Sodium hydroxide

Sodium hydroxide Property

mp : 681 °C(lit.) bp : 145 °C density : 1.515 g/mL at 20 °C vapor density : <1 (vs air) vapor pressure : 1 mm Hg ( 745 °C) refractive index : 1,473-1,475 Fp : 176-178°C storage temp. : 2-8°C solubility : H2O: 1 M at 20 °C, clear, colorless form : beads Water Solubility : SOLUBLE Decomposition : 176-178 ºC Sensitive : Air Sensitive & Hygroscopic Merck : 14,8627 CAS DataBase Reference: 1310-73-2(CAS DataBase Reference) NIST Chemistry Reference: Sodium hydroxide(1310-73-2) EPA Substance Registry System: Sodium hydroxide (Na(OH))(1310-73-2)

Safety

Hazard Codes : C,Xi Risk Statements : 36/38-35-34 Safety Statements : 26-45-37/39-24/25-36/37/39 RIDADR : UN 1824 8/PG 2 WGK Germany : 1 RTECS : TT2975000 F : 8 HazardClass : 8 PackingGroup : II Hazardous Substances Data: 1310-73-2(Hazardous Substances Data)

Sodium hydroxide Chemical Properties,Usage,Production

Chemical Properties White solid Usage basic and important chemical feed.used asm textiles industry,printing, detergent,paper-making, soap-mak inmetallurgy, glass enamel,medica mentoil-refining and making synthetic fiber,plastics,and many kinds of organic-mediacy, Usage Choline acetyltransferase substrate. General Description A white solid. Corrosive to metals and tissue. Used in chemical manufacturing, petroleum refining, cleaning compounds, drain cleaners. Air & Water Reactions Soluble in water. Dissolution can liberate enough heat to cause steaming and spattering and ignite adjacent combustible material [Haz. Chem. Data 1966]. Reactivity Profile CAUSTIC SODA (Sodium hydroxide) is a strong base. Reacts rapidly and exothermically with acids, both organic and inorganic. Readily absorbs moisture from the air to give caustic semi-solids that attack aluminum and zinc with the evolution of flammable hydrogen gas. Catalyzes the polymerization of acetaldehyde and other polymerizable compounds; these reactions can occur violently, for example, acrolein polymerizes with extreme violence when put in contact with alkaline materials such as sodium hydroxide [Chem. Safety Data Sheet SD-85 1961]. Reacts with great violence with phosphorus pentaoxide when initiated by local heating [Mellor 8 Supp.3:406 1971]. Contact (as a drying agent) with tetrahydrofuran, which often contains peroxides, may be hazardous---explosions have occurred in such a use of the chemically similar potassium hydroxide [NSC Newsletter Chem. Soc. 1967]. Mixing with any of the following substances in a closed container caused the temperature and pressure to increase: glacial acetic acid, acetic anhydride, acrolein, chlorohydrin, chlorosulfonic acid, ethylene cyanohydrin, glyoxal, hydrochloric acid (36%), hydrofluoric acid (48.7%), nitric acid (70%), oleum, propiolactone, sulfuric acid (96%) [NFPA 1991]. Accidental contact between a caustic cleaning solution (probably containing sodium hydroxide) and Pentol caused a violent explosion. [MCA Case History 363(1964)]. Heating with a mixture of methyl alcohol and trichlorobenzene during an attempted synthesis led to a sudden increase in pressure and an explosion [MCA Guide for Safety Appendix 3 1972]. Hot and/or concentrated NaOH can cause hydroquinone to decompose exothermically at elevated temperature. (NFPA Pub. 491M, 1975, 385) Health Hazard Strong corrosive action on contacted tissues. INHALATION: dust may cause damage to upper respiratory tract and lung itself, producing from mild nose irritation to pneumonitis. INGESTION: severe damage to mucous membranes; severe scar formation or perforation may occur. EYE CONTACT: produces severe damage. Fire Hazard Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Sodium hydroxide Preparation Products And Raw materials

Raw materials Caustic Soda(liquid)30％-48％　 CALCIUM CARBONATE Calcium oxide Barium chloride dihydrate Calcium chloride Sodium chloride Boron tribromide Barium chloride Calcium chloride hexahydrate Sodium polyacrylate Sodium carbonate

Preparation Products Sodium pyroantimonate Disodium tartrate dihydrate dibenzyl biphenyl polyoxyethylene ether additive AC1210 2-(4,6-diamino-1,3,5-triazin-2-yl)acetic acid 2', 3'-ribonucleotide 3-(Acetylamino)thiophene-2-carboxylic acid 2-(1-Naphthalenyloxy)propanoic acid 3-Fluoro-4-hydroxybenzaldehyde emulsifier C^{8～10^} OPE-10 thiourea-formaldehyde resin 2-THIOPHENECARBOXYLIC ACID SODIUM SALT 11-Oxahexadecan-16-olide 4-METHYL-2-PHENYL-1,3-THIAZOLE-5-CARBOXYLIC ACID calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate] DL-4-HYDROXY-3-METHOXYMANDELIC ACID emulsifier SOPE-20 dodecyl phenyl polyoxyethylene (12) ether 6-AMINO-5-BROMOPYRIMIDIN-2(1H)-ONE C^{12～18^} fatty alcohol polyoxyethylene (35) ether Alkaline Treated Starch castor oil poloxyethylene (30) ether 5,5-DIETHYLBARBITURIC ACID SODIUM SALT Tricobalt tetraoxide Sodium lactate Sodium isoamylxanthate SODIUM PHOSPHOTUNGSTATE 2-HYDROXY-1-NAPHTHOIC ACID STRONTIUM HYDROXIDE OCTAHYDRATE C^{8～9^} alkyl phenyl polyoxyethylene (18) ether QUINUCLIDINE HYDROCHLORIDE SODA LIME SAFFLOWER YELLOW SODIUM STANNATE TRIHYDRATE 2,3-DIPHENYLPROPIONIC ACID Sodium O-isobutyl dithiocarbonate Peregal O-25 1-[(Benzyloxy)carbonyl]piperidine-4-carboxylic acid 2-AMINO-4,6-DIMETHOXY-1,3,5-TRIAZINE BENZYL 1-PIPERAZINECARBOXYLATE

Sodium hydroxide Suppliers      Global( 480)Suppliers      Australia 1 BELGIUM 2 CANADA 3 CHINA 328 CZECH REPUBLIC 1 Europe 4 GERMANY 9 Greece 2 INDIA 4 JAPAN 10 Poland 1 Slovakia 1 South Korea 1 SWITZERLAND 2 Thailand 1 UNITED KINGDOM 16 USA 94 Global 480

Supplier Tel Fax Email Country ProdList Advantage Spectrum Chemical Manufacturing Corp. 021-67601398-808 021-57711696 gduan@spectrumchina.net CHINA 9357 60 Sino Chem Mongolia Alliance Ltd. +86-131-10056998 +86-022-23686656 sinongolia-chem@163.com CHINA 10 60 Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333 021-50323701 sale@aladdin-e.com CHINA 24330 65 Shanghai Macklin Biochemical Co.,Ltd. 021-51821861 021-51821727 sales@macklin.cn CHINA 9960 55 Codow Chemical Co.,Ltd. +86-20-38056109 / 3892 1903 +86-20-6261 9665 sales@hwhg.com.cn CHINA 18473 55 J & K SCIENTIFIC LTD. -- -- jkinfo@jkchemical.com;market3@jkchemical.com CHINA 96847 76 Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com CHINA 40407 62 Alfa Aesar 400-610-6006; 021-67582000 021-67582001/03/05 saleschina@alfa-asia.com CHINA 30333 84 TCI (Shanghai) Development Co., Ltd. -- -- info@chemicalbook.com CHINA 22159 81 Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820 86 (10) 60270825 dtftchem@sina.com CHINA 4703 62