Vapco Products, Inc.
Safety Data Sheet
Glycol Inhibitor

SECTION 1: Identification

1.1 GHS Product identifier
Product name: Glycol Inhibitor
Product number: GI-1, GI-5, GI-55
Brand: Vapco

1.3 Recommended use of the chemical and restrictions on use
Glycol Inhibitor

1.4 Supplier’s details
Name: Vapco Products, Inc.
Address: 401 Marshall Road, Valley Park, Missouri 63088, USA
Telephone: (636) 923-2121
Fax: (636) 923-3002
email: [email protected]

1.5 Emergency phone number
(800) 255-3924

SECTION 2: Hazard identification

General hazard statement
EMERGENCY OVERVIEW: This product is clear liquid with no odor.Health Hazards: May cause serious eye irritation.May cause skin and/or respiratory irritation.Flammability Hazards: This product is not flammable.Reactivity Hazards: Corrosive to metal.Environmental Hazards: This product may have adverse effects to the aquatic environment.

2.1 Classification of the substance or mixture
GHS classification in accordance with: OSHA (29 CFR 1910.1200, 2024)
– Eye damage/irritation, Cat. 2A
– Corrosive to metals, Cat. 1
– Skin corrosion/irritation, Cat. 2
– Specific target organ toxicity (single exposure), Cat. 3

2.2 GHS label elements, including precautionary statements
Signal word: Warning

Hazard statement(s)
H290 May be corrosive to metals
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary statement(s)
P234 Keep only in original container.
P261 Avoid breathing dust/fume/gas/mist/vapors/spray.
P264 Wash hands thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear eye protection/face protection/protective gloves.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P312 Call a POISON CENTER/doctor if you feel unwell.
P321 Specific treatment (see First Aid on this label).
P332+P313 If skin irritation occurs: Get medical advice/attention.
P337+P313 If eye irritation persists: Get medical advice/attention.
P362+P364 Take off contaminated clothing and wash it before reuse.
P390 Absorb spillage to prevent material-damage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P406 Store in a corrosive resistant container with a resistant inner liner.
P501 Dispose of contents/container to the specifications of local, regional, national, and international regulations.

SECTION 3: Composition/information on ingredients

3.2 Mixtures

Hazardous components	CAS no.	Concentration
1. Phosphoric acid, Dipotassium salt (EC no. 231-834-5)	7758-11-4	50 – 70 % (weight)
2. Water (EC no. 231-791-2)	7732-18-5	30 – 50 % (weight)

SECTION 4: First-aid measures

4.1 Description of necessary first-aid measures
General advice: Never give anything by mouth to an unconscious person.If you feel unwell, seek medical advice (show the label where possible).
If inhaled: First, take proper precautions to ensure your own safety before attempting rescue, then remove the exposed person to fresh air.Keep at rest in a position comfortable for breathing.Get medical advice/attention.If breathing becomes difficult, remove victim to fresh air.If necessary, use artificial respiration to support vital functions.Seek medical attention.
In case of skin contact: Immediately drench affected area with water for at least 15 minutes.Remove contaminated clothing immediately.Obtain medical attention if irritation develops or persists.
In case of eye contact: Immediately rinse with water for at least 15 minutes.Remove contact lenses, if present and easy to do.Continue rinsing.Obtain medical attention if irritation develops or persists.
If swallowed: Rinse mouth.Do NOT induce vomiting.Obtain medical attention.If large quantities are swallowed, call a physician or poison control center.If professional advice is not available, do not induce vomiting.Never give anything to someone who is unconscious or cannot swallow.Seek medical advice and take a copy of the SDS with the victim.

4.2 Most important symptoms/effects, acute and delayed
Exposure to skin and eyes may cause immediate or delayed irritation.Respiratory irritation may be caused from inhalation.Ingestion may cause nausea, vomiting, and diarrhea.

4.3 Indication of immediate medical attention and special treatment needed, if necessary
Medical Conditions Aggravated by Exposure: Pre-existing skin, respiratory system or eye problems may be aggravated by prolonged contact.Recommendations to Physicians: Treat symptoms and eliminate overexposure.

SECTION 5: Fire-fighting measures

5.1 Suitable extinguishing media
Water spray, fog, carbon dioxide (CO2), alcohol-resistant foam, dry chemical, or sand.Use appropriate media for surrounding fire.

5.2 Specific hazards arising from the chemical
Explosion Sensitivity to Mechanical Impact: No.Explosion Sensitivity to Static Discharge: No.

5.3 Special protective actions for fire-fighters
Precautionary Fire Measures: Exercise caution when fighting any chemical fire.
Firefighting Instructions: Use dry chemical, foam, or carbon dioxide (CO2).Do not breathe fumes from fire or vapors from decomposition.Do NOT fight fire when fire reaches containers; evacuate area.Fight fire remotely due to the risk of explosion.Shut off all sources of ignition.Use water spray or fog for cooling exposed containers.
Protection During Firefighting: Do not enter fire area without proper protective equipment, including respiratory protection.Wear NIOSH-approved Self-Contained Breathing Apparatus with full body protective clothing.
Hazardous Combustion Products: Oxides of phosphorus and oxides of potassium.

SECTION 6: Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures
General Measures: Do not get in eyes, on skin, or on clothing.Do not breathe vapors, spray, mist, gas.Keep away from heat, ignition sources, and other sparks.No smoking.
For Emergency Personnel: Equip cleanup crew with proper protection.Eliminate ignition sources, then ventilate area.Isolate area and evacuate unnecessary personnel.Call for trained personnel as soon as conditions permit.
For Non-Emergency Personnel: Use appropriate personal protective equipment (PPE).Evacuate unnecessary personnel and stop leak if safe to do so.

6.2 Environmental precautions
Construct a dike to prevent spreading of dilution water.If possible, prevent entry to sewers, storm drains, surface waters, and soils.

6.3 Methods and materials for containment and cleaning up
For Containment: Ventilate the area.Contain any spills with dikes or absorbents.Isolate spill or leak area in all directions.
Methods for Cleaning Up: Clean up spills immediately and dispose of waste safely.Eliminate all ignition sources and ventilate area.Stop ignition source if safe to do so.Consider water spray to disperse vapors.Isolate area until gas has dispersed.Ventilate and gas test before entering.Take up liquid spill into absorbent material.Transfer material to a suitable container.Contact competent authorities after a spill.
Waste Disposal: Dispose of in accordance with regulations.Containers may be hazardous when empty.Do not flame cut, braze, or weld empty containers.

Reference to other sections
See Section 8 for exposure controls and personal protection and Section 13 for disposal considerations.

SECTION 7: Handling and storage

7.1 Precautions for safe handling
Precautions for Safe Handling: Do not handle until all safety precautions have been read and understood.Avoid contact with skin, eyes and clothing.Do not breathe gas, mist, spray, or vapors.Wash hands and other exposed areas before eating, drinking or smoking and when leaving work.Do not spray on open flame or other ignition source.
Additional Hazards: Do not pressurize, cut, or weld containers.Do not pierce or burn, even after use.
Hygiene Measures: Handle in accordance with good industrial hygiene and safety procedures.
Other Precautions: Keep out of reach of children.Follow label instructions.Vapors may collect in low lying areas.

7.2 Conditions for safe storage, including any incompatibilities
Technical Measures: Comply with applicable regulations.Proper grounding procedures should be followed.
Storage Conditions: Store in a dry, cool place.Keep only in original container in a cool, well-ventilated place away from ignition sources.Protect from sunlight.Do not expose to temperatures exceeding 50°C/122°F.Keep away from direct sunlight and incompatible materials.Store locked up.
Incompatible Materials: Strong oxidizing agents, aluminum.
Specific end use(s)
Glycol inhibitor

SECTION 8: Exposure controls/personal protection

8.2 Appropriate engineering controls
Emergency eye wash fountains and safety showers should be available.Ensure adequate ventilation.Use explosion-proof equipment.Proper grounding procedures to avoid static electricity should be followed.Use only outdoors or in well-ventilated area.Ensure all regulations are observed.Do not handle until all safety precautions have been understood.

8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection: Chemical safety goggles.
Skin protection: Wear protective gloves and clothing.
Respiratory protection: Use a NIOSH-approved Self-Containing Breathing Apparatus whenever exposure may exceed established Occupational Exposure Limits.

SECTION 9: Physical and chemical properties

Physical state	Liquid
Appearance	Clear liquid
Color	Colorless
Odor	No odor
Odor threshold	N/A
Melting point/freezing point	N/A
Boiling point or initial boiling point and range	106°C (223°F)
pH	9.0-11.0
Solubility	Soluble
Vapor pressure	0.1 mmHg at 68°F (20°C)
Density and/or relative density	1.54 at 59°F (15°C)

SECTION 10: Stability and reactivity

10.1 Reactivity: No data available.
10.2 Chemical stability: Stable under conditions of normal storage and use.
10.3 Possibility of hazardous reactions: Will not occur.
10.4 Conditions to avoid: None known.
10.5 Incompatible materials: Strong oxidizing agents, aluminum.
10.6 Hazardous decomposition products: Oxides of phosphorus and oxides of potassium.

SECTION 11: Toxicological information

Information on toxicological effects
Routes of Exposure: The most significant routes of overexposure for this product are by contact with the skin or eyes.
Skin corrosion/irritation: Exposure to skin may cause redness or irritation (Category 2).
Serious eye damage/irritation: Can cause serious eye irritation (Category 2A).
Respiratory or skin sensitization: Dusts may cause upper respiratory tract irritation.
Carcinogenicity: Ingredients within this product are not considered to be, nor suspected to be, cancer-causing agents.
STOT-single exposure: May cause respiratory irritation (Category 3 – Respiratory System).
Aspiration hazard: None.

SECTION 12: Ecological information

No specific data available on this product for toxicity, persistence, degradability, or bioaccumulative potential.

SECTION 13: Disposal considerations

Disposal methods
Product disposal: Dispose of contents/container in accordance with local, regional, national, and international regulations.Do not pierce or burn, even after use.
Sewage disposal: Avoid release into the environment.Keep out of sewers and waterways.
Other disposal recommendations: Container may remain hazardous when empty.Do not puncture or incinerate container.Product should be fully characterized prior to disposal (40 CFR 261).

SECTION 14: Transport information

DOT (US): UN Number: UN3266; Class: 8; Packing Group: III; Proper Shipping Name: Corrosive liquid, basic, inorganic, n.o.s. (Dipotassium Phosphate).Marine pollutant: No designated components.
IMDG: UN Number: UN3266; Class: 8; Packing Group: III; Proper Shipping Name: Corrosive liquid, basic, inorganic, n.o.s.
IATA: UN Number: UN3266; Class: 8; Packing Group: III; Proper Shipping Name: Corrosive liquid, basic, inorganic, n.o.s.

SECTION 15: Regulatory information

SARA 311/312 Hazards: Acute Health Hazard.
Toxic Substances Control Act (TSCA) Inventory: The components of this product are listed on the TSCA Inventory or are exempted from listing.

SECTION 16: Other information

N/A = Not applicable; N/D = Not determined

16.1 Further information/disclaimer: To the best of our knowledge, information contained herein is accurate.However there is no assumption of liability for the accuracy or completeness of the information contained herein.Final determination of suitability is the sole responsibility of the user.All materials may present unknown hazards and should be used with caution.Although certain hazards are described herein, we cannot guarantee that these are the only hazard which exists.The information was obtained from current and reliable sources;however, data is provided without warranty, regarding its correctness or accuracy.Since conditions of handling, storage and disposal are beyond the control of the manufacturer, the manufacturer will not be responsible for loss or injury.No warranty, expressed or inferred, shall be created or inferred by any statement in this SDS.Various government agencies may have specific regulations regarding this product which may not be covered by this SDS.The user is responsible for full compliance.

16.2 Preparation information: Prepared by: Jessica Wilson; Date prepared: 3/5/2026