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Chemical Sampling Information (CSI)
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General Description

Synonyms: Methylamine, p-Phenylene bis-; p-Phenylene-bis-(Methylamine); p-Xylylenediamine; 1,4-bis(aminomethyl)benzene; Xylenediamine

OSHA IMIS Code Number: R221

Chemical Abstracts Service (CAS) Registry Number: 539-48-0

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: PF9000000

Chemical Description and Physical Properties:

molecular weight: 136.20
molecular formula: C8H12N2
boiling point: 230°C @ 1.3 kPa
melting point: 62-4°C

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Two Coated Glass Fiber Filters (37 mm) in 3 piece cassette. Coating is Sulfuric Acid.
    analytical solvent: 50mM 1-heptanesulfonic acid & 50mM Phosphate buffer in 75/25 Water/Acetonitrile at pH 3.0
    maximum volume: 15 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Liquid Chromatography; HPLC/UL58
    method reference: 2 (OSHA 105)
    sampling analytical error: 0.08
    method classification: Fully Validated

Conditions: Column: Supelcosil (TM) LC-ABZ Mobile Phase: 50mM 1-heptanesulfonic acid & 50mM phosphate buffer in 75/25 Water/Acetonitrile Detector Wavelength: 208 nm

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