Calcium Magnesium Acetate – The LEEDS compliant environmentally friendly deicer.

We stock CMA product from both domestic and international sources (to ensure availability) and have it ready to ship or pick up at our facility in Boston, MA and Baltimore, MD warehouses.   Our Cryotech CMA ® Solid Commercial Deicer is 96% pure hydrated Calcium Magnesium Acetate. To receive the maximum corrosion protection benefit from CMA deicer, it is important to use only pure CMA and be fooled by a mixture of CMA and chlorides.   if you are unsure about the amount of CMA and whether or not it complies with your needs, demand a certified analysis of ingredients on any deicing product you purchase and check labels and product data sheets for details.   Often the answers can lie in what you not being told.

What are the main benefits of CMA, calcium magnesium acetate?

  • Low Corrosion – Unlike calcium chloride, Calcium Magnesium Acetate (CMA) is not corrosive to ferrous metals and most common materials used in buildings and structures.
  • Safe for Concrete – CMA is the safest deicer for concrete
  • Safe for Children & Pets – It does not require protective gloves to handle and does not harm skin
  • Environmentally Safe – CMA biodegrades and CO2 and H2O, has very low toxicity levels and is even safe for vegetation
  • Residual Effect – Requires fewer applications and lasts long, resists freezing

Why was CMA developed?

There has always been concern for damage to the environment and to structures caused by chlorides deicers. In the 1970’s, the Federal Highway Administration (FHWA) identified calcium magnesium acetate as the only low-corrosion chemical alternative to road salt that also helped to minimize adverse consequences of use in the environment.  No product is without some side effects, but CMA’s are very low overall.

Does CMA affect the environment?

When absorbed into the soil, CMA’s calcium and magnesium components benefit the soil structure. The acetate portion of CMA biodegrades naturally into Carbon Dioxide (CO2) and Water.

Does CMA cause corrosion on roads, bridges, parking garages, etc?

No significant corrosion of steel, aluminum, or concrete has been found in repeated tests with CMA – sponsored by the FHWA, states, and private researchers.  However, there is a unique concrete with high magnesium (sorel cement) and there is high mag dolomitic based concrete that does break down with any form of magnesium deicer chemistry.  This high dolomite concrete is limited to a small region of Iowa only in our experience.  Calcium Magnesium Acetate (CMA) can be safely used on bridges, overpasses and approaches.

What are the environmental impact differences between deicing with sodium chloride based deicers (salt) and deicing with CMA?

Environmental Impact Calcium Magnesium Acetate Chloride based Deicers
Soils Biodegradable in soil

No adverse effect on soil compaction and strength

Increases soil permeability

Chlorides may accumulate in soil

Breaks down soil structure, increases erosion

Causes soil compaction, which decreases permeability

Vegetation Little or no adverse effect

May help to stimulate plant growth

Acetate ion is the most abundant organic acid metabolite found in nature

Osmotic stress and soil compaction harm root systems

Spray causes foliage dehydration damage

Many plant species are sale sensitive

Groundwater Poor mobility in soil, unlikely to reach groundwater

Calcium and Magnesium increases water hardness

Mobile Sodium and Chlorine ions readily reach and pollute groundwater

Increases Sodium and Chlorine concentrations in potable water and may be problematic for people with hypertension.

Surface Water Potential for oxygen depletion through biological oxygen demand (BOD) at concentrations greater than 100 ppm in closed systems

Decomposes in 5 days at 20°C, 10 days at 10°C, 100 days at 2°C.

Will not stimulate algae growth

Causes density stratification in ponds and lakes, which can prevent re-oxygenation

Increases runoff of heavy metals and nutrients through increased erosion

Dry Acetates

APPROVED FOR USE AT AIRPORTS AND COMMERCIAL FACILITIES
SPEC: SOLUTIONS NAAC®: Sodium Acetate Solid Runway Deicer

BENEFITS

Safe for runways: meets FAA approved specifications
Exothermic: gives off heat as it dissolves, melting ice faster than common deicers
Faster and better: works fast like calcium chloride, without chloride-induced corrosion
Staying power: works longer, requiring fewer applications
Easy to apply: applied with the same equipment as urea
Safe for the environment: non-persistent, biodegradable
Manufactured from pure materials, NAAC does not track like common deicers

PERFORMANCE

Contains no chlorides
Excellent melting properties
Works faster than urea and sodium chloride
Is active at lower temperatures – 0°F (-18°C)
Requires less material to achieve similar effectiveness

APPLICATION

Deicing – apply in uniform pattern:
Near 32°F (0°C) on thin ice = 3-5 lbs./1000ft2 (15-25 g/m2)
Less than 10°F (-12°C) on 1 inch (2.5 cm) ice = 10-25 lbs./1000 ft2 (50-75 g/m2)
Re-apply when new accumulation shows first tendency to bond
Plow once bond is broken
Prewetting – airports may apply potassium acetate to NAAC at spreader outlet at a rate of 10% by weight

ENVIRONMENT

Lower BOD than urea
Biodegrades at low temperatures
Low toxicity to fish and mammals

HANDLING

Store in original container
Avoid excessive moisture which may cause caking
Excessive handling may cause dustiness

COMPOSITION

Sodium acetate (NaAc)
97% minimum by weight, anhydrous sodium acetate with less than 1% corrosion inhibitors

PARTICLE SIZE

Sieve /  % Passing
4  / 90
14 / 10

SHAPE

Spherical pellet

BULK DENSITY

50 lbs./ft3 to 54 lbs./ft3
(0.8 g/cm3 to 0.86 g/cm3)

TYPICAL pH

8-10.5 in a 10% solution

PACKAGE SIZE

25 kg (55 Ib.) paper bags
1000 kg (1 metric ton – 2205 Ib.) Super Sacks

ICE MELTING TEST

We welcome distributor inquiries. Make Meltsnow.com your partner in anti-icing and ice control by contacting us today at 508.520.3900

For more information

Product Specifications: Solutions NAAC® | Sodium Acetate is available in PDF form for distributing and printing:

Solutions NAAC® | Sodium Acetate (PDF)

Chemical Solutions – NAAC Runway Fact Sheet (PDF)

Chemical Solutions – CMA Fact Sheet (PDF)

Chemical Solutions – CMA Mixing Guide (PDF)