METHYL TETRAGLYCOL (METL TETRAGLKOL)
METHYL TETRAGLYCOL (METL TETRAGLKOL)
CAS No. : 23783-42-8
EC No. : 245-883-5
Synonyms:
2,5,8,11-Tetraoxatridecan-13-ol; 23783-42-8; Tetraethylene glycol monomethyl ether; Tetraethyleneglycol monomethyl ether; 3,6,9,12-Tetraoxatridecan-1-ol; Methyl Tetraglycol; m-PEG4-alcohol; mPEG4-OH; 2-{2-[2-2-(METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL; 3,6,9,12-Tetraoxotridecanol; Tetraethyleneglycol monomethylether; MFCD00041756; AK-77422; Tetraethyleneglycol monomethyl ether, 98%; C9H20O5; 2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethanol; EINECS 245-883-5; NSC 345692; COCCOCCOCCOCC[O]; DSSTox_CID_7829; ACMC-209g5u; EC 245-883-5; DSSTox_RID_78580; DSSTox_GSID_27829; SCHEMBL64956; KSC204A0F; 3,6,9,12-tetraoxatridecanol; BIPG1559; CHEMBL1232586; DTXSID3027829; 3,9,12-Tetraoxatridecan-1-ol; CTK1A4002; 5S,6S-epoxy-15R-hydroxy-ETE; 2,8,11-Tetraoxatridecan-13-ol; 3,6,9,12-tetraoxa-1-tridecanol; ZINC1580161; Tox21_200748; ANW-25216; NSC345692; tetraethylene glycol mono methyl ether
EN
Chemical Characterization
Tetraethylene glycol monomethyl ether
Homologous mixture, n = 3–6
Main components are:
Methyl tetraglycol (min. 60%) CAS-Nr.: 23783-42-8
Methyl pentaglycol CAS-Nr.: 23778-52-1
Registrations: EINECS (Europe), TSCA (USA), AICS (Australian),DSL (Canada), ECL (Korea), PICCS (Philippines), ENCS (Japan)
Product Description
Methyl tetraglycol is a clear yellowish, slightly hygroscopic and slightly mobile liquid with an extremely faint odour. It is miscible in any ratio with water and the usual organic solvents. Methyl tetraglycol exerts to the typical alcohol reactions. Methyl tetraglycol is used as a hydraulic fluid component e.g. in brake fluids. Because of its high dissolving power methyl tetraglycol is used in water-borne and solvent-borne coating formulations and as dispersing agent. Furthermore, methyl tetraglycol finds many applications in biochemistry and medicine, e.g. in herbicide formulations, X-ray contrast media and medicinal drugs. Also, the esterification with peptides influences the hydrophilic properties as well as the immunochemical resistance. In the electronic industry methyl tetraglycol is used in soldering agents and as regenerations fluid for LCD-cells.
Storage advices
Glycol ethers and their derivatives tend to form peroxides in the presence of air or oxygen. Due to the hygroscopicity of methyl tetraglycol correct storage in order to prevent absorption of water has to be ensured. It is recommended to reduce moisture pickup by nitrogen blanketing of storage tanks. Drying agents (silica gel) should be used if the tank is able to breath. Storage tanks should be made from stainless steel. Alumina and other light metals are not suitable due to alcoholate formation with methyl tetraglycol. For further information please refer to the safety data sheet
Technical data
Methyl tetraglycol molar mass g/mol ca. 208
Methyl tetraglycol boiling range/1013 hPa °C 280–350
Methyl tetraglycol solidification point (DIN 51583) °C -39
Methyl tetraglycol flash point (DIN 51758) °C 161
Methyl tetraglycol ignition temperature (DIN 51794) °C 325
Methyl tetraglycol vapour pressure/20 °C mbar <0,1
Methyl tetraglycol density/20 °C (DIN 51757) g/cm³ ca. 1,06
Methyl tetraglycol kinematic viscosity/20 °C (DIN 51562) mm²/s 11,5-12,5
Methyl tetraglycol miscibility with water/25 °C 100% miscible
Methyl tetraglycol specific heat capacity kJ/kgK 2,4
TR
Kimyasal Karakterizasyon
Tetraetilen glikol monometil eter
Homolog karm, n = 3–6
Ana bileenler unlardr:
Metil tetraglikol (min.% 60) CAS-Nr .: 23783-42-8
Metil pentaglikol CAS-Nr .: 23778-52-1
Kaytlar: EINECS (Avrupa), TSCA (ABD), AICS (Avustralya), DSL (Kanada), ECL (Kore), PICCS (Filipinler), ENCS (Japonya)
Ürün Açklamas
Metil tetraglikol, berrak sarms, hafif higroskopik ve oldukça hafif bir kokuya sahip hafif hareketli bir svdr. Su ve normal organik çözücüler ile her oranda karabilir. Metil tetraglikol, tipik alkol reaksiyonlarna uygulanr. Metil tetraglikol, bir hidrolik sv bileeni olarak kullanlr, örn. fren svlarnda. Yüksek çözünme gücü nedeniyle metil tetraglikol, su bazl ve solvent bazl kaplama formülasyonlarnda ve dispersiyon ajan olarak kullanlr. Ayrca metil tetraglikol, biyokimya ve tpta birçok uygulama bulur, örn. herbisit formülasyonlarnda, X-n kontrast ortamlarnda ve tbbi ilaçlarda. Ayrca, peptitlerle esterletirme, hidrofilik özellikleri ve immünokimyasal direnci etkiler. Elektronik endüstrisinde metil tetraglikol, lehimleme ajanlarnda ve LCD hücreleri için rejenerasyon svs olarak kullanlr.
Depolama önerileri
Glikol eterler ve türevleri, hava veya oksijen varlnda peroksitler oluturma eilimindedir. Metil tetraglikolün higroskopiklii nedeniyle, su emilimini önlemek için doru depolama salanmaldr. Depolama tanklarnn nitrojen ile örtülmesiyle nem almnn azaltlmas tavsiye edilir. Tank nefes alabiliyorsa kurutucu maddeler (silika jel) kullanlmaldr. Depolama tanklar paslanmaz çelikten yaplmaldr. Alümina ve dier hafif metaller, metil tetraglikol ile alkolat oluumu nedeniyle uygun deildir. Daha fazla bilgi için lütfen güvenlik veri sayfasna bakn
Teknik veri
Methyl tetraglycol molar kütle g / mol ca. 208
Methyl tetraglycol kaynama aral / 1013 hPa ° C 280–350
Methyl tetraglycol katlama noktas (DIN 51583) ° C -39
Methyl tetraglycol parlama noktas (DIN 51758) ° C 161
Methyl tetraglycol tutuma scakl (DIN 51794) ° C 325
Methyl tetraglycol buhar basnc / 20 ° C mbar <0,1
Methyl tetraglycol younluk / 20 ° C (DIN 51757) g / cm³ ca. 1.06
Methyl tetraglycol kinematik viskozite / 20 ° C (DIN 51562) mm² / s 11,5-12,5
Methyl tetraglycol su ile karabilirlik / 25 ° C% 100 karabilir
Methyl tetraglycol özgül s kapasitesi kJ / kgK 2,4