1,1-DICHLORO-1-NITROETHANE
H3CC(Cl)2NO2
MW: 143.96
METHOD: 1601, Issue 2
CAS: 594-72-9
1601
RTECS: KI1050000
EVALUATION: FULL
PROPERTIES:
OSHA : C 10 ppm NIOSH: 2 ppm ACGIH: 2 ppm (1 ppm = 5.89 mg/m 3 @ NTP)
Issue 1: 15 February 1984 Issue 2: 15 August 1994
liquid; d 1.405 g/mL @ 20 C; BP 124 °C; VP 2 kPa (15 mm Hg; 2% v/v) @ 20 °C
SYNONYMS: dichloronitroethane
SAMPLING SAMPLER:
SOLID SORBENT TUBE (petroleum charcoal, 100 mg/50 mg)
FLOW RATE:
0.01 to 1 L/min
VOL-MIN: -MAX:
1.5 L @ 10 ppm 15 L
SHIPMENT:
routine
SAMPLE STABILITY:
at least 5 days @ 25 °C [1]
BLANKS:
2 to 10 field blanks per set
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
1,1-dichloro-1-nitroethane
DESORPTION:
1 mL CS 2, stand 30 min
TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
225 °C 250 °C 70 °C
CARRIER GAS:
N 2 or He, 30 mL/min
COLUMN:
3 m x 3-mm stainless steel, 5% SP-1000 on 100/120 mesh Chromosorb WHP, or equivalent
CALIBRATION:
analyte solutions in CS 2 with undecane as internal standard
RANGE:
0.09 to 2.7 mg per sample [2]
ACCURACY RANGE STUDIED: BIAS:
27 to 115 mg/m 3 [1] (17-L samples) - 0.12%
ˆ ): 0.055 [1] OVERALL PRECISION (S rT ACCURACY:
ESTIMATED LOD: 0.01 mg per sample PRECISION (Sr):
0.038 [1]
± 11.6%
APPLICABILITY: The working range is 1 to 30 ppm (6 to 180 mg/m 3) for a 15-L air sample. The method is applicable to ceiling determinations.
INTERFERENCES: None identified. Alternate chromatographic columns to circumvent interferences are SP-2100, SP-2100 with 0.1% Carbowax 1500 or DB-1 fused silica capillary column.
OTHER METHODS: This is Method S213 [2] in a revised format.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
