IXOL   M-125, B-251E    CAS # 68441-62-3

Molecular weight


Equivalent weight NA
Formula 2-Butyne-1,4-diol, polymer with (chloromethyl)oxirane, brominated, dehydrochlorinated, methoxylated
Toxicity/Safety See MSDS of Supplier
M-125 B-251
Diol Triol
Appearance brown liquid dark-brown liquid
Hydroxyl number  mg KOH/g 239 330
Density at 25 C,  77F g/cm3 1.570 1.580
Viscosity at 25C,  77F, mPas ~ 2900 7,000
Flash point (open cup)C  (F) 196  (384.8)
Water content, weight, %  < 0.2
Bromine weight, % 32.0 ≈ 31.5
Chlorine weight, % 7.0 ≈ 6.9
Regulatory Inventory .
CAS REGISTRY NUMBER #   68441-62-3 NAME :  Halogenated aliphatic polyether diol/triol
DSL Canada Yes
EINECS Europe   No longer polymer list   NLP
ASIA-PAC Australia, China, Japan, Korea, Philippines, and Taiwan   Yes
ENCS Japan    Yes
ECL Korea    Yes
The fact that a compound is not listed under a specific CAS # in a countries inventory does not mean this compound cannot be used, it can be an exempt compound or polymer which does not require listing, or it can be listed in a different category. Ask your supplier.
Other names: 
Commercial Products or generic terms used for products. For manufacturer see Additives MFCT.
Some of these products are marketed as antioxidants and not as chain extender
Some of these product names might not be commercial anymore, the product names still might be on old formulations

Last edited on:

July 11, 2006

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