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Product Description
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THIS PAGE WAS UPDATED ON JULY 22
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** What is Perlite?
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Perlite is not a trade name but a generic term for naturally occurring siliceous volcanic rock. The distinguishing feature which sets perlite apart from other volcanic glasses is that when heated to a suitable point in its softening range, it expands from four to twenty times its original volume.
This expansion process is due to the presence of two to six percent combined water in the crude perlite rock. When quickly heated to above 1600 F (870 C) the crude rock pops in a manner similar to popcorn as the combined water vaporizes and creates countless tiny bubbles in the softened glassy particles. It is these tiny glass-sealed bubbles which account for the amazing lightweight and other exceptional physical properties of expanded perlite.
The expansion process also creates one of perlite's most distinguishing characteristics: its white color. While the crude perlite rock may range from transparent to light gray to glossy black, the color of expanded perlite ranges from snowy white to grayish white.
Expanded perlite can be manufactured to weigh from 2 lbs/ft3 (32 kg/m3) to 15 lb/ft3 (240 kg/m3) making it adaptable for numerous uses, including filtration, horticultural applications, insulation, inert carriers and a multitude of filler applications.
** Industrial Applications for Perlite
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Industrial applications for perlite are the most diverse, ranging from high performance fillers for plastics to cements for petroleum, water and geothermal wells. Other applications include its use as a filter media for pharmaceuticals, food products, chemicals and water for municipal systems and swimming pools.
Additional applications include its use as an abrasive in soaps, cleaners and polishes and a variety of foundry applications utilizing perlite’s insulating properties and high heat resistance. This same heat resistant property is taken advantage of when perlite is used in the manufacture of refractory bricks, mortars, and pipe insulation.
We attempt to serve you in no time in any required proper packages. You may receive your order in any chosen port in the world.
Product Feature
** TYPICAL CHEMICAL ANALYSIS
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[ Soltan Ahmadlue quarry Analysis ]---{Shahriar quarry Analysis}
SiO2 : [ 71.51 ~ 73 ] { 70.12 ~ 78.96 }
Al2O3: [ 12.1 ~ 13.5 ] { 9.12 ~ 18.36 }
Fe2O3: [ 0.91 ] { 0.82 ~ 1.74 }
TiO2: [ 0.19 ] { 0.14 ~ 0.161 }
CaO: [ 0.81 ] { 0.75 ~ 2.45 }
MgO: [ 0.24 ] { 0.12 ~ 0.14 }
Na2O: [ 2.74 ] { 1.41 ~ 2.21 }
K2O: [ 4.4 ] { 5.43 ~ 6.02 }
H2o: [ 4.83 ~ 5.02 ]
W.C: [ - ] { 2.8 ~ 7.10 }
** TYPICAL PHYSICAL CHARASTERICTICS
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Color: White
Specific Gravity: 80~200 Kg/M3
pH: neutral
First cyclone density: 0.19~0.23
2nd cyclone density: 0.81~0.1
3rd cyclon density: 0.088~0.082 Product Specification/Models
** TYPICAL CHEMICAL ANALYSIS
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SiO2 : 72.60
Al2O3: 14.00
Fe2O3: 1.22
TiO2: 0.20
CaO: 1.21
MgO: 0.52
Na2O: 3.01
K2O: 2.91
SO3: 0.01
P2O5: 0.047
MnO: 0.064
** TYPICAL PHYSICAL CHARASTERICTICS
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Color: White
G.E. Brightness %: 70-80
Refractive Index: 1.47
Specific Gravity: 2.2-2.4
Apparent Density: 2.5-10.5 lb/ft3 or 40-170 KG/M3
Wet Density: 5-20 lb/ft3 or 80-320 kg/m3
pH: neutral
Water Adsorption: 200-600 % by weight
Oil Adsorption: 50-100 grms oil/gms of perlite
Softening Point: 1800 F or 980 C
Moisture %: lessthan 1.0 %
Ignition Loss (3 hr 1700 F): 1.5% maximum
Particle Size (mesh range): 20-200 U.S. Standard
Application
** PERLITE FOR USE IN WELL CEMENT
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A lubricating mud consisting of water, clay, pozzolans and other materials is used to facili-tate drilling of oil, gas, water and geothermal wells. This lubricating mud is forced out through the bottom of the drill casing and the space between the well bore and the casing is cemented to prevent the intrusion of corrosive waters and other contaminants into the well.
* Why Perlite Cement?
Well cementing materials such as diatomaceous earth, pozzolan, fly ash and glass beads do not have the lightweight properties exhibited by perlite concrete unless concentra-tions of bentonite or gel, as it is referred to, are added to the cement. A disadvantage of large concentrations of gel is that they are not com-patible with heat. Because perlite cement is not affected by heat and little material is lost in cementing operations due to its ability to bridge voids, perlite cement provides a more effective and less costly well cement. The dry weight of perlite is only 8 lb/ft3 (128 kg/M3) as opposed to 25-100 lb/ft3 (400-1600 kg/M3) - the dry weight of the other materials.
*ADVANTAGES OF USING PERLITE WELL CEMENT
Lighter density
Aids in bridging
Heat compatible
Lower costs
Insulating qualities
* PERLITE AS AN ADSORBENT
Expanded perlite can be used to control and clean up liquid spills. The perlite may also be used to provide rapid deodorizing and dehydration of animal waste liquids. In these applications, the perlite may be used in granular form or compressed into pellets of the desired size and shape. Perlite also is suggested as an adsorbent media in enclosed containers for the disposal of liquid toxic waste substances.
By activating the expanded perlite with hydrochloric acid and/or sulfuric acid the material can be used as a purifying agent for waste and process waters.
* PERLITE AS A CARRIER
Expanded perlite is recommended as a carrier for pesticides, feed concentrates, herbicides, and other similar applications.
As a carrier for feed concentrates, perlite will readily adsorb the concentrate while remaining free flowing (anti caking), and chemically resistant to microbiological degradation. The perlite also permits quick liquid movement between the carrier surface and the recipient of the feed concentrate.
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* EXPANDED PERLITE USE IN HORTICULTURE
In horticultural applications, perlite is used throughout the world as a component of soilless growing mixes where it provides aeration and optimum moisture retention for superior plant growth. For rooting cuttings, 100% perlite is used. Studies have shown that outstanding yields are achieved with perlite hydroponic systems.
Other benefits of horticultural perlite are its neutral pH and the fact that it is sterile and weed-free. In addition, its light weight makes it ideal for use in container growing.
Other horticultural applications for perlite are as a carrier for fertilizer, herbicides and pesticides and for pelletizing seed. Horticultural perlite is as useful to the home gardener as it is to the commercial grower. It is used with equal success in greenhouse growing, landscaping applications and in the home in house plants.
For information about specific tests and uses of perlite, please refer to the Perlite Plant Guides
** STANDARD GRADATIONS OF HORTICULTURAL PERLITE
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For many years, horticultural perlite was understood to mean relatively large and often screened material. Usually it was used to provide aeration and drainage, and fine and medium grades were usually avoided.
In newer hydroponic applications, coarse and screened perlites were initially used and, again there was little confusion about what size or type of perlite was appropriate.
Beginning in the late 1980's and early 1990's, however, the grades of perlite being used and tested began to change. David Hall and others began working with 100% perlite media where the size and type of perlite being used was much smaller and was not screened. New horticultural studies by Hall and others began referring to fine and medium grades of perlite. Perlite Institute reports from The Netherlands in March and December of 1993, and work in hydroponics from Israel to England began referring to medium and fine grades of perlite being, and reports of turf and agricultural applications in India indicated finer grades were used. Eventually at meetings of the Perlite Institute and particularly during its Horticultural Committee meetings, there was confusion about what sizes and grades of perlite were being used and discussed in the many horticultural and agricultural uses of perlite, and in response a basic grading systems was developed.
Generally everyone in the perlite industry seemed to understand the basic parameters of "fine", "medium", and "coarse." Fines are those grades traditionally used in cryogenic insulation and fine plasters, medium grades have been used for plaster and concrete aggregates, and coarse grades are the two or three coarsest grades available from any perlite mining operation. To more carefully define these three grades, most studies have come up with sieve sizes or basic parameters, while others have just referred to "fine, medium, or coarse" grades in the hope that everyone will understand.
To avoid future problems, and misunderstandings, the Horticultural Committee of the Perlite Institute at the 1994 Mid-Year Meeting in Charleston, South Carolina approved a very basic specification for use within the perlite industry and others.
* Horticultural Perlite For Commercial Growers
A very basic , introductory brochure on some of the uses of perlite.
* Perlite for Use as a Substitute for Methyl Bromide
Worldwide, methyl bromide is used primarily as a soil fumigant to eliminate soilborne pathogens and to control weeds. Since methyl bromide will no longer be available to U.S. growers after 2005, scientists are persistently seeking alternatives to this chemical that has been so widely used for decades.
* Hydroponics:
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Hydroponic Growing in Perlite
Growing Hydroponic Crops Using Perlite
Role of Perlite in Hydroponic Culture
Growing Orchids in Perlite
Hydroponic Culture of Strawberries in Perlite
Tomato and Cucumber Production
Growing Melons in Perlite
Hydroponics and Hydroponic Growing
* Potting Soils & Container Growing:
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Will Perlite Beat Peat
PerliteGradation and Peat/Perlite Mixtures
Perlite vs. Polystyrene in Potting Mixes
Comparative Growth - Perlite vs. Polystyrene
Container Growing
Using Perlite in Potted Plants
Indoor Gardening With Perlite
The Concern Over Fluorides
Potting Soil and Container Growing
* Outdoor Gardening & Landscaping:
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Perlite Solves Compaction Problem at Stadium
Composting With Perlite
Horticultural Perlite for Outdoor Gardening
Fine Perlite in Commercial Planters & Containers
Problem Solver for Outdoor Gardening
Using Perlite in Residential Lawns
Expanded Perlite for Turf and Landscaping
Perlite in Turf Management
Golf Green Construction
Outdoor Gardening and Landscaping
100% Fine Perlite, Sod, Planters, Containers
Renovating Golf Greens with Horticulture Perlite
Cultivation of Spruce Seedlings
Effective Watering with Horticultural Perlite
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Perlite
