Page:NIOSH Manual of Analytical Methods - 5600.pdf/9

 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 9 of 20 Table 3.

Physical Properties(1)

Compound Solubility in Water (alphabetically) at 20 °C) 1. Azinphos methyl 20(3) 2. Chlorpyrifos — 3. Diazinon 40 4. Dicrotophos miscible 5. Disulfoton nearly insol.

Liquid Density

MP

BP

(g/mL)

(°C)

°C (mm Hg)

1.44

(3)

20 12. Methyl parathion 20(3) 13. Mevinphos 20(4) (7)

20 14. Monocrotophos

Pascal

unstable >200

none found

73-74 30(8) 41-42

1.116-1.118

liquid

decomp. >120

1.216

liquid

1.144

oil

(3)

20 6. Ethion slightly sol. 7. Ethoprop 750 8. Fenamiphos 20(3) 9. Fonofos 13(7) 10. Malathion 30(6) 11. Methamidophos readily sol.

Vapor Pressure

—

mm Hg @ °C(mg/L

0.00018

1.35x10 -6

0.0025

1.87x10 -5

25

0.019

1.4x10 -4

20

400 (760)

none found

—

0.024

1.8x10 -4

0.0074

5.4x10 -5

20

(3)

1.220

insol. -12 to -13

—

0.0002

1.5x10 -6

1.094

oil

—

0.047

3.5x10 -4

none found

49 329 liquid

—

0.00012

9x10 -7

1.16 1.23 145 1.31

2.9 54.

— 1.358 50 1.25 miscible

37-38 20.6 (4)

— none found

54-55 (5)

—

none found

156 (0.7) (6) —

— 325 (760)

—

26

(4)

0.005

4x10 -5

0.04

3x10 -4

0.0023

1.7x10 -5

0.0002

1.5x10 -6

0.4

3x10 -3

0.29

2.2x10 -3

0.0009

7x10 -6

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94

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