Ethylene Glycol 30/70

Name: Ethylene Glycol 30/70
Brand: Alliance Chemical
SKU: HAL- BKX- SNT
Availability: InStock

Description
Product Documents
Chemical Profile

Product Overview

Ethylene Glycol 30/70 is a precise solution of 30% ethylene glycol (C₂H₆O₂) and 70% water, manufactured to standards. Also known as Monoethylene Glycol (MEG) or industrial antifreeze, this concentration is optimized for heat transfer efficiency in closed-loop systems where freeze protection and thermal stability are critical. The solution appears as a clear, colorless liquid and is pre-mixed to ensure accurate concentration without the need for on-site dilution.

This formulation is widely utilized in HVAC systems, industrial chillers, and chemical processing equipment. Its thermal properties allow for effective heat removal while the high purity profile minimizes the introduction of contaminants like chlorides or heavy metals into sensitive piping systems. Ethylene Glycol 30/70 maintains fluidity at lower temperatures compared to water alone, making it essential for equipment exposed to varying environmental conditions.

Key Properties

Chemical Formula: C₂H₆O₂ (Glycol component)
Appearance: Clear, colorless liquid
Specific Gravity: 1.04–1.06 (20°C)
Boiling Point: 197–198°C (Pure component basis)
Chloride (Cl⁻): ≤ 20 ppm
Sulfate (SO₄²⁻): ≤ 50 ppm
Iron (Fe): ≤ 0.5 ppm
Heavy Metals (as Pb): ≤ 0.5 ppm
Water Content: Balance (approx. 70%)

Common Applications

HVAC & Chiller Systems: Functions as a primary heat transfer fluid in commercial and industrial air conditioning loops.
Industrial Antifreeze: Provides freeze protection for closed-loop water systems in cold environments.
Chemical Processing: utilized as a solvent and thermal fluid in reactor jackets and process cooling lines.
Laboratory Research: Acts as a consistent, high-purity thermal medium for benchtop heating and cooling baths.
Manufacturing: Used as a dehydrating agent or solvent in the production of resins and plastics.

Safety Precautions

Store Ethylene Glycol 30/70 in a cool, dry area away from direct sunlight. Ensure storage containers are compatible materials such as HDPE or stainless steel. This product acts as a central nervous system depressant if ingested; do not use in food, beverage, or potable water systems. Wear appropriate Personal Protective Equipment (PPE), including chemical-resistant gloves and safety goggles, during handling to prevent skin and eye contact. Refer to the Safety Data Sheet (SDS) for detailed emergency and disposal procedures.

Benefits

Pre-Mixed Convenience – 30/70 ratio ensures consistent concentration and eliminates mixing errors on-site.
Thermal Efficiency – Balances heat capacity with freeze protection for optimal system performance.
High Purity – specifications limit ionic impurities that can accelerate corrosion.

Related Products

Property	Value
Molecular Weight	62.07 g/mol
Formula	C2H6O2
Assay	30%%
Grade	Technical
Flash Point	111
Form	Liquid
Solubility	Fully miscible with water, moderate organic sol...
Appearance	Colorless to pale yellow translucent liquid
Melting Point	-13 °C
Boiling Point	197 °C
Industry	Industrial, HVAC, Manufacturing, Cooling Systems, Research

Frequently Asked Questions About Ethylene Glycol 30/70

What is Ethylene Glycol 30/70 and what is its chemical formula?

Ethylene Glycol 30/70 is a chemical compound with the molecular formula C2H6O2, with a molecular weight of 62.07 g/mol. Alliance Chemical supplies Ethylene Glycol 30/70 in Technical grade for laboratory, industrial, and commercial applications.

What are the physical properties of Ethylene Glycol 30/70?

According to the NIOSH Pocket Guide to Chemical Hazards, Ethylene Glycol 30/70 is supplied as a colorless to pale yellow translucent liquid. It has a melting point of -13°C, a boiling point of 197°C, a flash point of 111. Solubility: Fully miscible with water, moderate organic sol....

What grade and purity of Ethylene Glycol 30/70 does Alliance Chemical offer?

Alliance Chemical offers Ethylene Glycol 30/70 in Technical grade with a purity assay of 30%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.

What are common industrial applications of Ethylene Glycol 30/70?

Ethylene Glycol 30/70 serves a wide range of sectors, including Industrial, HVAC, Manufacturing, Cooling Systems, and Research.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.

What PPE is required when handling Ethylene Glycol 30/70?

OSHA-mandated PPE per 29 CFR 1910.132-138:Nitrile gloves (8+ mil), safety goggles, flame-resistant clothing, grounded footwear, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.

What are the storage requirements for Ethylene Glycol 30/70?

Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:oxidizers, ignition sources. Maximum storage:2-3 years unopened.

What is the emergency spill procedure for Ethylene Glycol 30/70?

Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Absorb with vermiculite or commercial spill kits. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.

What is the DOT shipping classification for Ethylene Glycol 30/70?

DOT Classification per 49 CFR 172.101:UN1993 (Flammable Liquid, N.O.S.), Hazard Class3 (Flammable), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.

How must Ethylene Glycol 30/70 waste be disposed?

Disposal per RCRA (40 CFR 261-265):Characteristic waste D001 (Ignitable, flash point <60°C). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.

Does Alliance Chemical provide an SDS and COA for Ethylene Glycol 30/70?

Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Ethylene Glycol 30/70. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.