308080-99-1
Name | MOLECULAR SIEVES |
CAS | 308080-99-1 |
Molecular Formula | KnNa12-n[(AlO2)12(SiO2)12]xH2O |
MDL Number | MFCD00164506 |
Synonyms
S 136
3 Å
Purmol 3A
Tricat 3A
FAUJASITE
Zeolite 3A
Zeolum A 3
UOP-AS 5078
Purmol 3STH
Siliporite 3A
MOLECULAR SIEVE
MOLECULAR SIEVES
dowex 50wx4-200
dowex 50wx4-400
Siliporite NK 30
Siliporite NK 30AP
3A Molecular Sieves
molecular sieves,3А
MOLECULAR SIEVES 3A
MOLECULAR SIEVES 3D
MOLECULAR SIEVES, 4A
MOLECULAR SIEVES, A4
MOLECULAR SIEVES, 5A
MOLECULAR SIEVES, 13X
MOLECULAR SIEVES 4A 1/8
MOLECULAR SIEVES 5A 1/8
MOLECULAR SIEVE 3A 1/16
MOLECULAR SIEVE 4A 1/16
MOLECULAR SIEVE 5A 1/16
MOLECULAR SIEVES 3A 1/8
MOLECULAR SIEVES 13X 1/8
MOLECULAR SIEVES 3A 1/16
MOLECULAR SIEVES 5A 1/16
MOLECULAR SIEVE 13X 1/16
MOLECULAR SIEVES PACK 3A
MOLECULAR SIEVES 4A 1/16
Molecular sieves, 3A, 3A
MOLECULAR SIEVES 13X 1/16
Molecular sieves, 3 Å
MOLECULAR SIEVES, TYPE 13 X
molecular sieve uop type 3А
Molecular sieves, UOP Type 3?
Molecular Sieve UOP Type 3Å
Molecular sieves 3A, 4 to 8 mesh
Molecular sieves, 3 , 4 - 8 Mesh
Molecular sieves 3A,powder <50 μm
Molecular sieves 3A, 8 to 12 mesh
Molecular Sieves 3A, with indicator
Molecular sieves, 3 pellets, 1.6 mm
Molecular sieves, 3 pellets, 3.2 mm
Molecular Sieves 3A, mixed indicator
Molecular sieves 3A, 4 to 8 Mesh 5KG
Molecular sieves, 3 beads, 4-8 mesh
Molecular sieves, 3 beads, 8-12 mesh
Molecular sieves 3A, 8 to 12 Mesh 5KG
Molecular sieves 3A, 4 to 8 Mesh 500GR
MOLECULAR SIEVE UOP TYPE 3A 1/8''-RODS
Molecular sieves 3A, powder <50 micron
Molecular sieve, Type 4A with indicator
MOLECULAR SIEVES 3 ANGSTROM*1/16IN PELLE T
Molecular sieves 3A, powder <50 Micron 500GR
Molecular sieve, Type Y, ammonium ion, powder
Molecular sieves, 3A, 1-2MM (0.04-0.08in) beads
Molecular sieves, 3A, 3-5MM (0.12-0.20in) beads
Molecular sieves, 3 ,Molecular Sieve UOP Type 3
Molecular sieve, Type Y, ammonium ion, extrusions
Molecular sieves, 3A, 1/8in (3-4mm) diam. pellets
Molecular sieves, 3A, 1/16in (1-2mm) diam. pellets
Molecular sieves, 3A, 0.4-0.8MM (0.02-0.03in) beads
Molecular sieves, 3A, 3-4MM (0.12-0.16in) dia. pellets
Molecular sieves, 3A, 1-2MM (0.04-0.08in) dia. pellets
Molecular sieves, 3A, 1 to 2mm (0.04 to 0.08 in) beads
Molecular sieves, 3A, 3 to 5mm (0.12 to 0.20 in) beads
Molecular sieves, 3A, 0.4 to 0.8mm (0.02 to 0.03 in) beads
Molecular sieves 3A, 1 to 2mm (0.04 to 0.08 in.) dia. pellets
Molecular sieves 3A, 3 to 4mm (0.12 to 0.16 in.) dia. pellets
Molecular sieves powder, Catalyst support, ammonium Y zeolite
Molecular sieve, niobium oxide based, mesoporous, 22 Angstrom
Molecular sieve, niobium oxide based, mesoporous, 32 Angstrom
Molecular sieve, titanium oxide based, mesoporous, 25 Angstrom
Molecular sieve, tantalum oxide based, mesoporous, 22 Angstrom
Molecular sieve, tantalum oxide based, mesoporous, 32 Angstrom
Molecular sieve, sulfated zirconium oxide based, mesoporous, 23 Angstrom
Molecular sieve, sulfated zirconium oxide based, mesoporous, 18 Angstrom
Chemical Properties
Appearance | white powder |
form | Powder or Crystals |
color | Yellow to yellow-green |
Water Solubility | Insoluble in water. |
Sensitive | Hygroscopic |
CAS DataBase Reference | 308080-99-1 |
Safety Data
Hazard Codes | Xi,Xn |
Risk Statements | |
Safety Statements | |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 28421000 |
Hazard Information
Chemical Properties
white powder
Uses
Molecular sieve 3A may be used in the following processes:
- As a general-purpose drying agent in polar and nonpolar media.
- Commercial dehydration of unsaturated hydrocarbon streams, including cracked gas, propylene, butadiene, acetylene
- Drying polar liquids such as methanol and ethanol.
- Adsorption of molecules such as NH3 and H2O from a N2/H2 flow.
Uses
Molecular sieves, 3A is used as desiccant in petroleum and chemical industries. It is useful for the drying of unsaturated hydrocarbons such as ethylene, propylene and butadiene. It is also used in the removal of water from ethanol. It finds application in the drying of certain chemicals namely ethanol, refrigerants and natural gas. It plays an important role as selective adsorption of water in insulated glass (IG) and polyurethane. It has been considered as a general-purpose drying agent in polar and non polar media.
Application
Molecular sieve 3A is mainly used for drying of unsaturated hydrocarbons such as petroleum cracked gas, ethylene, butadiene; drying of polar liquids such as methanol and ethanol, drying of refrigerants; deep drying of kerosene and aero-engines; drying of nitrogen-hydrogen mixed gas . Desiccant for petrochemical, vacuum glass and other industries.
Definition
Porous crystallinesubstances, especially aluminosilicates(see zeolite), that can be dehydratedwith little change in crystalstructure. As they form regularlyspaced cavities, they provide a highsurface area for the adsorption ofsmaller molecules.
The general formula of these substancesis MnO.Al2O3.xSiO2.yH2O,where M is a metal ion and n is twicethe reciprocal of its valency. Molecularsieves are used as drying agentsand in the separation and purificationof fluids. They can also be loadedwith chemical substances, which remainseparated from any reactionthat is taking place around them,until they are released by heating orby displacement with a morestrongly adsorbed substance. Theycan thus be used as cation exchangemediums and as catalysts and catalystsupports. They are also used asthe stationary phase in certain typesof chromatography (molecular-sievechromatography).
The general formula of these substancesis MnO.Al2O3.xSiO2.yH2O,where M is a metal ion and n is twicethe reciprocal of its valency. Molecularsieves are used as drying agentsand in the separation and purificationof fluids. They can also be loadedwith chemical substances, which remainseparated from any reactionthat is taking place around them,until they are released by heating orby displacement with a morestrongly adsorbed substance. Theycan thus be used as cation exchangemediums and as catalysts and catalystsupports. They are also used asthe stationary phase in certain typesof chromatography (molecular-sievechromatography).
General Description
Molecular sieves are crystalline metal aluminosilicates having a 3-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3?, excluding diameter >3?, e.g., ethane. The 4 to 8-mesh type is normally used in gas-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media.
Structure and conformation
The general formula of the chemical composition of molecular sieve is: (Mn+)2/nO·Al2O3·xSiO2·pH2O, M represents metal ion (usually Na in artificial synthesis), n represents the valence of metal ion, and x represents the number of moles of SiO2, also known as is the ratio of silicon to aluminum, and p represents the number of moles of water. The most basic structure of the molecular sieve framework is SiO4 and AlO4 tetrahedron, which form a crystal of a three-dimensional network structure through the combination of shared oxygen atoms. This combination forms the holes and channels with molecular level and uniform pore size. Due to different structures and forms, the "cage"-shaped spatial pores are divided into "cage" structures such as α, β, γ, hexagonal columns, and faujasite.
Supplier
J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Telephone021-61259108 18621169109
Websitehttps://www.meryer.com/cn/index/
Alfa Aesar
Telephone400-6106006
Websitehttp://chemicals.thermofisher.cn
Beijing HwrkChemical Technology Co., Ltd
Telephone010-89508211 18501085097
Websitehttp://www.hwrkchemical.com
Energy Chemical
Telephone021-021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Beijing Ouhe Technology Co., Ltd
Telephone010-82967028 13552068683
Websitehttp://www.ouhechem.com/
Adamas Reagent, Ltd.
Telephone400-6009262 16621234537
Websitehttp://www.tansoole.com
Shandong Xiya Chemical Co., Ltd
Telephone4009903999 13355009207
Websitehttp://www.xiyashiji.com
Sichuan Kulinan Technology Co., Ltd
Telephone400-1166-196 18981987031
Websitehttp://www.hx-r.com/
Tianjin heowns Biochemical Technology Co., Ltd.
Telephone400 638 7771
Websitehttp://www.heowns.com
Sinopharm Chemical Reagent Co,Ltd.
Telephone86-21-63210123
Websitehttp://www.reagent.com.cn
ShangHai YuanYe Biotechnology Co., Ltd.
Telephone021-61312847 13636370518
Websitehttp://www.shyuanye.com
Chengdu Ai Keda Chemical Technology Co., Ltd.
Telephone4008-755-333 18080918076
Websitehttp://www.aikeshiji.com
Thermo Fisher Scientific
Telephone800-810-5118
Websitehttp://www.thermo.com.cn
Beijing innoChem Science & Technology Co.,Ltd.
Telephone400-810-7969 010-59572699
Websitehttp://www.inno-chem.com.cn
Shanghai Jian Chao Chemical Technology Co., Ltd.
Telephone18017383231 18017383231
Websitehttp://www.antaeus-e.com/
9ding chemical ( Shanghai) Limited
Telephone4009209199
Websitehttp://www.9dingchem.com
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Telephone400-400-6206333 18521732826
Websitehttp://www.aladdin-e.com/
1of4
PROMPT×
PROMPT
The What'sApp is temporarily not supported in mainland China
The What'sApp is temporarily not supported in mainland China
Cancel
Determine