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Tinuvin® 312

Technical Datasheet | Supplied by BASF
Tinuvin® 312 by BASF is chemically Ethanediamide, N-(2-ethoxyphenyl)-N'-(2-ethylphenyl) grade. It acts as a UV absorber belonging to oxanilide class. Imparts outstanding light stability to plastics and other organic substrates. Features strong UV absorption, excellent compatibility in a wide variety of substrates, and low volatility. Protects polymers as well as organic pigments from UV radiation, helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering. Shows no impact on color & transparency of the substrate. Exhibits thermal stability, excellent chemical resistance, no reactivity with alkalis, additional thermal stability to polyamides. Also shows low wavelength absorbance. It can be combined with optical brighteners. Suitable for polyesters, PVC plastisol, polyurethanes, polyamides, polymethylmethacrylate, polybutyleneterephtalate, polycarbonates and cellulose esters. Recommended for rigid and flexible PVC and polyesters. Use level of Tinuvin® 312 ranges between 0.10 and 1.0 %, depending on substrate and performance requirements of the final application.
Product Type
Light Stabilizers / UV Absorbers
Chemical Composition
Ethanediamide, N-(2-ethoxyphenyl)-N'-(2-ethylphenyl)
CAS Number
23949-66-8
Masterbatch
No
Physical Form
Powder
Appearance
White
Product Status
COMMERCIAL
Applications/ Recommended for
  • TPE and TPV > TPU (or TPE-U)
  • PBT
  • UPR
  • PUR
  • PVC > PVC, rigid
  • PC
  • PA, Nylon
  • PVC > PVC, flexible
  • PMMA
  • Fibers/ Textiles/ Carpets > Fibers
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
  • Mechanical/ physical performance > Thermal resistance
  • Safety, regulation & environment > Low volatiles
Food contact approval
Yes
Bio Based
No

Tinuvin® 312 Properties

Property

Value & Unit
Test Condition
Test Method
Molecular weight
312 g/mol
Melting range
124 - 127 °C
Specific gravity @ 20°C
1.26 g/ml
SpecialChem additionnal informations based on CAS Number : 23949-66-8

Hansen Solubility Parameters

[19.7, 7.9, 13.5]
?
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Tinuvin® 312. A practical determination of these HSP values would provide higher certainty. Learn More.

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