XANTHATE SAFETY

SNF Mining leads the market in manufacturing excellence and safety.  Proper storage, handling, and usage of Xanthate are of paramount importance.  For this reason, SNF Mining personnel conduct on-site training on the safe handling of this potentially dangerous product.  The information provided here is no substitute for personal instruction and training in the safe use of Xanthate, rather the sole intention is to provide an overview of some of the information that may have been presented by SNF Mining personnel.  In order to ensure proper use of this product, contact SNF Mining today for your personal presentation and training on the safe use of Xanthate.

Xanthate should always be used in a safe manner.  This section covers some of the information contained in the xanthate safety course presented by SNF Mining.

At SNF Mining, we look forward to fulfilling all your mining reagent needs, and encourage you to use our products safely. Contact your representative today for more information on our products and services and to arrange your personalized safety training.

Contact SNF Marketing (marketing@snfhc.com) to arrange for a training session.



Xanthate is a hazardous substance, and precautions must be taken when transporting handling, and storing it. It may cause death, or acute or chronic damage to health if inhaled, swallowed or absorbed via the skin.

Component/CAS #: Potassium Amyl Xanthate / 2720-73-2
%: >90 ± 3
Symbol: Xn
Risk Phases: R:22-38

Component/CAS #: Sodium Hydroxide / 1310-73-2
%: >0 – 1
Symbol: C
Risk Phases: R:35

Pellet form – not decomposed or powder as from other suppliers
Yellow or Beige in color
Disagreeable smell
Completely soluble in water
pH: >12.0

Personal Protection – Always wear protective gear when working with Xanthates. Gear should include long sleeved clothing, safety goggles, a respirator with high-grade particulate matter filters, and gloves, boots and apron that are made of Neoprene, polyvinyl, butyl rubber or nitrile rubber, or Dupont Tyvek® suits.

It is critical to keep Xanthate pellets away from moisture, humidity and sparks during storage. It can also form flammable gases as it decomposes.

SNF Mining Xanthate is hermetically sealed, unlike other manufacturers’ products. Under optimum conditions, Xanthate remains stable for up to one year when stored sealed under cool and dry conditions. Avoid high temperatures, ignition sources, moisture, and strong acids and oxidizing agents. Carbon disulfide, isopropyl alcohol, and carbon monoxide are Hazardous substances that may form under fire conditions. Tank covers, openings and overflow vents should remain closed or should be vented to a treatment area. Precautions should be taken to avoid static electricity discharge. Storage areas should be monitored frequently for explosive gasses.

As Xanthate decomposes, the products it gives off include alcohols, carbon disulfide (CS2), and carbon monoxide.

In rats, the lethal dose is 1,000 – 2,000 mg/kg for a 10% solution. It can cause mild to severe irritation to the skin and eyes.

Case Study – In the following case study, exposure to Xanthate through skin contamination resulted in TTCA in the urine, and within 20 hours, some of the following symptoms were present: gastric burning, abdominal tightness, fainting, nausea, vomiting, fatigue, and headache.

Mt. ISA – Australia
• Skin Contamination
• TTCA in Urine
• > 20 hours – gastric burning, abdominal tightness, fainting , nausea, vomiting, fatigue, and headache

MIXING XANTHATE

PAX (Potassium Amyl Xanthate) + Water = CS2 + Alcohol Vapors
• 10 ppm
– Water then Xanthate
• > 60 ppm
– Xanthate followed by water

Always wear protective gear when working with Xanthates. Gear should include long sleeved clothing, safety goggles, a respirator with high-grade particulate matter filters, and gloves, boots and apron that are made of Neoprene, polyvinyl, butyl rubber or nitrile rubber, or Dupont Tyvek® suits.

When mixing Xanthates, adding water first results in a concentration of 10 parts per million above the solution. Adding Xanthate first will result in 60 parts per million, above the solution. It is recommended to add water first.

Physical Contact – Skin – If contact with the skin has occurred, remove contaminated clothing immediately and wash skin thoroughly with soap and lots of water.


Physical Contact – Eyes – If contact with eyes has been made, rinse eyes thoroughly with plenty of water for at least 15 minutes and consult a physician.


Inhalation – If Xanthate or carbon disulfide has been inhaled, move the victim to fresh air immediately.


Ingestion – If Xanthate has been ingested, do not induce vomiting. Seek medical attention immediately.

When fighting a fire involving Xanthates, wear full protective gear for the body and eyes, and use a NIOSH approved, positive pressure, self-contained respirator. Use carbon dioxide, dry chemical, or foam to extinguish. Avoid using water if dry xanthates nearby can get wet. Avoid contact with dust, mist, and liquids, and keep all personnel removed and upwind of fire.

Xanthate should be disposed of only in accordance with regulations. Do not contaminate any lakes, streams, ponds, groundwater or soil. Containers should be completely emptied and disposed of in accordance with regulations.

This product is regulated as a dangerous good as defined by the International Maritime Dangerous Goods code for marine transport.

The appropriate placard will display the identifying number UN 3342 for Xanthate. It will be red on the bottom half with the number “4,” identifying its hazard class, and as being spontaneously combustible. (UN 3342, Xanthates, 4.2, II, Spontaneously Combustible)

Components of this product are listed on the Toxic Substances Control Act inventory in the United Sates, the Domestic Substance List in Canada, and on the European Inventory of Existing Commercial Substances.

SARA 302: Contains no chemicals subject to 40 CFR 302 reporting.

SARA 311/312: Immediate (acute) health hazard, fire hazard, reactive.

SARA 313: Contains no chemicals subject to 40 CFR 313 reporting.

The National Fire Protection Agency’s Hommel diagram indicates a level 2 rating for the danger classification of Xanthates pertaining to flammability, health, and reactivity. Please take the time to familiarize yourself with the Hommel Danger Classifications to ensure your safety and the safety of others.

HMIS  visually illustrates the level of danger posed by any material in the areas of health, flammability, reactivity, and personal protection. Please familiarize yourself with it for the safety of all concerned when handling Xanthate or any chemical substance.