NAME: Maleic Anhydride

SYNONYM(s): 2,5-Furandione; cis-Butenedioic anydride; Toxilic anhydride

IMIS: 1618

CAS: 108-31-6

NIOSH: RTECS ON3675000; 46783

DOT: UN2215 Corrosive

DESCRIPTION:

Colorless or white solid with a penetrating odor.
MW: 98
BP: 202 F
VP: 0.16 mm
MP: 52.8 C

INCOM: Strong oxidizers; alkali metals, caustics, amines at >150 F

OSHA GENERAL INDUSTRY PEL: 0.25 ppm, 1 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 0.25 ppm, 1 mg/m3 TWA

ACGIH TLV: 0.25 ppm, 1 mg/m3 TWA

NIOSH REL: 0.25 ppm TWA

SYMPTOM(s): Conjunctivitis, photophobia, double vision; nasal, upper respiratory irritation; broncheal asthma; dermatitis

HEALTH EFFECTS: Irritation-Eye, Nose, Throat, Lungs, (Edema), Skin---Marked (HE14) Asthma (HE9); Chronic (Cumulative) Toxicity (HE2)

ORGAN: Eyes, respiratory system, skin

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):

MEDIA: Two Coated Glass Fiber Filters (37 mm) Coating is 10 mg Veratryamine and 10 mg di-n-octylphthalate.
ANL SOLVENT: (90:10) Acetonitrile/Dimethylsulfoxide
MAX V: 60 Liters   MAX F: 0.5 L/min
ANL 1: High Performance Liquid Chromatography; HPLC/UV
REF: 2 (OSHA 86
CLASS: Fully Validated
NOTE: Store filters under refrigeration and use within 1 month. Small interfering peaks start appearing after that time.

COND: Column 10u C8; Mobile Phase Acetonitrile/Water/Phosphoric Acid (30:70:0.1); Flow rate 1.2 mL/min; UV Dectection 254nm Retention Time 6 min.; DL 2 ug/sample.