General
Description |
Field Definitions
|
NAME: Nitric Acid
SYNONYM(s):
Aqua fortis; White fuming nitric acid (WFNA); Red fuming nitric acid
(RFNA); Hydrogen nitrate
IMIS: 1860
CAS: 7697-37-2
NIOSH: RTECS QU5775000
DOT: 2032 44
DESCRIPTION:
Colorless, yellow, or red fuming liquid with an
acrid, suffocating odor. MW: 63 BP: 183 to 251
F MP: -42 to -61 F
Exposure Limits
OSHA GENERAL INDUSTRY STANDARDS: 2 ppm, 5
mg/m3
OSHA CONSTRUCTION INDUSTRY STANDARDS: 2 ppm, 5
mg/m3 TWA
THRESHOLD LIMIT VALUE: 2 ppm, 5.2 mg/m3
TWA; 4 ppm, 10 mg/m3 STEL
RECOMMENDED EXPOSURE LIMIT:
2 ppm TWA; 4 ppm STEL
Health Factors
SYMPTOM(s): Eye, mucous membrane, skin
irritation; delayed pulmonary edema, pneumonitis, bronchitis; dental
erosion
HEALTH EFFECTS: Acute lung damage (HE4)
Irritation-Eye, Nose, Throat, Skin---Marked (HE14)
ORGAN: Eyes, respiratory system, skin, teeth
Monitoring
SLC1:
MEDIA: Treated Silica Gel Tube
(Supelco, ORBO-53; SKC, 226-10-03 or equivalent) MAX V:
96 Liters MAX F: 0.2 L/min (TWA) MAX
V: 7.5 Liters MAX F: 0.5 L/min (STEL)
ANL 1: Ion Chromatography; IC REF: 2 (OSHA
ID-165SG) SAE: 0.32 CLASS: Partially Validated
NOTE: Phosphoric, Nitric, and Sulfuric Acids may be
submitted on the same sample (TWA only). For STEL samples, submit as
a separate sample. Make sure that glass fiber filter plug is firmly
in contact with silica gel before sampling and before sealing tube
for shipment.
SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):
DEVICE: Detector Tube COMPANY:
Sensidyne PART #: 15L RANGE: 0.2-40 ppm
CLASS: Mfg DEVICE: Detector Tube COMPANY:
Draeger PART #: 67 28311 RANGE: 1-50 ppm
CLASS: Mfg
WIPE:
MEDIA FOR LIQUID SOLUTIONS: Whatman smear tab;
Solvent: Deionized . Water |