Page:NIOSH Manual of Analytical Methods - 5601.pdf/7

 ORGANONITROGEN PESTICIDES: METHOD 5601, Issue 1, dated 15 January 1998 - Page 7 of 21

TABLE 1. GENERAL INFORMATION Name / Synonym

Empirical Formula

MW

Properties

Solubility in H2O (g/L)

Exposure Limit (mg/m3)

Aldicarb CAS# 116-06-3 RTECS UE2275000

C7H14N2O2S

190.3

MP 99-100 C; vp 3.9 mPa (2.9x10-5 mm Hg) @ 25 C; LD50 1 mg/kg

6 @ 25 C

Benomyl CAS# 17804-35-2 RTECS DD6475000

C14H18N4O3

290.36

MP decomposes; vp <1.3 mPa (<1x10-5 mm Hg) @ 20 C; LD50 >9590 mg/kg

0.002 @ 25 C

OSHA 5.0 (resp) ACGIH 10

Captan CAS# 133-06-2 RTECS GW5075000

C9H8Cl3NO2S

300.6

MP 178 C; vp <1.3 mPa (<1x10-5 mm Hg) @ 20 C; LD50 9000 mg/kg

<0.005 @ ~25 C

NIOSH 5 ACGIH 5

Carbaryl CAS# 63-25-2 RTECS FC5950000

C12H11NO2

201.24

MP 142 C; vp <5.3 mPa (<4x10-5 mm Hg) @ 25 C; LD50 250 mg/kg

0.12 @ 30 C

OSHA 5 NIOSH 5 ACGIH 5

Carbendazim CAS# 10605-21-7 RTECS DD6500000

C9H9N3O2

191.21

MP 302-307 C (decomposes); LD50 6400 mg/kg

0.008/pH 7 @ 24 C

Carbofuran CAS# 1563-66-2 RTECS FB9450000

C12H15NO3

221.28

MP 150-153; vp 0.031 mPa (2.3x10-7 mm Hg) @ 20 C; LD50 5.3 mg/kg

0.70 @ 25 C

Chlorpropham CAS# 101-21-3 RTECS FD8050000

C10H12ClNO2

213.68

MP 40.7-41.1 C; vp 2.7 mPa (2x10-5 mm Hg) @ 33 C;LD50 1200 mg/kg

slightly soluble

Diuron CAS# 330-54-1 RTECS YS8925000

C9H10Cl2N2O

233.11

MP 158-159 C; vp 0.41 mPa (3.1x10-6 mm Hg) @ 50 C; LD50 437 mg/kg

0.042 @ 25 C

Formetanate.HCl CAS# 23422-53-9 RTECS FC2800000

C11H16ClN3O2

257.75

MP 200-202 (decomposes); LD50 20 mg/kg

>50% as hydrochloride

Methiocarb CAS# 2032-65-7 RTECS FC5775000

C11H15NO2S

225.34

MP 121.5 C; vp 0.036 mPa (2.7x10-7 mm Hg) @ 25 C; LD50 60 mg/kg

insoluble

Methomyl CAS# 16752-77-5 RTECS AK2975000

C5H10N2O2S

162.24

MP 78-79 C; vp 6.7mPa (5x10-5 mm Hg) @ 25 C; LD50 17 mg/kg

58 @ 25 C

Oxamyl CAS# 23135-22-0 RTECS RP2300000

C7H13N3O3S

219.3

MP 100-102 C; vp 31 mPa (2.4x10-4 mm Hg) @ 20 C; LD50 5 mg/kg

280 @ 25 C

Propham CAS# 122-42-9 RTECS FD9100000

C10H13NO2

179.24

MP 90 C; vp 18 mPa (1.35x10-4 mm Hg); LD50 3724 mg/kg

0.25 @ 25 C

Propoxur CAS# 114-26-1 RTECS FC3150000

C11H15NO3

209.27

MP 91.5 C; vp 1.3 mPa (9.75 mm Hg) @ 20 C; LD50 83 mg/kg

2 @ 20 C

Thiobencarb CAS# 28249-77-6 RTECS EZ7260000

C12H16ClNOS

257.81

Not available; LD50 1130 mg/kg

~0.03 @ 20 C

NIOSH 0.1 ACGIH 0.1

NIOSH 10 ACGIH 10

NIOSH 2.5 ACGIH 2.5

NIOSH 0.5 ACGIH 0.5

Abbreviations: MW=molecular weight (Daltons); RTECS=Registry of Toxic Effects of Chemical Substances[18]; LD50=lethal dose 50% [19,20]; mPa=milliPascals

NIOSH Manual of Analytical Methods, Fourth Edition