TRIDECETH-12

A synthetic mixture of a fatty alcohol (tridecyl alcohol) and polyethylene glycol that functions as an emulsifier and cleansing agent. 
Extensive research has shown this and other Trideceth-12 ingredients to be safe and non-sensitising when used in low amounts typically seen in cosmetic products.
Trideceth-12 is a water-soluble ingredient that enhances the texture, performance, and stability of cosmetic and personal care products. 

CAS:    24938-91-8
MF:    C13H27(OCH2CH2)nOH,n~6
EINECS:    607-463-3

Synonyms
TRIDECETH-20;TRIDECETH-21;2-ethanediyl),.alpha.-tridecyl-.omega.-hydroxy-Poly(oxy-1;alkyl(c-13)polyethoxylates(ethoxy-6);alpha-tridecyl-omega-hydroxy-poly(oxy-2-ethanediyl);Ethoxylatedtridecylalcohol;Poly(oxy-1,2-ethanediyl),.alpha.-tridecyl-.omega.-hydroxy-;polyoxiethylene(6)alkyl(13)ether;Trideceth-12;Ethoxylated branched C11-14, C13-rich alcohols;MARLIPAL O 13/120;NOVEL TDA-12 ETHOXYLATE;SYNPERONIC 13/12

Trideceth-12 is primarily used in hair care products where it conditions the shafts and improves their softness and manageability. 
Trideceth-12 is also known by other names such as polyethylene glycol (12) or tridecyl ether. 
Trideceth-12 improves the feel of the products and makes them easier to apply. 
The chemical formula of Trideceth-12 is C20H42O3.

Trideceth-12 Chemical Properties
Melting point: 28 °C(lit.)
Boiling point: >150 °C(lit.)
Density: 0.98 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.459(lit.)
Fp: 110 °C
Storage temp.: Refrigerator, under inert atmosphere
Solubility: water, isopropanol: soluble1 wt. % at 25°C
Form: Colourless to White Semi-Solid
Color: White to Off-White
LogP: 5.419 (est)
EPA Substance Registry System: Trideceth-12 (24938-91-8)

Trideceth-12 acts as a solubilizer, surfactant and emulsifier. 
Trideceth-12 is a polyethylene glycol ether of tridecyl alcohol. 
Trideceth-12 has ability to detangle hair and leave it feeling soft and smooth.
Trideceth-12 enhances the solubility and help to stabilize emulsions.
Trideceth-12 helps to improve the texture, spreadability and enhances the overall performance of products.
Trideceth-12 is used in skin care, shampoos, conditioners and hair styling products.