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HongKong, China, Czech Republic
Mining Explosives, Grinding Media, Flotation Reagents, Leaching Chemicals, Refining, Water Treatment
11-50 Employees
US$5 Million - US$10 Million
2007
11213+ Customers
75 Core Suppliers
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CALL US - (+825) 3478 7314
(+825)9446 7494
OPERATION HOURS
9AM TO 6PM DAILYSynonyms : LEAD NITRATE,Lead dinitrate,Lead(II) nitrate,Plumbous nitrate,Lead(2+) nitrate,Nitrate de plomb [French],Lead nitrate (Pb(NO3)2),Lead(II) nitrate (1:2),Nitric acid, lead(2+) salt
Recommended use: Accelerator in gold cyanidation.
Flotation -Activator for stibnite (Sb2S3) in antimony ores.
Advantages of Lead Nitrate
**Lead nitrate is used to activate sphalerite, similar to Copper Sulphate.
**Lead Nitrate is also the most widely used chemical as an accelerator in cynadation of precious metals.
**Adding lead nitrate to the pre-leach circuit increases gold recovery.
** In Several studies it has been presented that addition of lead solution for example lead nitrate, Pb(NO3)2, is able to enhance gold leaching kinetics.
Deschênes and Prud’homme (1997) have presented that lead nitrate can act in different ways.
**They observed that lead nitrate can activate the surface of a passivated gold particle, prevent a passivation film formation on the gold surface and also precipitate the soluble sulphides.
*** Kondos et al. (1995) have presented that sulphide mineral, which is distributed in the solution, will be precipitated by excess lead as PbS. Lead ion may also react with gold sulfide film making the passive gold particle to become active again in the absence of sulfide formation
*** effect of lead ions in the form of lead nitrate, lead sulfide and lead sulfite, which are reacted with gold and accelerate gold dissolution
*** sulfide ion concentration is decreased fast with the addition of lead ions.
*** It may enhance gold leaching from ores by continually removing the leached species from the solution, redistributing the solid/liquid equilibrium and favoring further gold dissolution.
*** addition of lead nitrate does not affect cyanide consumption.
*** addition of lead nitrate together with oxygen provides the most effective gold extraction.
***** also presented that higher concentrations of lead nitrate can reduce gold extraction****
Lead (II) nitrate is prepared by mixing 12.5 kg into 200 litres drum of water. Lead nitrate activate the surface of a passivated gold particle and prevent a passivation film formation by sulphide minerals on the gold surface by forming gold-lead alloys on the surface of gold. Sulphide minerals or layers are precipitated by excess lead as PbS and through the reaction of Lead ions with gold sulphide films, and these make the passive gold particle to become active again in the absence of sulfide formation and these accelerate the dissolution of gold.
Dosage
The dosage of Lead (II) nitrate /Pb(NO4) goes up to 200g/t. Above 200g/t the dissolution rate of gold reduced due to the formation of Pb(OH) which forms a passive layer on gold surface. A dosage of 250ml/min is also used.
pH range
The PH ranges from 8.5 to 9.0. Lead nitrate works for Gold ores which contains sulphides such as pyrite ores.
Lead nitrate is also used in other applications such as:
Molecular Formula: :N2O6Pb
Cas Number: 10099-74-8
Physical Properties
Appearance: Colorless or white crystalline
Form, crystalline or granular solid/
Odor: Odorless
Boiling point: N/A
Melting/freezing point: :470 °C
Specific gravity: 4.53
Flash point: N/A
pH: 3.0-4.0 (20% aq. solution)
 Lead Nitrate 99% COA Size: (1.26 MB) |
|
| Lead Nitrate 99% SDS Size: (1.21 MB) |
Lead Nitrate 99% SDS |
1.TRANSPORT INFORMATION
2- STORAGE & HANDLING & HANDLING
Store in a cool, dry, well ventilated place and out of direct sunlight. Store away from foodstuffs. Store away from incompatible materials . Keep containers closed when not in use - check regularly for spills.
3- PACKING
|
Packing type |
Tons/FCL |
|
25kg PP/PE bags |
24 tons/FCL |
4.Environmental impact
Environmental considerations - Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Remove trapped material with suction hoses. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
5. Download our Lead nitrate msds for more safety and handling information.
Macheng Macheng
Senior Buyer
KS Energy (Pty) Ltd
Mike Peto
Managing Director
Sesani EPCM
Menfred Mukumba (MCIPS)
Supply Chain Manager
Intrachem Pvt Ltd
Brienie Dzumbunu
Metallurgical Superintendent
Pan African Mining
We don't work only with the giants of the mining industry. Our clients include many small-to-medium-sized businesses.
1-3 Pedder Street Level 10, Central Building Hong Kong, China
+852 3478 7314
[email protected]
07:30 and 19:00 
