球擂台赛决赛男子亚军;第45届世乒赛男双冠军;亚洲12强赛冠军;
  2000年第45届世乒赛男团亚军;世界男子俱乐部团体冠军;日本公开赛男双冠军,男单第三;第26届奥运会男单冠军、男双亚军;
  2001年第46届世乒赛男团冠军,男单、男双亚军。
  2002年第14届亚运会男团冠军,男单、男双第三;美国、德国、荷兰公开赛男双冠军,国际乒联总决赛男双冠军;
  2003年第47届世乒赛男双亚军(与王皓),男单四强,韩国公开赛男单、男双四强,中国公开赛男双亚军,马来西亚公开赛男单四强、男双冠军;
  2004年第47届世乒赛男团冠军,希腊公开赛男双亚军。

Nitric acid

Nitric acid

Agriculture: Nitric acid processing trends Nitric acid processing trendsAccording to Merchant Research & Consulting Ltd (UK) consulting agency, the current global market for adipic acid is pretty well supplied, and the demand for industrial chemicals has been steadily growing. [ClickPress, Tue Mar 27 2007] According to Merchant Research & Consulting Ltd (UK) consulting agency, the current global market for adipic acid is pretty well supplied, and the demand for industrial chemicals has been steadily growing. The global demand for industrial chemicals based on nitric acid grows by an average of 7% per year. The production of industrial chemicals based on nitric acid a€“ adipic acid, TDI, nitrobenzene a€“ is located mainly in Western Europe and USA, with a recent output expansion shift to eastern Asia. In India, the market for concentrated nitric acid has been developing at a quick pace (7% a year). Apart from the use of concentrated nitric acid by military enterprises, this product is applied in the manufacture of nitro-aromatic compounds, acrylonitrile fibre, pesticides, medicines, pigments. The highest growth of nitric acid consumption occurs in such sectors as pharmaceuticals and pesticides. The global nitric acid output tops 750-800m tons, only 15-20% of which enters the market and about 8-10% is involved in foreign trade. The remaining nitric acid is consumed by producers of nitric fertilizers, adipic acid, and other chemicals. Nitric acid is a basic chemical for the manufacture of the majority of nitrogen-containing products: up to 75-80% of nitric acid is used to obtain ammonium nitrate and calcium-ammonium nitrate, carbamide-ammonium nitrates, magnesium-ammonium nitrate, as well as various nitrogenous, phosphoric and potassium fertilizers. This market research report also features the following information: Nitric acid applications; World market for nitric acid; Development trends and modern technologies of the manufacture of chemicals based on nitric acid; etc.

dimethylformamide

dimethylformamide

Safety data for dimethylformamide The information on this web page is provided to help you to work safely, but it is intended to be an overview of hazards, not a replacement for a full Material Safety Data Sheet (MSDS). MSDS forms can be downloaded from the web sites of many chemical suppliers. GeneralSynonyms: N,N-dimethylformamide, dimethyl formamide, N-formyldimethylamine, DMF, U-4224, DMFA, NSC 5356 Molecular formula: HCON(CH3)2 CAS No: 68-12-2 EC No: 200-679-5 Annex I Index No: 616-001-00-X Physical dataAppearance: colourless liquid with slight ammonia odour Melting point: -61 C Boiling point: 153 C Vapour density: 2.5 Vapour pressure: 2.6 mm Hg at 20 C Specific gravity: 0.95 Flash point: 58 C Explosion limits: 2.2% - 15.2% Autoignition temperature: 445 C StabilityStable. Incompatible with strong oxidizing agents, halogenated hydrocarbons, chloroformates, active halogen compounds, strong acids, strong reducing agents, rubber, leather. ToxicologyHarmful by inhalation, ingestion or skin contact. May act as a carcinogen. Ingestion or absorption through skin may be fatal. Exposure may result in foetal death. Long-term exposure may result in kidney or liver damage. Irritant. Toxicity data ORL-RAT LD50 2800 mg kg-1 IPR-RAT LD50 1400 mg kg-1 IVN-RAT LD50 2000 mg kg-1 IPR-RBT LD50 1000 mg kg-1 Risk phrases R20 R21 R36 R61.Transport informationUN No 2265. Packing group III. Hazard class 3.0. Personal protectionSafety glasses. Good ventilation. Safety phrases S45 S53.

DIMETHYLAMINE (DMA)

DIMETHYLAMINE (DMA)
Properties Application Areas

Rayon Industry

Used as a modifier in the manufacture of Viscose Rayon Filament and Tyre Cord, to improve the tensile strength.
Agro Chemicals

As a raw material to manufacture Isoproturon,one of the most effective and widely used Systemic Weedicide.As a raw material in manufacturing Ziram (Zinc Dimethyldithiocarbamate), Thiram (Tetra methyl thirum disulphide)and Sodium or Potassium dimethyldithiocarbamate which are effective for protection of crops from pathogenic fungi.As an intermediate or catalytic agent to manufacture Aldicab (Temik)Systemic Insecticide to control insects,mites and nematodes.To manufacture Herbicides like 2,4-D &2,4-5 T dimethylamine salts,urea derivatives like Diuron,Monuron,Chloroxuron,Fenuron,etc.
Solvent

As a raw material for the manufacture of powerful and versatile solvents like Dimethyl Acetamide (DMAC), Dimethyl formamide (DMF), Hexamethyl phosphoramide used in acrylic fibre, pharmaceutical and other industries.
Pharmaceuticals

To manufacture Anaesthetics like Pentocaine based on Dimethyl Aminoethanol, Tranquilizers like Sparine and Local Anaesthetics like Tetracaine. Used to manufacture Antihistamines like Diphenhydramine, Mepyramine Maleate (Anthisan), Chlorpheniramine, Pheniramine.DMA is also used extensively in manufacture of Antibacterial like Trimethoprim.
Rubber Chemicals

As a raw material to manufacture Vulcanisation Accelerators such as Tetra Methyl Thiuram Disulphide (TMTDS), Zinc Dimethyldithiocarbamate, Sodium Dimethyldithiocarbamate and Potassuim Dimethyldithiocarbamate.
Dyes

Used in the manufacture of Acid Dyes and Stilbene Dyes.
Ion Exchange

Used in manufacture of water purification Ion Exchange Resins like Quaternary Ammonium salts based on Chloromethylated styrene copolymer and Dimethylammino ethanol.
Propellant

As a raw material to manufacture 1.1-Dimethyl Hydrazine.
Miscellaneous

Used to manufacture Emulsifying Agent like Dimethylaminoethanol, 2Amino, 2-Methyl- 1 Propanol. Surfactant like Lauryl Dimethylamine oxide. Quaternary Ammonium compounds, which act as germicides.
Storage

DMA anhydrous should be stored in suitably designed pressure vessel.DMA solution drums should be stored in cool,well ventilated area away from sources of ignition.Avoid contact with copper and its alloys.
Packing

DMA (Anhydrous)is offered in bulk road tankers.DMA solutions are available in, i.e. 40% in 170 kg (net wt.), 50% in 160 kg, 60% in 155 kg mild steel drums and also in bulk road tankers.Small quantities of Anhydrous material can also be made available on request, in cylinders provided by customer.
Health & Safety

Dimethylamine is irritating to skin, eyes and the mucous membrane. In case of contact, affected area to be washed with plenty of water atleast for 15 minutes.In case of inhalation,victim should be moved to fresh air and oxygen should be administered. In case of ingestion, victim should be made to consume copious quantity of milk and water. Medical advice should be sought at once. Personal protective equipment should always be used while handling.

Packing Groups:
DMA (Solution) II
If you require any more information on the product, please fill in the product enquiry form.

Disclaimer : All data, statements and recommendations contained in this publication are based upon the information available and are believed to be reliable. However, all such data, statements and recommendations are given gratis and Alkyl Amines Chemicals Ltd. assumes no obligation or liability, and makes no warranty, either express or implied, with regard to the data, statements and recommendations given or the application of the products covered in this publication, or the results obtained; all such data, statements and recommendations being given and accepted at the user's risk. Nothing printed in this publication is to be construed as permission, or a recommendation, to practice any patented invention without a license.