Free Raman spectral database, please give credit to the origin when using it!
![Raman Spectra](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/uv_raman_spectroscopy/ramanspectradtu_wavwnumber_pic1.jpg?h=510&w=400&hash=1F0AAE28A07513FA62DB1E57129B367E)
Adipic acid diester plasticizers for PVC:
![Raman Spectra DTU](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/phthalate2.jpg)
Example: DEHP, di-2-ethyl-hexyl phthalate ester
Di(2-ethylhexyl) phthalate (DEHP, CAS No [117-81-7]) is also known as di-octyl phthalate (DOP). In Western Europe it accounts for 30% of all plasticiser usage and as such is generally considered as the industry standard.
Literature: T. Nørbygaard & R.W. Berg, Appl. Spectrosc. vol. 58(4), p.410-413, 2006.
![PhthalateEster](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/phathalicestersslide3.jpg)
![PhthalateEster](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/phathalicestersslide4.jpg)
![Quantitatice Determination DEHP](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/quantitativedeterminationdehpslide5.jpg)
![PhthalateEster](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/phthalateesterwslide6.jpg)
Phthalic acid diester plasticizers for PVC:
Diisobutyl adipate, iso-butyl, [141-04-8], C14H26O4, Sigma-Aldrich
Diisodecyl adipate, iso-decyl, [27178-16-1], C26H50O4, Sigma-Aldrich
Diamyl adipate, iso-amyl, [14027-78-2], C16H30O4, own product
Diisopropyl adipate, iso-propyl, [6938-94-9], C12H22O4, own product
Diisononyl adipate, iso-nonyl, [33703-08-1], C24H46O4, BASF
Bis(1-butylpentyl) adipate, BBPA, [77916-77-9], C24H46O4, Sigma-Aldrich
Di-2-ethylhexyl adipate, DEHA, [103-23-1], C22H42O4, (Adimoll) Bayer (Lanxess)
Diethyl adipate, DEA, [141-28-6], C10H18O4, Sigma-Aldrich
Dimethyl adipate, DMA, [627-93-0], C8H14O4, Sigma-Aldrich
Dihexyl adipate, 1-hexyl, [110-33-8], C18H34O4, own product
Adipic polyester, 1,3-butylene glycol polymer, Ultramoll-III (trade name for highly viscous plasticizer), [24937-93-7] from LanXess
R. W. Berg and A. Dopazo Otero: “Analysis of Adipate Ester Contents in Poly(Vinyl Chloride) Plastics by Means of FT-Raman Spectroscopy”. Vibrational Spectroscopy (Elsevier) 42, 222-225 (2006).
Polyvinyl chloride PVC:
![Raman Spectra DTU](/english/-/media/institutter/kemi/forskning/fysiskkemi/ramanspektroskopi/uv_raman_spectroscopy/ramanspectradtu_pvc_pic5.gif?h=492&w=701&hash=0B4B321AB2C531B3A908FA5CE66D9ABF)
Polyvinyl chloride, (CH2CHCl)n, [9002-86-2] plastics, pure powder
Literature: T. Nørbygaard & R.W. Berg, Appl. Spectrosc. vol. 58(4), p.410-413, 2006.
Vibrating Chlorine in PVC polymer.
T. Nørbygaard and R. W. Berg: "Analysis of Phthalate Ester Content in PVC Plastics by means of FT-Raman Spectroscopy", Applied Spectroscopy, Vol. 58, No. 4, 2004 p. 410-413.
R. W. Berg and A. Dopazo Otero: “Analysis of Adipate Ester Contents in Poly(Vinyl Chloride) Plastics by Means of FT-Raman Spectroscopy”. Vibrational Spectroscopy (Elsevier) 42, 222-225 (2006).