Sodium Ethyl Xanthate (SEX) 90%

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Sodium Ethyl Xanthate (SEX) 90%

  • FOB Price
    $1,197.00 /ton
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  • Delivery time:

    Monday 13th March 2017 ?

    Kemcore ships within 14 day after receiving cleared payment.

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Sodium Ethyl Xanthate (SEX)/Flottec SEX/FloMin C 3200/AERO 325

  • Weak, highly selective collector

The most widely used is Sodium Isopropyl Xanthate in Copper flotation circuits

The longer the hydrocarbon chain on the xanthate molecule, the stronger the hydrophobicity is likely to be. Hence, sodium ethyl xanthate (SEX) with two carbon molecules in the chain, is the weakest xanthate and is used where selectivity is most important. It is applicable to the flotation of minerals that are already activated or partially hydrophobic and float easily, such as activated zinc, nickel and lead.  

Xanthates in mining

 Xanthates have been the workhorse of sulfide mineral flotation since the 1920’s (Harris 1989), and they represent the largest volume of any sulfide mineral collector. Xanthate collectors are salts consisting of a non-polar hydrocarbon group, which provides the hydrophobicity to a sulphide mineral, pointing outward from the mineral to the solution, and a polar group that adsorbs onto the sulphide mineral surface.



 RAW MATERIALS: are Carbon Disulfide, Caustic Soda (Sodium Hydroxide) or Potash (Potassium Hydroxide) and a determined alcohol, which provides it with collecting properties in flotation processes of metallic and polymetallic minerals.


The production of pure xanthates requires pure raw materials and then the reaction must also be driven to completion. This requires sophisticated process design and control of the manufacturing process which, in turn, influence the price and metallurgical efficiency of the product.



CAS number




EC number



Molecular formula


Molar mass

144.19 g mol


Pale yellow pellet


1.263 g/cm

Melting point

182 to 256 °C (360 to 493 °F; 455 to 529 K)

Boiling point


Solubility inwater

450 g/L (10 °C)

Acidity (pKa)


Basicity (pKb)




R15 R21 R22 R29 R36 R38


S3 S9 S35 S36 S37 S38 S39S16 S23 S51

Autoignition temperature

250 °C (482 °F; 523 K)


View FileSodium Ethyl Xanthate (SEX) 90% COA    Size: (1.27 MB)

Sodium Ethyl Xanthate (SEX) 90% COA

View FileXanthate SDS    Size: (1.24 MB)

Xanthate SDS

All of the xanthate products (PAX, SIBX, SIPX, SEX-ETC) are classified as dangerous goods, Class 4.2 spontaneously combustible.


Problems in the handling and use of xanthate have arise when:

• Impure raw materials were used and side reactions occur which do not produce Xanthate, but other unstable compounds.

• The reaction between raw materials (CS2, sodium hydroxide and the alcohol) is not driven to completion and significant amounts of the un-reacted materials are left in the product. Intermediate, unstable thio compounds are also created and may be left in the product.

• The product degrades into CS2 and alcohol, either after manufacture in the solid form or after dissolution before use. 

• Packaging, transport or storage results in contact of the product with air.



  • UN No: 3342
  • Transport Hazard Class: 4.2 Spontaneously Combustible
  • Packing Group: III
  • Proper Shipping Name or: XANTHATES


Safety and Handling:

Suggested PPE

  • Wear clothing that offers ankle to wrist coverage
  • Wear impervious gloves
  • Wear chemical goggles if a risk of splashing/spray exists
  • Wear respirator if risk of inhalation exists

Safe Practice

  • Use reagents in areas with adequate ventilation 

  • Do not breathe dust/vapour/mist/aerosol. 

  • Avoid contact with skin and eyes. 

  • In case of contact with eyes, rinse immediately with 
plenty of water and seek medical advice. 

  • Wear suitable protective clothing, gloves and eye/face protection 


Download our Sodium Ethyl Xanthate msds for more safety and handling information.


  • With thousands of suppliers competing for our business, Kemcore has proven to be the most reliable and consistent import/export company in China, offering quality chemicals at competitive prices. We strive to continue working with them.

    Macheng Macheng

    Senior Buyer

    KS Energy (Pty) Ltd

  • Kemcore’s greatest advantage is understanding our culture, values, and expectations for business transactions, quality, and delivery from the Asian market feeding into Africa. Our business started with trial orders of 20 tons to the current 350 tons per month.

    Mike Peto

    Managing Director

    Sesani EPCM

  • Our import volume of chemicals and other mining accessories stands at $5.65mil/yr. We have significantly increased our market share due to the competitiveness & consistency in quality.

    Menfred Mukumba (MCIPS)

    Supply Chain Manager

    Intrachem Pvt Ltd

  • Kemcore continues to be  instrumental in procuring a complete suite of reagents for  our gold/copper flotation plant . I do not hesitate to recommend Kemcore services for Xanthate, DTP's plant reagent supply, especially when procuring out of China.

    Brienie Dzumbunu

    Metallurgical Superintendent

    Pan African Mining

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