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Date of Issue : Mar 2002 1. IDENTIFICATION
General Product Name : NAPHTHALENE Other Names : NAPHTHALENE WHITE TAR; TAR CAMPHOR; SUBLIMED NAPHTHALENE UN No. : 1334 Dangerous Goods Class : 4.1 Subsidiary Risk : None Allocated Hazchem Code : 2Z Pack Group : III EPG : 20 Poisons Schedule : 6 Uses : Intermediate (phthalic anhydride, naphthol, chlorinated naphthalenes and naphthol derivatives, dyes); moth repellant, fungicide, smokeless powder, cutting fluid, lubricant, synthetic resins, synthetic tanning, textile chemicals, preservative, emulsion breakers, scintillation counters, antiseptic.
1.1 Physical Description / Properties
Appearance : White volatile crystalline flakes with an aromatic odour. Formula : C10H8 Boiling Point : 218 deg C Melting Point : 80.1 deg C Vapour Pressure : 0.082 mm Hg (1 atmosphere) Specific Gravity : 1.033 (water = 1) Flash Point : Closed Cup 78.9 pH : N/A () Solubility in water : Insol g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : 0.9 Upper Explosion Limit : 5.9 1.2 Other Properties
Soluble in benzene, absolute alcohol and ether 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
May cause liver and kidney damage. May cause methemoglobinemia, cyanosis, convulsions and death. May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. Exposure may cause anemia and other blood abnormalities. Eye
Causes eye irritation. Vapours can cause eye irritation. Skin
May cause skin irritation. May be absorbed through the skin in harmful amounts. May cause skin sensitisation, an allergic reaction, which becomes evident upon re-exposure to this material. Inhaled
May cause respiratory tract irritation. May cause effects similar to those described for ingestion. 2.2 Health Effects - Chronic
May cause anemia and other blood cell abnormalities. Inhalation, ingestion, or skin absorption may cause eye toxicity, including corneal injury, optical neuritis, blurring vision, and possible cataract formation. May cause liver and kidney damage. Target organs : blood, kidneys, liver, eyes.
2.3 First Aid
Swallowed
If victim is conscious and alert, wash out mouth with water and then drink plenty of water. Seek a physician.
Eye
Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open and consult an eye specialist.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Seek medical attention if irritation develops or persists. Do not attempt to neutralise with chemical agents.
Inhaled
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Seek medical attention if cough or other symptoms appear. Keep patient calm.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
No specific antidote exists. Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Oral LD50 = 490 mg/kg (Rat) ; 533 mg/kg (Mouse) Dermal LD50 = >20,000 mg/kg (Rabbit) ; >2500 mg/kg (Rat) Not listed as a carcinogen by ACGIH, IARC, NOISH, NTP or OSHA.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
The following exposure standards are recommended by Worksafe : Naphthalene : TWA = 10 ppm (52 mg/m3) STEL = 15 ppm (79 mg/m3)
3.2 Engineering Controls
Use explosion-proof ventilation equipment. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
3.3 Personal Protection
Eye protection - wear chemical type googles with face shield. Skin protection - wear gloves and lab coat when handling. Respiratory protection - wear a NIOSH or MSHA approved air purifying or air supplied respirator.
3.4 Flammability
Material is a flammable solid. Keep away from sources of heat, ignition and sparks. Use flameproof fittings. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Use with adequate ventilation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue (liquid and/or vapour) and can be dangerous. Do not pressurise, cut, weld, braze, solder, drill, grind or expose such containers to heat, sparks or open flames. Keep away from sources of ignition. Store in a cool, dry well-ventilated area away from incompatible substances. Keep containers tightly closed when not in use and during transport. Avoid contact with eyes and prolonged or repeated skin contact. Avoid continuous or repetitive breathing of dust.
4.2 Packaging / Labelling UN No. 1334 Class 4.1 Sub Risk None Allocated Hazchem Code 2Z Pack Group III EPG No. 20 Shipping Name NAPHTHALENE Hazard HARMFUL
Risk Phrases R20/21/22 Harmful by inhalation, in contact with skin and if swallowed.
Safety Phrases S24/25 Avoid contact with skin and eyes.
4.3 Spills and Disposal
Spills
Clean-up personnel should wear full protective clothing including breathing apparatus. Avoid raising dust. Extinguish all ignition sources - NO SMOKING. Prevent entry into sewers and waterways.
Scoop up with non-sparking tools, then place into suitable containers and hold for waste disposal.
Disposal
Incinerate in a chemical incinerator equipped with an afterburner and scrubber. Follow all federal, state and local regulations.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
May burn if heated. Molten material burns fiercely on ignition. Explosive boiling can occur on contact of boiling molten material with water. Vapours may recrystallise spreading the fire hazard. Stable at room temperature in closed containers under normal storage and handling conditions. Incompatible with aluminium trichloride and benzoyl chloride, chromic anhydride and oxidising agents. Hazardous decomposition products include carbon monoxide and carbon dioxide. Hazardous polymerisation has not been reported. Dusts at sufficient concentrations can form explosive mixtures with air.
Extinguishing Media
Fire fighters should wear full protective clothing including self-contained breathing apparatus. Use carbon dioxide, foam or dry chemical. Do not use water spray directly. 5 OTHER INFORMATION
Other Information
In air, substance rapidly degrades by reaction with photochemically-produced hydroxyl radicals. In water, substance undergoes volatilisation, photolysis, adsorption, and biodegredation. On soil, substance is slightly adsorbed and also biodegraded. Ecotoxicity : LC50 = 150 mg/L/96hr (Mosquito Fish) LC100 = 4-5 mg/L/1hr (Sunfish) Shelf life of product - 1 year minimum in sealed containers protected from light and air.
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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