MATERIAL SAFETY DATA SHEET



       1.    PRODUCT IDENTIFICATION





PRODUCT NAME:                           EXT-1032

CHEMICAL Name:                          Glycol Blend



 ITWC, Inc.                                                                                         Phone: 641)-528-3000

P.O. Box 247                                                                                         Fax: (641)-528-5403

106 South Main Street                                                                           Toll Free: (888)-489-2462

Malcom, IA 50157                                                                                     www.itwcinc.com

Emergency Telephone Number: (800)-424-9300 CHEMTREC



       2.    HAZARD IDENTIFICATION



ROUTES OF ENTRY:

INHALATION?                                                        YES

SKIN CONTACT?                                                      YES

EYE CONTACT?                                                       YES

INGESTION?                                                         YES

MAY BE FATAL IF SWALLOWED. Human deaths have been reported following intentional ingestion of BDO. The lethal dose

of BDO in humans (in its pure form) is estimated to be 5.4 ?20 grams (approx 0.2 ?0.7 fluid ounces. May cause temporary

nervous system depression with anesthetic effects such as dizziness, headache, drowsiness, nausea, confusion, incoordination,

and loss of consciousness. Gross overexposure of BDO by ingestion may cause damage to the kidneys, central nervous system

(CNS), &/or respiratory system. Other side effects may be gastric disturbances.

          CARCINOGENICITY:

 No component of this product at levels greater than 0.1% is identified as a carcinogen by the NTP, IARC, or OSHA.

NTP (National Toxicology Program)?                                                               No

IARC (International Agency for Research on Cancer)?                                              No

OSHA REGULATED?                                                                                  No



          MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE:

 Individuals with preexisting diseases of the central nervous system, or possibly the kidneys, may be at increased risk from

exposure to this chemical.



HEALTH HAZARDS:

           NOTES:

Repeated or prolonged exposure to BDO can produce nervous system damage. There is experimental evidence that BDO may

cause toxicity to the developing fetus at maternally toxic doses.

           INHALATION:

 No significant health hazards identified. At normal ambient temperatures this product will be unlikely to present an inhalation

hazard because of its low volatility.

           SKIN:

 Contact may cause slight irritation. May be absorbed through the skin to cause effects similar to ingestion. Prolonged or repeated

skin contact may cause skin irritation with discomfort or rash.

           EYE:

Slightly irritating to the eyes, with discomfort, tearing, or blurring of vision.

           INGESTION:



       3.    COMPOSITION/INFORMATION ON INGREDIENTS

                                                                                          EXPOSURE LIMITS

INGREDIENT NAME              CAS NUMBER               %      OSHA PEL                         ACGIH TLV

1,4-Butanediol               110-63-4                <40     Not established                  Not established

Triethylene Glycol           112-27-6                <65     Not established                  Not established

Tetraethylene Glycol         112-60-7                 1      Not established                  Not established



4.          FIRST AID MEASURES



Revision Date: 2-29-08                                                                                            MSDS

Product: EXT-1032                                                                                             Page 1 of 5

          INHALATION:

 Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention if

symptoms appear.

          SKIN:

 Immediately wash exposed skin with soap and water. Remove contaminated clothing and shoes. Wash contaminated clothing

thoroughly before reuse. Thoroughly clean shoes before reuse. Get medical attention if symptoms appear.

          EYE:

 Immediately flush eyes with large amounts of water, preferably, lukewarm water for at least 15 minutes, holding eyelids open all

the time to ensure that the eyes are being irrigated. Get medical attention if irritation occurs.

          INGESTION:

Get medical attention immediately. DO NOT INDUCE VOMITING unless directed to do so by medical personnel. Rinse mouth

with water. Dilute stomach by giving 1 to 2 cups of water or activated charcoal slurry (To prepare activated charcoal slurry,

suspend 50 grams activated charcoal in 400 ml of water and mix thoroughly. Give 5 ml/kg of body weight, or 350 ml for an

average adult.)

DO NOT GIVE ANYTHING BY MOUTH TO AN UNCONSCIOUS PERSON. If vomiting occurs spontaneously, keep head

below hips to prevent breathing vomit into lungs. Treatment should in general be symptomatic and directed to relieving any

effects.



          NOTES TO PHYSICIAN:

 There is no specific antidote. Treatment should be directed at control of symptoms and the clinical condition. Pure 1,4-

Butanediol is a pharmacologic analogue of gamma-butyrolactone and is metabolized to gamma-hydroxybutyrate.

Lower oral doses of pure 1,4-Butanediol (less than 2 milliliters) may result in diaphoresis, confusion, agitation, ataxia, and a

shallow level of consciousness.

Moderate doses of pure 1,4-Butanediol (2-5 milliliters) may result in loss of consciousness, lethargy, amnesia, agitation,

combativeness, ataxia, and urinary incontinence.

Higher doses of pure 1,4-Butanediol (greater than 5 milliliters) may result in dysarthria, loss of consciousness, dizziness,

vomiting, urinary and/or fecal incontinence, amnesia, respiratory depression and death.

The lethal dose of pure 1,4-Butanediol in humans is estimated to be 5.4-20 milliliters or 0.2 ?0.7 fluid ounces. Chronic abuse

may cause physical dependency with severe withdrawal symptoms, including auditory, visual and tactile hallucinations, paranoid

delusions, agitation and tremor when use is discontinued.



       5.    FIRE FIGHTING MEASURES



FLASH POINT (Method Used):              >=311?F (155?C) (Open Cup)



FLAMMABLE LIMITS:

      LEL (Lower Explosion Limit)=                 Not Available.

      UEL (Upper Explosion Limit)=                 Not Available.



          EXTINGUISHING MEDIA:

Foam, water spray, dry chemical, carbon dioxide (CO2).

For SMALL FIRE ?use DRY chemical powder. For LARGE FIRE ?use water spray, fog or foam. (Alcohol resistant foam). Do

not use water jet or straight streams of water as this may spread fire. NOTE: Direct application of water or foam may cause

frothing. Use water spray to cool containers exposed to fire.



          SPECIAL FIRE FIGHTING PROCEDURES:

Prevent human exposure to fire, fumes, smoke, and products of combustion. Evacuate non-essential personnel. Firefighters

should wear NIOSH approved positive pressure self-contained breathing apparatus with full-face mask and impervious protective

clothing. Do not spray pool fires with direct water stream (see above).



        UNUSUAL FIRE & EXPLOSION HAZARDS:

 May be combustible at high temperature. Products of combustion are carbon oxides (carbon monoxide (CO) & carbon dioxide

(CO2)) and Tetrahydrofuran. When heated in the presence of sulfuric acid (H2SO4), forms highly flammable tetrahydrofuran.

This material is not explosive as defined by established regulatory criteria. Hot organic chemical vapors may spontaneously

ignite or explode when mixed with air, even at temperatures below their published autoignition temperature. Vapors are heavier

than air and may collect in low areas.



       6.    ACCIDENTAL RELEASE MEASURES



     STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED:

     o Stop the leak / spill.

     o Review Section -Fire & Explosion Hazard Data before proceeding with clean up.

     o Use appropriate personal protective equipment. (See Section ­Exposure Controls/Personal protection).

     o Contain / dike spilled material.



Revision Date: 2-29-08                                                                                              MSDS

Product: EXT-1032                                                                                               Page 2 of 5

     o        Ensure runoff does not reach a waterway.

     o        Minimize contact of spilled material with soils to prevent runoff to surface waterways.



     o        Soak up liquid with noncombustible inert absorbent and transfer to dry, clean, covered, sealed liquid-proof containers.

              (Soil may be used in the absence of other suitable materials.)

     o        Sweep, shovel, or vacuum up and place into dry, clean, covered, sealed liquid-proof containers for recovery or disposal.

     o        Flush spill area with water.

     o        Comply with Federal, State, and local regulations on reporting releases.



         7.     HANDLING AND STORAGE



         PRECAUTIONS TO BE TAKEN IN HANDLING & STORING:

Do not ingest. Avoid contact with eyes, skin, and clothing. Use only with adequate ventilation. Avoid breathing vapor or mist.

Wash thoroughly after handling.



Keep container tightly closed. Keep container in a cool, dry, well-ventilated area. Store and use away from heat, sparks, open

flame, or any other ignition source. Do not store with powerful inorganic oxidants, such as nitric acid or hydrogen peroxide.

Limit steam pressure for heating tank cars, tank trucks, and storage tans to 40 psig to avoid possibility of overheating.



         8.     EXPOSURE CONTROLS / PERSONAL PROTECTION



       VENTILATION:

Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their respective

occupational exposure limits.



          RESPIRATORY PROTECTION:

Use only with adequate ventilation. Do not breathe vapor or mist. If ventilation is inadequate, use respirator that will protect

against organic vapor and dust/mist. If respirator is used, a Respiratory protection program must be in compliance with OSHA

requirements in 29 CFR 1910.134.



         SKIN PROTECTION:

Do not get on skin or clothing. Wear clothing and footwear that cannot be penetrated by chemicals or oils (impervious apron,

boots). Wear gloves that cannot be penetrated by chemicals or oil (PVC or Neoprene gloves). If there is potential for contact with

hot/molten material, wear heat resistant impervious clothing and footwear.



         EYE PROTECTION:

 Avoid contact with eyes. Wear chemical splash goggles or face shield. Do not wear contact lenses when working with

chemicals.



         OTHER PROTECTIVE CLOTHING OR EQUIPMENT:

Safety showers and eyewash stations should be available.



          WORK/HYGIENIC PRACTICES:

Wash hands, forearms, and face thoroughly after handling compounds and before eating, smoking, using lavatory, and at the end

of the day. Educate and train employees in safe use of product. Follow all label instructions.



         9.     PHYSICAL / CHEMICAL CHARACTERISTICS



APPEARANCE (physical form, color, texture, etc.)                    Viscous, clear liquid.

ODOR:                                                               Low odor.

MELTING POINT:                                                      Not established

FREEZE POINT:                                                       Not established

BOILING POINT:                                                      Not established

VAPOR PRESSURE (mm Hg):                                             Not established

VAPOR DENSITY (Air = 1)                                             Not established

SPECIFIC GRAVITY (H2O = 1):                                         Not established

EVAPORATION RATE (Butyl Acetate = 1):                               Not established

SOLUBILITY IN WATER:                                                Easily soluble



         10. STABILITY AND REACTIVITY



       STABILITY:

Stable under normal conditions.



Revision Date: 2-29-08                                                                                               MSDS

Product: EXT-1032                                                                                                Page 3 of 5

         CONDITIONS TO AVOID (if unstable):

Heat, heated surfaces, static electricity, electric arcs, sparks & flames.



         INCOMPATIBILITY (MATERIALS TO AVOID):

Reactive with oxidizing agents or bleaching agents such as chlorine, oxygen, permanganates, perchlorates, percarbonates,

peroxides, chromates, hypochlorites, nitric acid, sulfuric acid, and hydrogen peroxide.



         HAZARDOUS DECOMPOSITION OR BYPRODUCTS:

Products of combustion are carbon oxides (carbon monoxide (CO) & carbon dioxide (CO2)) and Tetrahydrofuran.



          HAZARDOUS POLYMERIZATION:

Will not occur.

          CONDITIONS TO AVOID (if polymerization may occur):

Not applicable.

          OTHER:

Avoid inhalation of vapors and spray mist. Avoid all possible sources of ignition (spark or flame).



     11.       TOXICOLOGICAL INFORMATION

     Information is bases on individual ingredients.

     Summary 1,4-Butanediol

     1,4-Butanediol is NOT intended for human consumption and is not approved by the U.S. Food and Drug Administration for

     such uses. Acute lethal toxicity of 1,4-Butanediol (BDO) is low via all routes of exposure. Major toxic signs by oral

     administration are CNS depression and respiratory failure. In animals and humans, BDO is rapidly absorbed and

     metabolized to gamma-hydroxybutryrate (GHB) which is thought to produce the neurotoxic effects of BDO. Because there

     have been a number of human poisonings from accidental or intentional ingestion, BDO is regarded as a hazardous

     chemical. BDO can competitively inhibit the enzyme that metabolizes alcohol, hence combined exposures may increase the

     toxic effects of alcohol and delay and prolong the toxicity of BDO. BDO is a slight irritant to the skin, eyes, and respiratory

     tract but not a skin sensitize. Repeated exposures of rodents to high dos resulted in sedation, body weight decreases,

     alterations in blood and clinical chemistry parameters and minimal microscopic structural changes in organs/ tissues. BDO

     is not teratogenic or selectively toxic to the embryo or fetus. A reduction in fetal body weight was observed in rats and mice

     following high oral doses but this effect was considered secondary to maternal toxicity. BDO is not genotoxic in in vitro

     assays.



     1,4-Butanediol 110-63-4

     Acute Toxicity- Lethal Doses

     LC50(inhl) Rat <15,000 MG/M3 4 hours (aerosol)

     LD50(oral) Rat 1830 MG/KG BWT

     LD50(skin) Rat >5000 MG/KG BWT



     Triethylene Glycol CAS# 112-27-6

     Oral LD50: 17g/kg (rats); Practically non-toxic to animals. Practically non-toxic to humans (oral lethal dose: 5-15 g/kg)

     Dermal LD50: >5g/kg (rabbit); slightly toxic to animals by absorption.

     Inhalation LC50: >4.4mg/l (rat, 4hrs); practically non-toxic to animals.

     Mutagenicity: In vitro, does not show mutagenic potential in Ames test. In vivo, no information.



     12.       ECOLOGICAL INFORMATION

     Summary 1,4-Butanediol

Ecotoxicity

This material in not classified as harmful or toxic to fish. This material in not classified as harmful or toxic to invertebrates. This

material is not classified as harmful or toxic to algae or higher aquatic plants.



Environmental Fate and Pathway

This material is expected to be readily biodegradable. Estimated half-life from a model river and model lake is 18,600 and

202,900 days respectively. Undergoes slow aquatic oxidation to succinic acid and carbon dioxide. Not expected to undergo

hydrolysis. Undergoes photooxidation with OH radicals in air with a half-life of 24 hours. Expected to have high mobility in

soils. Not expected to volatilize from surface waters. Not likely to absorb to suspended solids and sediment in water.

Volatilization from dry soil surfaces is expected. This material is not expected to bioaccumulate.

Acute Toxicity to fish:

LC50 / 96 hours Japanese medaka > 100mg/l

Acute Toxicity to aquatic invertebrates:

EC50 / 48 hours daphnia >1000mg/l

Toxicity to aquatic plants:

EC50 / 72 hours green algae. >1000mg/l

Toxicity to microorganisms:

No Data Available



Revision Date: 2-29-08                                                                                                MSDS

Product: EXT-1032                                                                                                 Page 4 of 5

Chronic toxicity to fish:

Not Data Available

Chronic toxicity to aquatic invertebrates:

EC50 / 21 day daphnids. >85mg/l



      13.             DISPOSAL CONSIDERATIONS



           WASTE DISPOSAL METHOD:

 Avoid contact of spilled material and runoff with soil, sewers, and surface waterways. Preferred method of disposal is

incineration. Dispose of material in accordance with all Federal, State and local regulations. Local regulations may be more

stringent than Federal or State.



          EMPTY CONTAINER PRECAUTIONS:

 Empty containers may contain harmful, flammable/combustible or explosive residue or vapors. Do not cut, grind, drill, weld,

reuse, or dispose of containers unless adequate precautions are taken against these hazards. Labels should not be removed from

containers until they have been cleaned. Do not incinerate closed containers.



      14.             TRANSPORTATION INFROMATION



      DOT CLASSIFICATION: Non-regulated



      IMDG (SEA TRANSPORT): Non-regulated



      ICA/LATA (AIR TRANSPORT):Non-regulated



15.         REGULATORY INFORMATION



         OSHA HAZARD COMMUNICATION STATUS:

This product is considered hazardous as defined under the criteria of the Federal OSHA Hazard Communication Standard 29

CFR 1910.1200.



RCRA STATUS:

To the best of our knowledge, if discarded in its purchased form, this product would not be considered a hazardous waste either

by listing or by characteristic. However, under RCRA, it is the responsibility of the user of products to determine, at the time of

disposal, whether a product meets any of the criteria for a hazardous waste. This is because product uses, transformations,

mixtures, processes, etc., may render the resulting material hazardous, under the criteria of ignitability, corrosivity, reactivity,

and toxicity (40 CFR 261.20-24).



         US INVENTORY (TSCA):

The ingredients of this product are listed on the TSCA inventory or are not required to be listed on the TSCA inventory.



SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT (SARA), TITLE III:

      Sections 301-303 ?Emergency Planning - Extremely Hazardous Substances:

                None.

      Section 304 ?Emergency Release Notification ?Reportable Substances:

                None.

      Section 311/312 ?Community Right-to-Know Reporting Requirements - Emergency Hazard Categories:

                1,4-Butanediol: Immediate health hazard.

      Section 313 ?Toxic Chemical Notification & Release Inventory Reporting ?Listed Substances:

                None.



            16.       OTHER INFORAMATION

This information must be included in all MSDSs that are copied and distributed for this material.

HMIS RATINGS:

HEALTH                               FLAMMABLILITY 1                                                 REACTIVITY

                 1                                                                                                             0

        (0=Minimal; 1=Slight; 2=Moderate; 3=Serious; 4=Severe)

PREPARED BY: ITWC Compliance Dept. (lrt)

APPROVED BY: ITWC Director of Technical Service. (sf)

This information is furnished without warranty, expressed or implied, except that it is accurate to the best knowledge of ITWC, Inc. The data on

this sheet relates only to the specific material designated herein. ITWC, Inc. assumes no legal responsibility for use or reliance upon these data.

                                           Visit our website at www.ITWCINC.com or call (888)-489-2462









Revision Date: 2-29-08                                                                                                           MSDS

Product: EXT-1032                                                                                                            Page 5 of 5