H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Ti Pb Bi Po At Rn
Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Uuu Uub

B9

B9
is a sulfur-containing chelator, or "claw," that is uniquely suited to precipitate arsenic, cadmium, copper, iron, lead, mercury, selenium, and zinc from a variety of challenging industrial and environmental scenarios. B9 binds these elements strongly through the sulfurs in an essentially irreversible fashion. In scientific journals, B9 is often referred to as 1,3-benzenediamidoethanethiol, BDET, or BDTH2.
Arsenic [As]
occurs naturally in groundwater due to mineral weathering and is associated with an increased incidence of skin, lung and bladder cancers when consumed for prolonged periods. Field tests indicate that B9 can reduce the amount of arsenic in affected well water from 220 ppb (an amount 22 times the EPA and WHO exposure limits for safe human consumption) to less than 5 ppb.
Cadmium [Cd]
results mainly as a by product of zinc ore processing but finds use in nickel-cadmium battery and cadmium-tellurium solar panel production. Humans are exposed to highly toxic cadmium and cadmium compounds through cigarette smoke, fossil fuel combustion, and contaminated food sources. Inhalation or ingestion of cadmium compounds can lead to many types of cancer, irreversible kidney damage, and softening of the bones. B9 decreases cadmium concentrations from 274 ppb to below detectable limits (less than 5 ppb).
Copper [Cu]
is used extensively in architecture, automotive manufacturing, electrical applications, plumbing, and other industries. Copper binds preferentially to B9, even in the presence of additional strong chelating compounds, such as EDTA, and strong complexing agents like sodium cyanide.
Iron [Fe]
is the fourth most abundant element in the earth's crust and is extracted from ores, primarily for use in steelmaking. Iron may enter the water supply directly from the soil, from mining and industrial wastewater, or from water pipes. It may cause staining of laundry, dishes, glassware, and household fixtures when the level exceeds 0.3 ppm. B9 decreases iron levels by 99.3% in mixed metal wastes.
Lead [Pb]
was once used in house paint, gasoline, and plumbing fixtures but most commonly today in the production of automotive and industrial lead-acid batteries. Soil and water may be contaminated with lead from manufacturing wastewater, leaks from underground leaded gasoline storage tanks, or water pipes. Human ingestion of lead-contaminated water, soil, or paint can cause nerve damage, brain disorders, and blood diseases. B9 captures greater than 99.7% of lead from sources with initial concentrations ranging as high as 50 ppm.
Mercury [Hg]
exposure originates through both natural and man-made processes, mainly as Hg(II) and elemental Hg(0). In the environment, mercury can become methylated and bioaccumulate in the food chain, leading to human methylmercury poisoning from consuming large, predatory fish such as tuna and swordfish. B9 scavenges mercury from water, reducing amounts to less than five parts per trillion (ppt).
Selenium [Se]
occurs naturally in selenium-rich soils and is produced from the mining and smelting of sulfide ores. Selenium finds use in glass and ceramic manufacturing as well as electronics and photography. Cases of selenium toxicity, defined as the ingestion of greater than 400 micrograms Se daily, have been reported in humans consuming vegetables grown in extremely selenium-rich soils. Preliminary tests have shown that B9 can remove 96% of selenium from a 20 ppm solution.
Zinc [Zn]
is native to sulfide ores, finds use in galvanizing steel, and is an ingredient in some over-the-counter cold medications and nasal sprays. Acute zinc toxicity has been caused by consumption of food and beverages stored in galvanized containers and from the use of nasal sprays containing zinc, resulting in gastrointestinal distress and loss of sense of smell, respectively. B9 binds zinc, even in the presence of high concentrations of other metal ions in industrial wastewaters.

Click the highlighted elements to get more information about B9 and how it interacts with each one.

The B9 (Benign) compound mitigates and remediates problem elements in environmental and industrial settings.

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