Isophthalic acid

Guidance on Safe Use

First-aid measures

SKIN

Immediately wash skin with plenty of soap and water after removing contaminated clothing and shoes. Get medical attention if irritation develops or persists.

EYE

Flush immediately with large amounts of water for at least 15 minutes. Eyelids should be held away from the eyeball to ensure thorough rinsing. Get medical attention if irritation persists.

INHALATION

If overcome from exposure to excessive levels of dust or mist, remove affected individual from source of exposure to fresh air. Get medical attention.

INGESTION

Rinse mouth out with water. Do not induce vomiting unless directed by medical personnel.

Never give anything by mouth to an unconscious person.

Keep affected person warm and at rest. Get medical attention.

Fire-fighting measures

HAZARDOUS COMBUSTION PRODUCTS

Combustion may produce hazardous combustion products such as carbon oxides (CO, CO2).

EXTINGUISHING MEDIA

Use water spray, dry chemical, carbon dioxide or fire-fighting foam for Class B fires to extinguish fire.

Do not use water jet.

BASIC FIRE FIGHTING PROCEDURES

Material will burn in a fire.

Evacuate area and fight fire from a safe distance.

Use water spray to cool adjacent structures and to protect personnel. Shut off source of flow if possible. Stay away from storage tank ends. Withdraw immediately in case of rising sound from venting safety device or any discoloration of storage tank due to fire.

Fire fighters must wear positive pressure breathing apparatus with full face mask and full protective equipment.

UNUSUAL FIRE & EXPLOSION HAZARDS

This material, in its finely divided form, presents an explosion hazard when dispersed in a confined or unconfined area in a sufficient concentration and ignited in air. Ignition of a dust cloud in an unconfined area may result in a fireball. Ignition of a dust cloud in a confined space may result in a pressure buildup in equipment.

This material may accumulate static charge which can cause an electrical spark (ignition source) in some cases.

To avoid fire or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before transferring material.

For additional safety information, consult the current editions of the National Fire Protection Association (NFPA) 654 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids, NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, NFPA 77, Recommended Practice on Static Electricity, NFPA 68, Standard on Explosion Protection by Deflagration Venting or similar guidance for your country or region.

Flash Point Not Applicable

Autoignition Temperature 1076.0 - 1112.0 °F (580 - 600 °C) - Dust Cloud in Air

Flammability Limits in Air, Lower, % by Volume Not Applicable

Flammability Limits in Air, Upper, % by Volume Not Applicable

FLAMMABILITY HAZARDS

Dust may form explosive mixture in air when dispersed in a confined space

The ignition of a sufficient concentration of a combustible dust in air in an unconfined space may result in a fireball and explosion.

Accidental release measures

EMERGENCY ACTION

Eliminate and/or shut off ignition sources and keep ignition sources out of the area. Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind. Isolate for 800 meters (1/2 mile) in all directions if tank, rail car or tank truck is involved in fire. Evacuate area endangered by release as required.

ENVIRONMENTAL PRECAUTIONS

If material is released to the environment, take immediate steps to stop and contain release. Prevent or minimize formation of a dust cloud or layer. Eliminate all sources of ignition. Isolate hazard area and deny entry. Caution should be exercised regarding personnel safety and exposure to the released material. Notify

local, provincial and/or federal authorities, if required.

SPILL OR LEAK PROCEDURE

Avoid breathing dust.

Eliminate all sources of ignition (no smoking, flares, sparks or flames in immediate area). Prevent or minimize formation of a dust cloud or layer during cleanup.

This material, in its finely divided form, presents an explosion hazard when dispersed in a confined or unconfined area in a sufficient concentration and ignited in air. Ignition of a dust cloud in an unconfined area may result in a fireball. Ignition of a dust cloud in a confined space may result in a pressure buildup in equipment.

For large spills and releases follow the handling and storage recommendations as detailed in NFPA 654, NFPA 499 and NFPA 77 or similar guidance for your country or region. Grounding, bonding, and intrinsic safety of equipment used should be considered.

Keep unnecessary people away. Isolate hazard area and deny entry. Avoid cleanup procedures that may result in water pollution. Do not touch or walk through spilled material.

Immediately contact emergency personnel. If emergency personnel are unavailable and spill is small, vacuum spilled material. Use a vacuum equipped with a High Efficiency Particulate Aerosol (HEPA) filter. Avoid creating dusty conditions and prevent wind dispersal. Minimize contact of spilled material with soils to prevent runoff to surface waterways.

Use suitable protective equipment.

For personal protection in case of a large spill, use chemical/dust goggles, face shield, boots, and gloves.

If concentration is unknown, a Self-Contained Breathing Apparatus (SCBA) should be used to avoid inhalation of the material. A respirator that will protect against organic vapor and dust/mist may be used where concentrations are known and the respirator's assigned protection factor is adequate.

Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this material.

Follow all fire fighting procedures.

Handling and storage

HANDLING

Do not breathe dust.

This material, in its finely divided form, presents an explosion hazard when dispersed in a confined or unconfined area in a sufficient concentration and ignited in air. Ignition of a dust cloud in an unconfined area may result in a fireball. Ignition of a dust cloud in a confined space may result in a pressure buildup in equipment.

This material may accumulate electrostatic charge which may cause an electrical spark (ignition source) in some cases.

Ground and bond lines and equipment used during transfer to reduce the possibility of static spark-initiated fire or explosion. When airborne dust or a dust cloud is present, do not cut, grind, drill, weld or reuse containers unless adequate precautions are taken against these hazards.

Facilities using this material should assess their potential for combustible dust and static spark hazards and follow applicable federal, state and local laws and regulations and accepted codes and standards.

Avoid accumulation of dust on surfaces and hidden areas where dust may collect in the interior of buildings to minimize secondary dust explosion potential. Clean up dust using approved methods that do not generate dust clouds if ignition sources are present.

Do not eat, drink or smoke in areas of use or storage.

For additional safety information, consult the current editions of the National Fire Protection Association (NFPA) 654 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids, NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, NFPA 77, Recommended Practice on Static Electricity, NFPA 68, Standard on Explosion Protection by Deflagration Venting or similar guidance for your country or region.

STORAGE

Store in tightly closed containers in a cool, dry, isolated, well-ventilated area away from heat, sources of ignition and incompatibles. Avoid contact with strong oxidizers.

Empty containers may contain material residue.

Do not eat, drink or smoke in areas of use or storage.

For additional safety information, consult the current editions of the National Fire Protection Association (NFPA) 654 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids, NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, NFPA 77, Recommended Practice on Static Electricity, NFPA 68 Standard on Explosion Protection by Deflagration Venting or similar guidance for your country or region.

Transport information

Land transport (UN RTDG/ADR/RID)

Shipping

Special provisions / remarks

Special provisions:

Not dangerous goods in the meaning of ADR/RID

Inland waterway transport (UN RTDG/ADN(R))

Shipping

Special provisions / remarks

Remarks:

Not dangerous goods in the meaning of ANDR.

Marine transport (UN RTDG/IMDG)

Shipping

Special provisions / remarks

Remarks:

Not dangerous goods in the meaning of IMDG-Code.

Air transport (UN RTDG/ICAO/IATA)

Shipping

Special provisions / remarks

Remarks:

Not dangerous goods in the meaning of ICAO/IATA-DGR.

Additional transport information

Additional information

Special provisions / remarks / other:

No information provided. Isophthalic acid is not classified as hazardous for transport.

Exposure controls / personal protection

ENGINEERING CONTROLS

Do not breathe dust.

Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit.

It is recommended that all dust control equipment such as local exhaust ventilation and material transport systems involved in handling of this product contain explosion relief vents or an explosion suppression system or an oxygen deficient environment.

Ensure that dust-handling systems (such as exhaust ducts, dust collectors, vessels, and processing equipment) are designed in a manner to prevent the escape of dust into the work area (i.e., there is no leakage from the equipment).

Use only appropriately classified electrical equipment and powered industrial trucks.

OEL: ACGIH TLV (PNOS) (United States)

TWA: 3mg/m3 Form: Respirable dust

TWA: 10 mg/m3 Form: Inhalable

EYE PROTECTION: PERSONAL PROTECTION EQUIPMENT (PPE)

Keep away from eyes. Prevent eye contact by using chemical/dust goggles and face shield.

Have eye washing facilities readily available where eye contact can occur.

SKIN PROTECTION: PERSONAL PROTECTION EQUIPMENT (PPE)

Prevent any skin contact with this material. Use appropriate chemical resistant gloves, clothing and eye/face protection. The correct choice of protective gloves depends upon the chemicals being handled, the conditions of work and use, and the condition of the gloves (even the best chemically resistant glove will break down after repeated chemical exposures). Most gloves provide only a short time of protection before they must be discarded and replaced. Because specific work environments and material handling practices vary, safety procedures should be developed for each intended application. Gloves should therefore be chosen in consultation with the supplier/manufacturer and with a full assessment of the working conditions.

Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this material.

Good personal hygiene practices such as properly handling contaminated clothing, using wash facilities before entering public areas and restricting eating, drinking and smoking to designated areas are essential for preventing personal chemical contamination.

RESPIRATORY PROTECTION: PERSONAL PROTECTION EQUIPMENT (PPE)

Do not breathe dust. Use only with adequate ventilation. If concentration is unknown, a Self-Contained Breathing Apparatus (SCBA) should be used to avoid inhalation of the material. A respirator that will protect against organic vapor and dust/mist may be used where concentrations are known and the respirator's assigned protection factor is adequate. Working without a respirator is only acceptable where the concentration does not exceed recommended exposure levels and ventilation is adequate.

HEALTH HAZARDS

Dust may cause skin, eye and respiratory tract irritation.

POTENTIAL HEALTH EFFECTS, SKIN

Dusts may cause irritation due to abrasion.

POTENTIAL HEALTH EFFECTS, EYE

Dusts may cause mechanical irritation including pain, tearing and redness. Effects may become more serious with repeated or prolonged contact.

POTENTIAL HEALTH EFFECTS, INHALATION

Dusts may cause irritation to the nose, throat and lungs by mechanical abrasion. Symptoms may include sore throat, coughing, labored breathing, sneezing and burning sensation, depending on the concentration and duration of exposure.

Overexposure to this material may cause systemic damage including target organ effects listed under "Toxicological Information".

POTENTIAL HEALTH EFFECTS, INGESTION

Ingestion of large amounts may cause gastrointestinal disturbances.

Overexposure to this material may cause systemic damage including target organ effects listed under "Toxicological Information" .

Ingredient Name: Isophthalic Acid

CAS Number 121-91-5

Concentration 100%

Exposure Limits / Health Hazards 5mg/m3 TWA (respirable); 10 mg/m3 TWA (total) (AIHA - WEEL)

Stability and reactivity

ODOR AND APPEARANCE

Colourless crystals, solid, with slight odour

Combustible Dust Properties:

Maximum Explosion Pressure - Pmax (barg): 7.7

Explosion Severity Index - Kst (bar.m/s): 173 - 220

Minimum Ignition Energy (mJ): 3 - 5

Minimum Ignition Temp. - Dust Cloud (°C): 580 - 600

Minimum Explosible Concentration (g/m3): 40 - 50

Minimum Ignition Temp. - Dust Layer (ºC): >400

Limiting Oxygen Concentration - (vol%): 9 - 10

NOTE: Combustible dust properties are dependent on the moisture content and particle size distribution of the tested material as received. Customers are encouraged to perform testing for explosibility potential for dust accumulated at their site. This data is provided as an indicator of potential explosivity hazard.

Flash Point: Not Applicable

Boiling Point: Not Applicable (Sublimes)

Specific Gravity: 1.53 at 60/60 °F (15.6/15.6 °C)

Melting Point: 653 - 658 °F (345.0 - 347.8 °C)

Percent Volatile: Not Applicable

Vapor Pressure: 0.07 mmHg at 212 °F (100 °C); 0.60 mmHg at 257 °F (125 °C)

Evaporation Rate: Not Applicable

Vapor Density: 1.54 g/cm3 at 68 °F (20 °C) - Air=1

Viscosity: Not Applicable

Solubility in Water: 130 mg/L, 77 °F (25 °C)

Octanol/Water Partition Coefficeint: -2.34

Volatile Organic: Not Applicable

Pour Point: Not Applicable

pH Value: Not Applicable

Bulk Density: No Data

Freezing Point: No Data

Surface Tension: Not Applicable

Molecular Formula: C8H6O4

Molecular Weight: 166.13

Chemcial Family: Carboxylic Acid

Odour Threshold: No Data

STABILITY/INCOMPATIBILITY

Incompatible with oxidizing agents.

HAZARDOUS REACTIONS/DECOMPOSITION PRODUCTS

Combustion may produce carbon oxides (CO, CO2).

HAZARDOUS POLYMERIZATION

Will not occur.

REACTIVITY HAZARDS

Stable

Disposal considerations

Dispose of this material in accordance with all applicable local and national regulations.

Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains and sewers.