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Tetramethylammonium hydroxide
Tetramethylammonium hydroxide

Tetramethylammonium hydroxide

Price USD1.00
Packge 1kg
  • Min. Order:1g
  • Supply Ability:100KG
  • Time:2019-07-06

Product Details

  • Product NameTetramethylammonium hydroxide
  • CAS No.75-59-2
  • EINECS No.200-882-9
  • MFC4H13NO
  • MW91.15
  • InChIKeyWGTYBPLFGIVFAS-UHFFFAOYSA-M
  • AppearanceSolutionAPHA: ≤10
  • Melting point °C
  • density 0.866 g/mL at 25 °C
  • Boiling point 110 °C
  • storage temp. Store below +30°C.
  • Water Solubility Soluble in water.
Tetramethylammonium hydroxide Basic information
Product Name: Tetramethylammonium hydroxide
Synonyms: N,N,N-TRIMETHYLMETHANAMINIUM HYDROXIDE;TETRAMETHYLAMMONIUM HYDROXIDE;TMAH;hydroxydedetetramethylammonium;megapositcd14;Methanaminium,N,N,N-trimethyl-,hydroxide;n,n,n-trimethyl-methanaminiuhydroxide;Tetramethylammonium hydroxide concentrate
CAS: 75-59-2
MF: C4H13NO
MW: 91.15
EINECS: 200-882-9
Product Categories: quarternary ammonium bases;Ammonium Hydroxides (Quaternary);Quaternary Ammonium Compounds;Analytical Chemistry;Esterification & Alkylation (GC Derivatizing Reagents);GC Derivatizing Reagents;Onium Hydroxides (GC Derivatizing Reagents);ACS GradeChemical Synthesis;Essential Chemicals;Organic Bases;Routine Reagents;Synthetic Reagents;Electronic Chemicals;Micro/Nanoelectronics;Semiconductor Grade Chemicals;Chemical Synthesis;Reference Material Hydrochloric acidTitration;By Reference Material;Solutions for non-aqueous titrations;Volumetric Solutions;Base ConcentratesConcentrates (e.g. FIXANAL);Concentrates (e.g. FIXANAL);Reference Material Hydrochloric acid;Titration;Reference Material Perchloric acidTitration;Base SolutionsVolumetric Solutions;Organic BasesEssential Chemicals;Reagent Grade;Atomic Absorption Spectroscopy (AAS);Digestion Reagents;Pure Reagents for Wet Digestion (Trace SELECT);AnionicHPLC;Chromatography/CE Reagents;Ion Pair;Ion Pair Reagents;Ion Pair Reagents - Anionic Concentrate;NULL
Mol File: 75-59-2.mol
Tetramethylammonium hydroxide Structure
 
Tetramethylammonium hydroxide Chemical Properties
Melting point  °C
Boiling point  110 °C
density  0.866 g/mL at 25 °C
vapor pressure  17.5 mm Hg ( 20 °C)
refractive index  n20/D 1.384
Fp  80 °F
storage temp.  2-8°C
form  Solution
color  APHA: ≤10
Water Solubility  Soluble in water.
Sensitive  Air Sensitive
Merck  14,9224
BRN  3558708
Stability: Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.
InChIKey WGTYBPLFGIVFAS-UHFFFAOYSA-M
CAS DataBase Reference 75-59-2(CAS DataBase Reference)
EPA Substance Registry System Methanaminium, N,N,N-trimethyl-, hydroxide(75-59-2)
 
Safety Information
Hazard Codes  C,T,F,T+,Xn
Risk Statements  24/25-34-20/21/22-39/23/24/25-23/24/25-10-21/22-25-21-11-67-36-52-48/24-27/28-23-35-36/38
Safety Statements  45-36/37/39-26-16-36/37-28
RIDADR  UN 3286 3/PG 2
WGK Germany  1
RTECS  PA0875000
F  4.4-10-34
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29239000
MSDS Information
Provider Language
Tetramethylammonium hydroxide English
SigmaAldrich English
ACROS English
ALFA English
 
Tetramethylammonium hydroxide Usage And Synthesis
Chemical Properties colourless to yellow liquid
Hazard Strong irritant to skin and tissue.
Safety Profile Poison by subcutaneous route. A powerful caustic. A corrosive irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of NOx and NH3.
Purification Methods It is freed from chloride ions by passage through an ion-exchange column (e.g. Amberlite IRA-400, prepared in its OH-form by passing 2M NaOH until the effluent is free from chloride ions, then washed with distilled H2O until neutral). A modification, to obtain carbonate-free hydroxide, uses the method of Davies and Nancollas [Nature 165 237 1950]. [Beilstein 4 IV 145.]
Description Tetramethylammonium hydroxide is a solid in the hydrated form or a colorless liquid with a strong ammonia-like odor. It is soluble in water, and corrosive to metals and tissue.
Uses
Industry Application Role/benefit
Organic silicon Production of dimethyl silicone oil, organic silicon resin, silicon rubber, etc. Catalyst/removed easily; no pollution to the products
Chemical analysis Polarography experiment Polarographic reagent
Thermochemolysis to study fungal degradation of wood Analytical reagent
Chemical purification Removal of metal elements Ash free alkali/source of base; make the metal elements precipitated
Electron Production of computer silicon chip Brightening agent; anisotropic etching agent; cleaning agent; photoresist developer
Printing of circuit board Cleaning agent
Semiconductor manufacturing Chemical stripper
Others Synthesis of ferrofluid Surfactant/ inhibit nanoparticle aggregation
Synthesis of zeolite Structure directing agent
 
Health Hazard TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Reactivity Profile Tetramethylammonium hydroxide acts like a base. Bases are chemically similar to sodium hydroxide (NaOH) or sodium oxide (Na2O). They neutralize acids exothermically to form salts plus water. When soluble in water they give solutions having a pH greater than 7.0. Mixing these materials with water can generate troublesome amounts of heat as the base is dissolved or diluted. Bases react with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. Bases may initiate polymerization reactions in polymerizable organic compounds, especially epoxides). They may generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. Materials of this group often serve as catalysts.
References 1.https://en.wikipedia.org/wiki/Tetramethylammonium_hydroxide#Uses
2.http://sacheminc.com/other-chemicals/tetramethylammonium-hydroxide-tmah/
3.https://www.fs.usda.gov/treesearch/pubs/15506
4.https://www.concordia.ca/content/dam/concordia/services/safety/docs/EHS-DOC-020_TMAHGuidelines.pdf
5.http://www.chemicalbook.com/ChemicalProductProperty_EN_CB2854236.htm

Company Profile Introduction

Henan CoreyChem Co., Ltd, based on the original Zhengzhou Cote Chemical Research Institute, be brave in absorbing highly educated talents & overseas returnees; actively responded to Zhengzhou City High-tech Zone Government’s Special Care Policy, reorganized and founded in National University of Science and Technology Park, which is a high-tech, stock enterprise of high-end chemical Custom synthesis;The park was created by the People's Government of Henan Province, and proved by Ministry of Education and the National Science & Technology, taking the construction mode of "many college a park, and common development", mainly depends on Zhengzhou University and Henan University’s scientific research and talent advantage to set up Universities, scientific research institute and enterprise scientific research achievements transformation platform, to make high-tech enterprises incubate,  is the new high-tech talent gathering base, high and new technology industry enterprise radiation base, colleges and universities technological innovation base.
 
Henan Coreychem Co., Ltd, facing global High-tech pharmaceutical raw materials, high complex new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade. Corey have well-equipped machine, strong technical force and considerate marketing team service. We also have rich experience advantage in basic research, small scale process development, scale-up, industrial technology development & production and cost control.
 

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career henan chemical co

Henan China
  • Since:2014-12-17
  • Address: No.967,15th Floor,Unit 7, Building 1, No.70 of DianChang Road, High-tech Development Zone, Zhengzho
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