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Doverphos Liquid Phosphites

Dover Chemical is a leading global producer of organophosphites, designed to meet the antioxidant needs of a number of markets, including PVC and polyolefins.

Aryl Organo Phosphites

Click on product name below to view technical data sheet

Product

Chemical Name

Color APHA

Acid Number (mgKOH/gm)

Refractive Index @ 25ºC

Specific Gravity @ 25ºC/15.5ºC

%P

Density LB/gal.

Viscosity cps @ 25°C

Doverphos 4 (TNPP)

Trisnonylphenol phosphite

75 max

0.1 max

1.5255-1.5280

0.980-0.992

4.3

8.2

4600

Doverphos 4-HR (TNPP)

Trisnonylphenol phosphite +0.75% triisopropanolamine

75 max

0.3 max

1.5250-1.5280

0.980-0.992

4.3

8.2

4900

Doverphos 4-HR Plus (TNPP)

Trisnonylphenol phosphite +1.0% triisopropanolamine

75 max

0.3 max

1.5250-1.5280

0.980-0.992

4.3

8.2

5900

Doverphos HiPure 4 (TNPP)

Trisnonylphenol phosphite 0.1% max. free nonylphenol

75 max

0.1 max

1.5265-1.5290

0.980-0.997

4.3

8.2

7800

Doverphos HiPure 4-HR (TNPP)

Trisnonylphenol phosphite 0.1% max. free nonylphenol (+0.75% triisopropanolamine)

75 max

0.2 max

1.5265-1.5290

0.980-0.997

4.3

8.2

8600

Doverphos 10 (TPP)

Triphenyl phosphite

50 max

0.5 max

1.5880 - 1.5900

1.180 - 1.186

10

9.8

17

Doverphos 10 HR (TPP)

Triphenyl phosphite +0.5% triisopropanolamine

50 max

0.5 max

1.5860-1.5890

1.180-1.186

10

9.8

18

Doverphos 213 (DPP)

Diphenyl phosphite

250 max

15 max

1.5540-1.5600

1.210-1.230

13.3

10.1

12

Aryl-Alkyl Organo Phosphites

Click on product name below to view technical data sheet

Product

Chemical Name

Color APHA

Acid Number (mgKOH/gm)

Refractive Index @ 25ºC

Specific Gravity @ 25ºC/15.5ºC

%P

Density LB/gal.

Viscosity cps @ 25°C

Doverphos 7 (PDDP)

Phenyl diisodecyl phosphite

50 max.

0.05 max

1.4780-1.4810

0.938-0.947

7.1

7.8

17

Doverphos 8 (DPDP)

Diphenyl isodecyl phosphite

50 max

0.05 max

1.5160-1.5190

1.022-1.032

8.3

8.6

14

Doverphos 9 (DPIOP)

Diphenyl isooctyl phosphite

50 max

0.05 max

1.5200-1.5240

1.040-1.047

9

8.7

9

Doverphos 11

Tetraphenyl dipropyleneglycol diphosphite

50 max

0.2 max

1.5570-1.5620

1.164-1.188

10.9

9.8

80

Doverphos 12

Poly(dipropyleneglycol) phenyl phosphite

50 max

0.1 max

1.5340-1.5380

1.168-1.180

12

9.8

487

Doverphos 613

Alkyl (C12-C15 ) bisphenol A phosphite

100 max

0.1 max

1.4910-1.4970

0.940-0.985

5.4

8

230

Doverphos 675

Alkyl (C10) bisphenol A phosphite

100 max

0.5 max

1.4940-1.5090

0.910-0.980

6.7

7.9

275

Alkyl Organo Phosphites

Click on product name below to view technical data sheet
Product

Chemical Name

Color APHA

Acid Number (mgKOH/gm)

Refractive Index @ 25ºC

Specific Gravity @ 25ºC/15.5ºC

%P

Density LB/gal.

Viscosity cps @ 25°C

Doverphos 6 (TDP)

Triisodecyl phosphite

50 max

0.1 max

1.4530-1.4610

0.884-0.904

6.2

7.4

15

Doverphos 49 (TTDP)

Tris (tridecyl) phosphite

50 max

0.1 max

1.4600-1.4650

0.882-0.900

4.9

7.4

41

Doverphos 53 (TLP)

Trilauryl phosphite

50 max

0.1 max

1.4545-1.4595

0.872-0.882

5.3

7.3

20

Doverphos 72

Tris (dipropylene glycol) phosphite

50 max

0.2 max

1.4600-1.4635

1.085-1.100

7.2

9.1

380

Doverphos 253

Dioleyl hydrogen phosphite

<3 Gardner

---

1.4640-1.4700

0.880-0.910

5.3

7.5

35

 

DISCLAIMER: 
All specifications and suggestions in this bulletin concerning the use of our products are based upon tests and data believed to be reliable. Since actual use by others is beyond our control, no guarantee, expressed or implied, is made by Dover Chemical as to the effects of such use or the results to be obtained.

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