Page:NIOSH Manual of Analytical Methods - 2540-2.pdf/4

 DIETHYLENETRIAMINE, ETHYLENEDIAMINE, & TRIETHYLENETETRAMINE: METHOD 2540, Issue 2, dated 15 August 1994 - Page 4 of 4

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1-Naphthylisothiourea Derivative, " Am. Ind. Hyg. Assoc. J., 46(4), 225-229 (1985). NIOSH/OSHA Occupational Health Guidelines for Occupational Hazards, U.S. Department of Health and Human Services, Publ. (NIOSH) 81-123 (1981), available as GPO Stock #17-03300337-8 from Superintendent of Documents, Washington, DC 20402.

METHOD WRITTEN BY: Charles Neumeister, NIOSH/DPSE. Table 1. General Information: Compound [Formula] CAS# RTECS#

Exposure Limits, ppm M.W.

Diethylenetriamine (DETA) [H 2N(CH 2)2NH(CH 2)2NH 2] IE1225000
 * 1) 111-40-0

Ethylenediamine (EDA) [H 2N(CH 2)2NH 2] KH8575000
 * 1) 107-15-3

103.2

60.1

Triethylenetetramine (TETA) [H 2N(CH 2CH 2NH) 2(CH 2)2NH 2] 146.2 YE6650000 flash
 * 1) 112-24-3

OSHA

1

NIOSH

1 (skin)

ACGIH

1 (skin)

10 (TWA) 10 (TWA)

No PEL No REL

10 (TWA)

No TLV

Properties

liquid; 0.96 g/mL @ 20 °C; BP 206.7 °C; VP 0.05 kPa (0.37 mm Hg); flash point 98 °C

liquid; 0.90 g/mL @ 20 °C; BP 116-117 °C; VP 1.43 kPa (10.7 mm Hg); flash point 40 °C

liquid; 0.98 g/mL @ 20 °C; BP 277.4 °C; VP unknown;

point 118 °C ____________________________________________________________________________________ ____ APPENDIX: PREPARATION OF NTIC-COATED XAD-2 RESIN: a. Weigh sufficient XAD-2 resin (16/50 mesh) to allow preparation of tubes for sampling, blanks, quality control, and recovery studies. (@ 120 mg XAD resin per tube). b. Dissolve sufficient 1-naphthylisothiocyanate in methylene chloride to coat the XAD-2 resin at a 10% loading (w/w). c. Place the XAD-2 resin in the NTIC solution, mix, and remove methylene chloride using rotary evaporation. d. Load the coated XAD-2 resin into 7 cm long, 6-mm OD, 4-mm ID, glass tubes so that the front section contains 80 mg and the back section contains 40 mg. Use PTFE-wool plugs to separate and contain the two sections. Cap the finished tubes with plastic caps.

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