Survey for N-nitroso compounds at Crompton and Knowles Corporation, Dyes and Chemicals Division, Reading, Pennsylvania.

Details

• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  A survey was conducted at Crompton and Knowles Corporation, Dyes and Chemicals Division, (SIC-2865) Reading, Pennsylvania, to determine whether N-nitroso compounds are contaminated in the azo dye factories, where sodium-nitrite (7632000) and sometimes secondary or tertiary amines are used as raw materials for dye synthesis. Seven air samples were collected and sampled through either midget impingers containing 15ml/1N KOH or vacuum traps containing 45ml/1N Koh at ambient temperature. The sample (15ml) was loaded onto a Jet Tube pre-impregnated with 15ml dichloromethane (75092). GC/TEA (66400) conditions were used for volatile nitrosamine detection. HPLC-TEA was constructed by sequentially connecting a high pressure pump, an injector, a Lichrosorb Di60 Column, and a TEA (66400). Solvent systems used were 60% acetone (67641) and 40% isooctane (540841), 50% acetone and 50% isooctane, 35% acetone and 65% isooctane, 25% acetone and 75% isooctane, and 12% acetone and 88% isooctane. At a detection limit of 0.5 micrograms/g, two raw materials samples, both chlorinated nitroanilines, were found to be TEA responsive compounds. Three press cake samples of the disperse dyes all contained one TEA responsive compound at concentrations of 406, 3034, and 491 micrograms/g. TEA responsive materials were found in every finished product of the disperse dyes. All the dyes samples contained terminal substituted amino groups; TEA responsive compounds were found in every sample. Whether the TEA responsive compounds were present in factory air was inconclusive. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no pdf
• Subjects:
  Amines Environmental Pollution Manufacturing And Industrial Facilities Occupational Health Preceptorship Safety
• Keywords:
  NIOSH-Publication; NIOSH-Survey; Region-3; IWS-072-20; Analytical-methods; Environmental-contamination; Chemical-manufacturing-industry; Workers; Aromatic-amines; Field-Study
• Series:
  Industry Wide Field Studies
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Massachusetts ; Ohio ; OSHA Region 1 ; OSHA Region 3 ; OSHA Region 5 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-22
• NIOSHTIC Number:
  nn:00083550
• NTIS Accession Number:
  PB89215982
• Citation:
  Thermo Electron Research Center, Waltham, Massachusetts 1978 Mar; :1-22
• CAS Registry Number:
  2,2,4-Trimethylpentane (CAS RN 540-84-1) ; Acetone (CAS RN 67-64-1) ; Dichloromethane (CAS RN 75-09-2) ; Sodium nitrite (CAS RN 7632-00-0) ; Tetraethylammonium (CAS RN 66-40-0)
• Federal Fiscal Year:
  1978
• Performing Organization:
  Thermo Electron Research Center Waltham, Massachusetts
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  2865 - Cyclic crudes and intermediates - (SIC)
• Source Full Name:
  Thermo Electron Research Center, Waltham, Massachusetts; National Institute for Occupational Safety and Health Ohio, Walk-Through Survey Report, 22 pages, 4 references
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/233650/cdc_233650_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]