NANO NXC 0020, User Manual

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59
cycling refrigerated air dryer
R
1
Occupational Exposure Limits
HAZARDOUS INGREDIENT(S) TWA TWA STEL STEL
ppm mg/m3 ppm mg/m3
1,1,1,2- Tetrafluoroethane 1000 4240 - - OES
(HFC 134a)
PHYSICAL AND CHEMICAL PROPERTIES
Form: liquified gas
Color: colorless
Odor: slight ethereal
Boiling Point (Deg C): -26.2
Vapor Pressure (mm Hg): 4270 at 20 Deg C
Density (g/ml): 1.22 at 20 Deg C
Solubility (Water): insoluble
Solubility (Other): soluble in: chlorinated solvents, alcohols, esters
Vapor Density (Air= 1): 3.66 at bubble point temperature
STABILITY AND REACTIVITY
Hazardous Reactions: Certain mixtures of HFCs and chlorine may be flammable or reactive
under certain conditions.
Incompatible materials:
finely divided metals, magnesium and alloys containing more than
2% magnesium. Can react violently if in contact with alkali metals
and alkaline earth metals -sodium, potassium, barium.
Hazardous Decomposition Product(s):
hydrogen fluoride by thermal decomposition and hydrolysis.
TOXICOLOGICAL INFORMATION
Inhalation
High exposures may cause an abnormal heart rhythm and prove suddenly fatal. Very high atmospheric
concentrations may cause anaesthetic effects and asphyxiation.
Skin Contact
Liquid splashes or spray may cause freeze burns. Unlikely to be hazardous by skin absorption.
Eye Contact
Liquid splashes or spray may cause freeze burns.
Ingestion
Highly unlikely - but should this occur freeze burns will result.
Long Term Exposure
A lifetime inhalation study in rats has shown that exposure to 50,000ppm resulted in benign tumors of
the testis. The increased tumor incidence was observed only after prolonged exposure to high levels,
and is considered not to be of relevance to humans occupationally exposed to HFC 134a at or below the
occupational exposure limit.