Product Name	:	Caustic Soda (SOL)
CAS number	:	1310-73-2
UN number	:	1824
Formula	:	NaOH
Odour	:	Odour Unpleasant
Appearance	:	Clear, colourless liquid
Strength	:	30% and 47% w/w minimum
Solubility in water	:	Complete Solubility in water Soluble
Specific gravity	:	1.51 to 1.54
Boiling point	:	145°C for 50% solution
Melting point	:	8  oC
Impurities	:	Carbonate as Na2CO3 0.4% w/w maximum Chloride as NaCl 0.05% w/w maximum Fe content 25 ppm maximum
Vapour pressure	:	6.3 mmHg at 40°C
pH	:	Strong base > 14
Vapour pressure	:	8 mbar at 20   oC
Skin absorption/irritation	:	YES
TLV Country NL Year  1995	:	ppm 2 C mg/m3
Pollution category   1994	:	D

Synonyms : Caustic; Liquid caustic soda; Lye solution; Soda lye; Sodium hydroxide NaOH Molecular formula HONa Molecular weight 40 CAS number 1310-73-2 EINECS number 215-185-5

Sodium Hydroxide Storage and handling:  Store in a tightly closed container in a designated area with adequate ventilation. Keep away from acids. Caustic soda lye is corrosive in nature. Proper handling procedures must be followed to prevent vigorous boiling, splattering or violent eruption of the diluted solution. Always add caustic soda lye to water and provide agitation. Refer to the Safety Data Sheet (SDS) for detailed information on storage and handling.     Safety Wear all the necessary personal protective equipment (PPE). Ensure adequate ventilation. Prevent breathing of mist or vapours. Prevent contact with skin, eyes and clothing. Always refer to the SDS for detailed information on safety.
First aid Eye contact: Immediately flush eyes with plenty of water, occasionally lifting the upper and lower eyelids and rotating the eyeballs. Continue flushing the eyes for at least 5 minutes.
Skin contact: Remove contaminated clothing and immediately wash skin for minimum of 15 minutes. Call a physician.
Ingestion: Do not induce vomiting. If the person is conscious, give 2 or more glasses of water. If unconscious, never give anything by mouth. Call a physician immediately.
Inhalation: Shift the affected person to fresh air. If the person is not breathing give artificial respiration. Call a physician.
Spills and disposal Do not touch the spilled material. Stop leakage if possible without personal risk. Absorb spillage with sand or other non-combustible material(s). Collect spilled material in appropriate containers for disposal. Move containers away from the spill site to a safe area. Isolate hazardous area and restrict
| deny entry of personnel. Do not dispose of waste to a sewer system or with normal garbage. Waste must be disposed of in accordance with federal, state or local regulations, as applicable. Contact E-mail : mail @ rxmarine.com Website www.rxmarine.com