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PENTACHLOROETHANE
2517
CHCl2CCl3
MW: 202.30
CAS: 76-01-7
RTECS: KI6300000
METHOD: 2517, Issue 2
EVALUATION: FULL
Issue 1: 15 May 1985
Issue 2: 15 August 1994
Issue 2: 15 August 1994
OSHA:
no standard
NIOSH:
handle with caution
ACGIH:
no standard (1 ppm = 8.27 mg/m³ @ NTP)
PROPERTIES:
liquid; d 1.671 g/mL @ 25 °C; BP 162 °C; VP 450 Pa (3.4 mm Hg; 4500 ppm) @ 20 °C
SYNONYMS:
Pentalin; ethane pentachloride.
SAMPLING SAMPLER: SOLID SORBENT TUBE (Porapak R, 70 mg/35 mg) FLOW RATE: 0.01 to 0.2 L/min VOL-MIN: 1 L @ 0.1 mg/m³ 10: 10 L SHIPMENT: routine SAMPLE STABILITY: stable ≥ 7 days @ 25 °C; ≥ 21 days @ 0 °C in the dark BLANKS: 2 to 10 field blanks per set ACCURACY RANGE STUDIED: 0.014 to 5.37 mg/m³[1] (3-L samples) BIAS: not significant [1] OVERALL PRECISION ([1]): 0.075 [1] ACCURACY: ± 15%
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MEASUREMENT MEASUREMENT: GAS CHROMATOGRAPHY,63Ni ECD ANALYTE: pentachloroethane DESORPTION: 2 mL hexane; 30 min ultrasonic TEMPERATURE-INJECTION: 240 °C -DETECTOR: 250 °C -COLUMN: 70 °C INJECTION VOLUME: 5 µL CARRIER GAS: 5% methane, 95% argon; 30 mL/min DETECTOR PURGE GAS: 5% methane, 95% argon if required; 80 mL/min COLUMN: nickel, 2-mm ID x 2 m, packed with 3% OV-17 on 100/120 mesh Chromosorb WHP CALIBRATION: standard solutions of pentachloroethane in hexane RANGE: 0.04 to 40 µg per sample ESTIMATED LOD: 0.004 µg per sample [2] PRECISION ([2]): 0.019 [1]
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APPLICABILITY: The working range is 0.01 to 20 mg/m³ (0.001 to 2.4 ppm) for a 5-L air sample.
INTERFERENCES: 1,2,2,3-Tetrachloropropane interferes with the analyte GC peak but is not likely to be present in most samples. Large concentrations of 1,1,2,2-tetrachloroethane may obscure the analyte GC peak.
OTHER METHODS: This revises P&CAM 335 [2].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94