SPI-Chem™ Polyethylene Glycol, PEG

Other common names: Carbowax^®

Explanation of Hazardous Labels

Chemical formula: H(OCH₂CH₂)_nOH
CAS #: 25322-68-3

Polyethylene is used worldwide as common embedding system for light microscopy and histology. If it available in a variety of different molecular weights, for specific results from particular samples.

Comparison Value Chart


Carbowax   Average M.W.  Density      Density   Melting/Freezing    
                        
                         @ 20°C        @60°C       range, °C       
     

PEG 200      190-210     1.2390       1.0922         < -65 
Viscous Liquid

PEG 300      285-315     1.1250       1.0928       -15 - 9
Viscous Liquid

PEG 400      380-420     1.1254       1.0930         4 - 8
Viscous Liquid

PEG 600      570-630     1.1257       1.0930        20 - 25
Viscous Liquid

PEG 1000     950-1050    1.0926                     37 - 40
Waxy

PEG 1450    1300-1600    1.0919                     43 - 46
Waxy

PEG 3350    3000-3700    1.0926                     54 - 58
Waxy

PEG 8000    7000-9000    1.0845                     60 - 63
Flakes

Storage conditions: Room temperature
Non-hazardous from stand point of shipping

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