Raw Water Filtration, Industrial pigmentation, Foundry casting processes, Agricultural Fungicides and feed supplements, Specialized Milling, Base Minerals, African Pegmatite, High temperature Calcining, Ground Water Filtration, Milling and manufacturing industry, Water Filtration, Water Purification, Water Filter Media, Removal of water impurities, Agricultural Fungicide, Fruit and Vegetable sunscreen, Deciduous fungicide, Livestock feed supplements, Fungicide, Fungicide for Citrus and Vegetable farmers, Deciduous trees, Pigmentation, Glass colourant, Brick colourant, Cement colourant, Paint colourant, Colour Glazing,

Raw Water Filtration, Industrial pigmentation, Foundry casting processes, Agricultural Fungicides and feed supplements, Specialized Milling, Base Minerals, African Pegmatite, High temperature Calcining, Ground Water Filtration, Milling and manufacturing industry, Water Filtration, Water Purification, Water Filter Media, Removal of water impurities, Agricultural Fungicide,

MILLERS & PROCESSORS
OF BASE MINERALS


Mineral and Chemical Formulators to Industry and Agriculture.

Search :
Search
Ground Water filtration Agricultural Fungicide Industrial Pigmentation Foundry Casting Brick pigments

Demildex (copper Oxychloride)

DEMILDEX (copper Oxychloride) is a protectant fungicide/bactericide which prevents infection on plants.  Its mode of action is by interfering with the enzyme system of spores and mycelium, a process which is usually irreversible.  It forms a chemical barrier against fungal attack.

 

Only high quality ingredients go into DEMILDEX

All copper fungicides are manufactured using scrap copper.  Product sourced from copper scrap results in the presence of impurities including heavy metals.  The purity of the final product depends on the purity of scrap used.

DEMILDEX (copper Oxychloride) is produced using the highest quality copper scrap.  Copper joiners (major contributors of heavy metal impurities such as lead) are removed.  As a result, DEMILDEX(copper Oxychloride) averages a very low 73 ppm lead level, well below the International Standard of 250 ppm.

 

Less undesirable copper chloride in DEMILDEX

All copper oxychloride and copper hydroxide products follow the same production process whereby copper chloride is an intermediate compound.  The level of copper chloride in the final product is directly proportional to the reaction (manufacturing) time.

 

Why this is important!

Copper chloride is highly undesirable because of its phytotoxic effects on plants.  Symptoms include burning of the leaves or blemishes on the fruit.  Because of the extra long oxygenation time with DEMILDEX’s production process, this product has minimal (0.05% to 0.09%) copper chloride levels.  Other brands have tested copper chloride levels as high as 2%.  The very low copper chloride content in DEMILDEX (copper Oxychloride) is an important consideration for all crops, especially the more sensitive crops such as tomatoes.

 

Better coverage for superior disease control

Optimal particle size is a key factor in the outstanding performance of DEMILDEX (copper Oxychloride).  Particle size is a term which refers to the average diameter of the particles in the product.  Best performance comes from 1 to 2 micron particles.

The smaller the particle size the greater the number of particle – or active sites – per unit and hence the greater the fungicidal or bacterial activity.  Products with larger particle size have less particles and hence a smaller area of active (fungicidal) surface.

 

The particle size of DEMILDEX is very small with:

30% of particles below 0.5 micron

50% of particles below 1.58 micron

85% of particles below 3.0 micron

 

Comparing DEMILDEX with some other commonly used copper products:

Product

Mean particle size (micron)

DEMILDEX (copper Oxychloride)

1.58

Sample A

3.13

Sample B

3.77

Sample C

3.13

 

DEMILDEX sticks to the plant better

For fungicides, the tenacity coefficient is a measure of the product’s ability to stick to the plant and hence gives a strong guide to its resistance to weathering from rainfall or overhead irrigation.

Particle size (micron)

Tenacity Coefficient

2.63

0.449

5.53

0.370

 

The Tenacity Coefficient (and resistance to rainfall), increases with a decrease in particle size.  Ultra fine DEMILDEX (copper Oxychloride) sticks extremely well to the plant.

 

The facts on wettable powders versus soluble liquid formulations

The following information was supplied by Professor J.M. Kotzê from the University of Pretoria, South Africa.  Professor Kotzê is an international authority on copper compounds used as fungicides.  The comments help to clear the debate as to the fungicidal effectiveness of soluble copper products.

“The fungicidal/bacterial properties of copper oxychloride is based on copper (the active ingredient) which is slowly dissolved in moisture (rain or irrigation) on the plant leaf in the presence of weak organic acids.  As plant infections take place during rain, small amounts of copper are released on the plant surface to kill or inhibit germination of micro-organisms.

To sum up........

DEMILDEX forms a chemical barrier which protects the plant tissue from fungal attack.  It does not have any systemic fungicidal value.

 

Enquire Now                Download Data Sheet                    View Data Sheet



 
African Pegmatite paves the way to 2010 Soccer World Cup
01-19-2010
African Pegmatite paves the way to 2010 Soccer World Cup
Read more...

2009 JCCI/Nedbank Exporter of the year award
11-17-2009
African Pegmatite was invited to attend the “Exporter of the year award” hosted by Nedbank at Wanderers Club on the 13th November 2009.
Read more...

  View all the news articles

   
  Quick Contact Details
+27 16 362 0600
+27 16 362 1239
info@pegmatite.co.za
   
27 Van Der Bijl Street
PO Box 598
Meyerton 1960
Gauteng
South Africa
 
 



Home | About Us | News | Products | Milling | Downloads | Contact Us | Sitemap

© Copyright 2009 : African Pegmatite