Page:NIOSH Manual of Analytical Methods - 5523.pdf/4

 GLYCOLS: METHOD 5523, Issue 1, dated 15 May 1996 - Page 4 of 5

[2]

determination of glycols in air: Application to theatrical smokes. Unpublished paper presented at Pittsburgh Conference, Chicago, IL, March 1994. NIOSH [1984]. Ethylene glycol: Method 5500. In: Eller PM, Ed. NIOSH manual of analytical methods, 3rd ed. Cincinnati, OH: U.S. Department of Health and Human Services, HHS (NIOSH) Publication No. 84-100.

METHOD WRITTEN BY: Stephanie M. Pendergrass, MRSB, DPSE

TABLE 1. GLYCOLS GENERAL INFORMATION Analyte

Formula

MW

CAS #

RTECS #

Properties

Ethylene glycol

C2H6O2

62.07

107-21-1

KW2975000

liquid; BP 197.2 C; FP -13 C; d 1.113 g/mL @ 20 C; nD 1.4310; vp 0.007 kPa (0.05 mm Hg) @ 20 C; explosive limits 3.2 to 15.3% v/v in air

Propylene glycol

C3H8O2

76.10

57-55-6

TY2000000

liquid; BP 188 C; FP -60 C ; d 1.038 g/mL @ 20 C; nD 1.4320; vp 0.009 kPa (0.07 mm Hg) @ 20 C; explosive limits 2.6 to 12.5% v/v in air

1,3-Butylene glycol

C4H10O2

90.12

107-88-0

EK0440000

liquid; BP 207.5 C; d 1.0059 g/mL @ 20 C; nD 1.4400; vp 0.06 mm Hg @ 20 C

Diethylene glycol

C4H10O3

106.12

111-46-6

ID5950000

liquid; BP 245 C; FP -6.5 C; d 1.118 g/mL @ 20 C; nD 1.4460 @ 25 C; vp <0.01 mm Hg @ 20 C; explosive limits 3 to 7% v/v in air

Triethylene glycol

C6H14O4

150.17

112-27-6

YE4550000

liquid; BP 285 C; FP -5 C; d 1.125 g/mL @ 20 C; nD 1.4550; vp <0.001 mm Hg @ 20 C; explosive limits 0.9 to 9.2% v/v in air

Tetraethylene glycol

C8H18O5

194.23

112-60-7

XC2100000

liquid; BP 327.3 C; FP -4 C; d 1.125 g/mL @ 20 C; nD 1.4577; vp >0.001 mm Hg @ 20 C

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition