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Frequently Asked Questions


Spill King Absorbent™ is classified as an Amorphous Silica.

Virtually any known liquid or semi-liquid of any origin (except Hydrofluoric Acid), off any hard surface.

Hydrofluoric Acid has a reaction when exposed to Amorphous Silica and turns into a dangerous gas.

Spill King Absorbent™ encapsulates liquids on contact. The absorbed material actually becomes part of the Silica molecule.

  • Ignitable: A flash point of less than 140 degrees Fahrenheit. (60 degrees Celsius)
  • Corrosive: A pH of less than or equal to 2-0, or greater then or equal to 12.5, or corrodes steel at a rate greater then 6.35 mm per year at 55 degrees Celsius.
  • Reactive: Unstable, reacts violently with water; is sufficiently cyanide or sulfide bearing to produce toxic gas; is capable of detonations, or forms potentially explosive mixtures with water.
  • Toxic: If the material tests positive and above a certain concentration for 39 contaminants the EPA has listed in Federal regulations ( i.e. certain pesticides, benzene, heavy metals such as lead, mercury ) and halogenated organic substances such as pentrachloro phenol and trichloroethylene.

No, but it is considered a “nuisance dust” and avoiding any prolonged inhalation is recommended.

No, Federal Law prohibits hazardous wastes to be landfilled if absorbed in biodegradable materials.

Yes, Spill King Absorbent™ meets and exceeds the EPA’s final rule on “Hazardous Waste Management” Liquid in landfills; making it acceptable for disposal in landfills.

Yes, if the SDS (Safety Data Sheet) of the absorbed liquid permits. Spill King melts into small glass balls approximately 20% of its original volume at 2400 degrees Fahrenheit.

No, under normal use Spill King Absorbent™ does no harm to tile, cement, asphalt, carpeted floors.Spill King Absorbent™ is slightly abrasive, so some care should be taken if waxed or highly polished surfaces are spilled on, but normally there is no problem.

Spill King Absorbent™ becomes the absorbed material as far as disposal regulations are concerned. Disposal must be in accordance with the SDS of the absorbed product. Consult applicable Federal, State and local regulations for the liquid absorbed and dispose of properly.


Yes, but it is not designed for that purpose.

The opinion is that gas will probably evaporate so as not to become a disposal problem. Consult your local EPA office for regulations regarding it in your area.

Spill King Absorbent™ becomes the absorbed material and disposal must be in accordance with the SDS of the absorbed material. Consult applicable Federal, Sate, and local regulations.

In general, most all small, unintentional spills of petroleum products either new or used, that knowingly do not contain any hazardous waste materials may be landfilled. Examples include new and used motor oil, waste oil, transmission oil, grease, brake fluid, antifreeze, hydraulic fluid, some paint. If there is no “Free Liquid” present, these can be discarded into waste receptacles with out any harm to the environment and taken to any Class 1 landfill. However, due to the wide ranges, statewide, of the susceptibility of drinking water supplies to contamination, some local governments are very strict about what can and cannot be landfilled. Always check local ordinances.

Neither the EPA nor the Hazardous Waste Management Department has any management guideline specifically for sorbent materials. The typical management decision usually goes: Is it a solid waste, is it a hazardous waste (TCLP or process knowledge)? Yes: manage as hazardous waste. No: Dispose of in accordance with local rules.

Inorganic materials (such as clay based kitty litter) have a relatively low BTU value and contribute a large amount of ash following incineration. OSHA apparently has some concern with the breathable dust problem associated with less that careful use of this material ( the silica dust has been found to be a mild carcinogen).

 Many clay based and DE (Diatomaceous Earth) based absorbents contain “Crystalline” silica. The IARC lists (in Monogram – 42) “Crystalline” silica as a “probable” carcinogen, and identifies substances containing .I% or more “Crystalline” silica as “probable” carcinogens. Refer to IARC referenced in this Q&A presentation

Kitty Litter is inexpensive, but has a low absorption ratio (volume applied vs. volume absorbed). This is a factor in tipping fees at both landfills and WTE’s as well as in the valuable landfill space taken up by this material. It requires over 15 pounds of Kitty Liter to pick-up a quart of 10w40 motor oil, whereas it only takes one pound of Spill King Absorbent™ to do the same.

Spill King Absorbent™ is available for purchase from one or our many distributors located throughout the United States, or from  Spill King directly if their is not a distributor in your area.

Most large shipments are trucked using pallets, smaller quantities are shipped by UPS or other small package carriers.

Spill King Absorbent™ comes packaged in polyethylene plastic pails and re-used, easy to refill, UN coded drums for safe storage. Plain, lined bags are available for stocking and refilling the containers. Custom packaging and labeling is available upon request.