Di-2-ethylhexyl azelate

Dioctyl Azelate (DOZ). See Di(2-ethylhexyl) azelate in this Vol, p D1237-L... 

Other 2-ethylhexanol based plasticizers include di-2-ethylhexyl adipate for vinyl food wrap application, tri-2-ethylhexyl trimellitate, di-2-ethylhexyl azelate, and di-2-ethylhexyl sebacate. 

Table II and Figure 1 data show di-2-ethylhexyl azelate (DEHZ) has excellent low viscosity at low temperature along with good volatility properties. Figure 1 shows the DEHZ to have substantially lower volatility than DIOA and actually lower volatility than 4 cSt polyalphaolefin (PAO-4) in the initial distilled loss area of the curves. The slopes of the PAO and petroleum curves in Figure 1 indicate they are composed of a distribution of different molecular weight species, whereas the relatively flat curves of the esters indicate they are essentially composed of a single chemical species. As a result, there are little or no low molecular weight ends to increase the volatility of these diesters. Even though the PAO is a very narrow distillation cut, it is still composed of a blend of dimers, trimers, tetramers, and pentamers, and does exhibit volatility caused by the low ends as demonstrated in Figure 1.

Di (2-ethylhexyl) azelate. See Dioctyl azelate Di-2-ethyl hexyl chlorendate CAS 4827-55-8 EINECS/ELINCS 225-405-1 Synonyms Bicycle (2.2.1) hept-5-ene-2,3-dicarboxylic acid, 1,4,5,6,7,7-hexachloro-, bis (2-ethylhexyl) ester Bis (2-ethylhexyl) chlorendate 5-Norbomene-2,3-dicarboxylic acid, 1,4,5,6,7,7-hexachloro-, bis (2-ethylhexyl) ester... 

Synonyms Azelaic acid, bis (2-ethylhexyl) ester Azelaic acid, di (2-ethylhexyl) ester Bis (2-ethylhexyl) azelate Di (2-ethylhexyl) azelate DOZ... 

EVA has also been compounded in combination with polylactic acid in a formulation of a biodegradable shrink film. " Here, di-(2-ethylhexyl) azelate was used as plasticizer. 

Butyl benzyl, diaUyl, di-n-butyl, diethyl, di-(2-ethylhexyl), dihexyl, diisobutyl, diisodecyl, diisononyl, diisooctyl, dimethyl, (h-n-octyl, dinonyl, ditridecyl, and diundecyl Di-(2-ethylhexyl) adipate, di-n-octyl adipate, di-(2-ethylhexyl) azelate, acetyl tributyl citrate, tricresyl phosphate, tri-(2-ethylhexyl) trimelhtate, di-(2-ethylhexyl) sebacate, and di-n-butyl seba-cate... 

No value was located for dinonyl phthalate and di-(2-ethylhexyl) azelate b2QOC... 

The actual rate of volatilization of plasticizers from water apparently has not been experimentally measured. The rates of volatilization, however, estimated using the Sonth-worth Method to estimate gas-phase and liqnid-phase mass transfer coefficients, were reported in HSDB, and summarized in Table 18.10. VolatiUzation was estimated nnder two scenarios (Figure 18.1) a shallow (1-m deep) river moving at a rate of 1 m/sec below an air mass moving at 3 m/sec. The second scenario was a shallow (1-m deep) lake moving at 0.05 m/sec below a breeze of 0.5 m/sec. The estimated volatilization half-lives of the plasticizers followed the trend established by their Heniy Law constants. Consequently, the predicted half-lives of ditridecyl phthalate, di-(2-ethylhexyl) adipate, di-(2-ethylhexyl) azelate, diundecyl, diisooctyl, dihexyl, dinonyl phthalate were less than 6 days. The same plasticizers would likely be more persistent in the lake scenario. The volatilization rates of the other plasticizers appeared to be much slower, and volatilization from water may not be a significant environmental pathway. Furthermore, the Southworth estimation technique does not take into acconnt sorption of dissolved chemicals by suspended particles. Sorption would increase the residence time of dissolved plasticizers. The predicted volatilization rates, however, were based on Hemy s Law constants which are themselves only estimates. 

Ditridecyl phthalate and di-(2-ethylhexyl) sebacate (0.9) Di-(2-ethylhexyl) azelate (1.7) Diundecyl phthalate (2.5) Diisooctyl phthalate (2.8) Dihexyl phthalate (5.6) Dinonyl phthalate (12) Ditridecyl phthalate... 

Surface lubricants used in the manufacture of metallic articles acetyl tributyl citrate, acetyl tiiethyl citrate, butyl stearate, castor oil, dibutyl sebacate, di-(2-ethylhexyl) azelate, di-(2-ethylhexyl) sebacate, diisodecyl phthalate, di-(2-ethyl-hexyl) phthalate, diethyl phthalate, di-n-octyl sebacate, epoxidi soybean oil, polyisobutylene (minimum molecular weight 300),... 

A wide range of azelates are available but di-(2-ethylhexyl) azelate is used in applications which require low temperature properties similar to those obtained with di-(2-eth-ylhexyl) adipate but with better retention of the plasticizer because of its lower volatility. 

Di(2-ethylhexyl) azelate n. (dioctyl azelate, DOZ) (CH2)7[C00CH2-CH(C2H5) QH9]2. a plasticizer for vinyl chloride polymers and copolymers. It is one of the most compatible of the low-temperature, monomeric plasticizers, has low volatility, and imparts low extractability by water and soapy water. This plasticizer has been approved for food-contact use. 

Di-nonyl adipate Di-(2-ethylhexyl) azelate N-Octyl decyl adipate... 

DOZ (DEHZ), (esters of 1,7-heptanedicarboxylic acid—a nine-carbon aliphatic acid) dioctyl azelate (di-2-ethylhexyl azelate)... 

Low-temperature plasticizers are used in applications where improvements in the low temperature flexibility limits are desired. Applications can include automotive interiors, weather stripping, outdoor cables, hoses, and vinyl roofing. Low-temperature plasticizers include the linear phthalate esters L9P, L911P, and LI IP or DUP. The dibasic acid esters such as DEHA (DOA), DINA, and DEHZ (di-2-ethylhexyl azelate) are also low-temperature plasticizers, but their higher volatility may Unfit their use in some applications. 

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