Hach Ultra POLYMETRON 9210, Operator'S Manual

Page: 87 / 116

Page B1
SILKOSTAT 9210
Appendix B : Safety Precautions
HEALTH AND SAFETY INFORMATIONS
PRODUCT : OXALIC ACID
The health and safety information on oxalic acid is as follows :
Name :
OXALIC ACID 1. dihydrate Formula : 1. (COOH)
2
. 2H
2
O
2. anhydrous Formula : 2. (COOH)
2
.
CAS N°144-62-7
PHYSICAL PROPERTIES
MELTING POINT
1. 101 °C
2. 190 °C
SOLUBILITY IN WATER About 14%
FIRE AND EXPLOSION HAZARD
Decomposition products include carbon monoxide
(highly flammable and toxic) and carbon dioxide.
HEALTH HAZARD
Classification of risk – Harmful
Harmful in contact with skin
Harmful if swallowed
Harmful if inhaled
Minimum letal dose (LD
50
) = 275 mg/Kg
SAFETY PRECAUTIONS
EYES
Irrigate thoroughly with water ; obtain medical
attention
LUNGS
Remove exposure, rest and keep arm ; obtain
medical attention
INGESTION
Wash out thoroughly with water ; give plenty of water
of drink ; obtain medical attention
CHEMICAL HAZARDS AND STABILITY
STABILITY Stable
SPECIAL HAZARDS
Mixtures with sodium chlorite can explode on the
addition of water.
WASTE DISPOSAL
Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped
with an after burner and scrubber. Dispose in safe
manner consistent with Local Authority chemical
waste regulations. For guidelines on disposal consult
the requirements of the Control of Pollution Act
(1974) and the Control of Pollution (Special Wastes)
Regulations (1980 S1 1709).