天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
+1 (818) 612-2111
Inquriy
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

RFQ
skype
MY Account
Top
Postion:Product Catalog >Chemical Reagents>Organic reagents>Amine salt (ammonium salt)>Tetramethylammonium bromide
Tetramethylammonium bromide
  • Tetramethylammonium bromide
  • Tetramethylammonium bromide
  • Tetramethylammonium bromide
  • Tetramethylammonium bromide
  • Tetramethylammonium bromide

Tetramethylammonium bromide NEW

Price Get Latest Price
Package 25KG
Min. Order: 1KG
Supply Ability: 50000KG/month
Update Time: 2023-10-10

Product Details

Product Name: Tetramethylammonium bromide CAS No.: 64-20-0
EC-No.: 200-581-2 Min. Order: 1KG
Purity: 99% Supply Ability: 50000KG/month
Release date: 2023/10/10

CAS:64-20-0
MF:C4H12BrN
MW:154.05
EINECS:200-581-2
Product Categories:Ammonium Bromides (Quaternary);Quaternary Ammonium Compounds;quarternary ammonium salts;Ammonium Salts;Greener Alternatives: Catalysis;Phase Transfer Catalysts;AnionicHPLC;Chromatography/CE Reagents;Ion Pair;Ion Pair Reagents;Ion Pair Reagents - Anionic;Ammonium SaltsAnalytical Reagents;Electrochemistry;Supporting Electrolytes for Electrochemistry;bc0001
Mol File:64-20-0.mol
Article illustration

Tetramethylammonium bromide Chemical Properties
Melting point >300 °C (lit.)
Boiling point >360°C
density 1,56 g/cm3
refractive index 1.4379 (estimate)
storage temp. Store below +30°C.
solubility H2O: 0.1 g/mL, clear, colorless
form Crystalline Powder
color Slightly gray
OdorOdorless
PH5.5-6.5 (100g/l, H2O)
Water Solubility soluble
λmaxλ: 240 nm Amax: 0.06
λ: 250 nm Amax: 0.03
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02
Sensitive Hygroscopic
BRN 3620955
CAS DataBase Reference64-20-0(CAS DataBase Reference)
NIST Chemistry ReferenceTetramethylammonium bromide(64-20-0)
EPA Substance Registry SystemMethanaminium, N,N,N-trimethyl-, bromide (64-20-0)
Tetramethylammonium bromide Usage And Synthesis
Chemical PropertiesSLIGHTLY GREY CRYSTALLINE POWDER
UsesTetramethylammonium bromide acts as an ion pair reagent. It is used as a surface-active agent and an active ingredient for conditioners. Further, it is used as a softner for textiles and paper products. It is also employed as a disinfection agent, sanitizer, antimicrobial and antistatic agent. In addition to this, it plays in important role as a phase transfer catalyst in synthetic chemistry.
UsesTetrabutylammonium bromide (TBAB) may be used in the molten state in the following processes:
  • Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.

  • Synthesis of alkyl-substituted pyrroles in the absence of catalyst and organic solvent.

  • Synthesis of dithioacetals from acetals by transthioacetalisation in a solvent free environment.

  • Synthesis of polyamides (PAs) by the polymerization of terephthalic acid and diisocyanates.

  • Catalyze the addition of thiols to conjugated alkenes.

  • Dehydrochlorination of poly(vinyl chloride).

DefinitionChEBI: The bromide salt of tetramethylammonium.
General DescriptionTetrabutylammonium bromide is a quaternary ammonium compound that is widely used as a phase transfer catalyst. Absolute viscosities of its aqueous solutions have been measured at various temperatures (20,25 and 30°C). Various physical properties (activity coefficient up to saturation, conductance, density and solubility in water) of TMABr have been evaluated.
Purification MethodsCrystallise the bromide from EtOH, EtOH/diethyl ether, MeOH/acetone, water or from acetone/MeOH (4:1) by adding an equal volume of acetone. It is dried at 110o under reduced pressure or at 140o for 24hours. [Beilstein 4 IV 145.]

Packing &shipping&Payment

Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
Quantity(Kilograms)1 - 10000>10000
Est. Time(days)5To be negotiated

Article illustration

Article illustrationCompany information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.

Article illustrationAdvantage
In stock

Article illustration






Company Profile Introduction

-

You may like

Recommended supplier

Product name Price   Suppliers Update time
$0.00/1KG
VIP3Y
Hebei Weibang Biotechnology Co., Ltd
2024-10-24
$5.00/1KG
VIP2Y
Henan Fengda Chemical Co., Ltd
2024-01-15
$20.00/1kg
VIP5Y
Hebei Yanxi Chemical Co., Ltd.
2023-10-23
$30.00/1kg
Anhui Ruihan Technology Co., Ltd
2023-09-11
$10.00/1KG
Wuhan Boyuan Import & Export Co., LTD
2023-04-14
$0.00/1KG
VIP4Y
WUHAN FORTUNA CHEMICAL CO., LTD
2023-02-23
$0.00/1kg
VIP3Y
Henan Aochuang Chemical Co.,Ltd.
2022-10-10
$34.00/10g
Qiuxian Baitai New Material Co., LTD
2021-10-12
$15.00/1KG
Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10
$1.00/1KG
VIP6Y
Career Henan Chemical Co
2020-01-07
  • Since: 2017-12-08
  • Address: Building A, Enjoy city, Zhongshan East Road, Shijiazhuang city, Hebei province
INQUIRY
xing
13288715578
sales@hbmojin.com