Boric Acid - Eti Maden

1.
Product Data Sheet
ETİ MADEN İŞLETMELERİ
Boric Acid
H3BO3 - Boric Acid
CAS Number: 10043-35-3
Technical Grade: Granular and Powder
Packaging: 25 kg, 50 kg, 1 ton
(with or without pallet)
Boric acid, also called boracic acid or orthoboric acid,
is a weak acid of boron and its chemical formula is
H3BO3 (sometimes written B(OH)3), and exists in
the form of white powder that dissolves in water.
Boric is obtained from the reaction of colemanite
and sulphuric acid or borax and a mineral acid, such
as hydrochloric acid.
Some Applications and Benefits
Fiberglass and Glass
Boric acid is used in the manufacture of special type of fiberglass ( furnace glass, laboratory
glass materials ex.). It prevents devitrification in glass production. It increases durability
property of glass against heat, chemicals, and mechanical effects. Boric acid is used in the
production of one-filament fiberglass (textile type fiberglass). Textile type fiberglass is used in
strengthening of plastics of many applications such as industrial pipes to computer cards.
It increases fiberisation in insulation and strengthening fiberglass by decreasing
viscosity. It controls featly the relationship between temperature, viscosity and fiberisation.
Boron also reduces the tendency of crystallization and increases the strength of the fibers and
resistance against moisture. Boric acid creates fairly powerful viscosity effect. The
comprise of fiberglass could change according to produced fiber type. ‘ E-glass’ which has the low alkaline property is the most widely consumed type of fiberglass. Because of its low
fragility property of E-glass , it comprises of nearly 90% of fiberglass consumption worldwide.
Eti Maden İşletmeleri Genel Müdürlüğü
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ANKARA / TURKEY
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2.
Meanwhile, 5-12 % boron oxide (B2O3) is used to produce many other glass types such as
standard and borosilicate glasses.
Ceramic
Boric acid has importance because of its binder property at main composition of ceramic
glazes. In the conclusion of adding of boric acid to compound, melting and adhesion occur at
lower temperature. It increases refraction and abrasion resistance against to physical impacts
in ceramics products by increasing mechanical and chemical resistance, it strengths resistance
in chemical environment and at the same time it creates environment for encoloring additives.
Detergent
Boric acid, a boron source, is used in different areas such as disinfectant and bleaching agent.
It could add to soap and detergents because of having water softening and disinfectant
properties. It produces the property of decreasing washing time and temperature.
Agriculture
Boron is an essential nutrient for plant growth. It has essential role in a plants reproductive
cycle, controlling flowering, pollen production, and seed development. Boric acid can be used
for soils having low amount of boron as alone or mixed with usual fertilizers. It is also used as
raw material to produce Disodium Octaborate Tetrahydrate which is known as boron fertilizer.
Furthermore, it is used in production of agricultural pesticide that provides clearing out of
undesirable herbs.
Nuclear Energy
Boric acid is used in nuclear power plants as a neutron poison to slow down the rate at which
fission is occurring. Fission chain reactions are generally driven by the amount of neutrons
present. Natural boron consists of 20% boron-10 and nearly 80% Bor-11. Boron-10 has a high
cross-section for absorption of low energy (thermal) neutrons. By adding more boric acid to
the reactor coolant which circulates through the reactor, the probability that a neutron can
survive to cause fission is reduced. Therefore, changes in boric acid concentration effectively
regulate the rate of fission taking place in the reactor. This method is only used in pressurized
water reactors (PWRs). Boric acid is also used in weak fuel pools containing uranium rods in
order to control neutron reproduction.
Impregnate and Preservation
Boric acid is used in preventing of wet and dry timbers from rotting. It can be used in
combination with an ethylene glycol carrier to treat external wood against fungal and insect
attack. It is possible to make use of borate-impregnated rods for insertion into wood via drill
holes where dampness and moisture properties. It is available in a gel form and injectable
paste form. Concentrates of borate-based treatments can be used to prevent slime,
mycelium, and algae growth, even in marine environments. Boric acid and salt mixture is used
in the curing of cattle hides, calfskins, and sheepskins. This helps to control bacteria
development, and helps to control insects.
Medical
Boric acid can be used as an antiseptic for small burns or cuts. Also, it is used in dressings or
salves. Boric acid is applied in a very dilute solution as an eye wash. Dilute boric acid can be
used to remove bacterias ( eg. bacterial vaginosis). As an antibacterial compound, boric acid
can also be used as an acne treatment. It is also used in socks of sporters in order to prevent of
occurring of bacterias in their feet. Furthermore, as a solution it can be used to treat some
kinds of otitis externa (ear infection) in both humans and animals
Eti Maden İşletmeleri Genel Müdürlüğü
Ayvalı Mah. Halil Sezai Erkut Cad. Afra Sok. No:1/A
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ANKARA / TURKEY
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Development of Technology Department
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EYS FRM-ETİ-00 10 /20/1/2014-01
3.
Insecticidal
Boric acid is used for control of cockroaches, termites, fire ants, fleas, silverfish, and many other
insects. The product is generally considered to be safe to use in household kitchens to control
cockroaches and ants. It acts as a stomach poison affecting the insects' metabolisms, and boric
acid powder kills them having abrasive impact on insects' exoskeletons.
Lubrication
Colloidal suspensions of nanoparticles of boric acid dissolved in petroleum or vegetable oil can
form a remarkable lubricant on ceramic or metal surfaces and it decreases coefficient of
friction considerably. Self-lubricating H3BO3 films result from a spontaneous chemical reaction
between water molecules and B2O3 coatings in a humid environment
Chemical and Physical Properties
White or colorless, solid crystal powder
1.51 g/cm3 (20 oC)
Specific Gravity
0.928 g/cm3 (Granular: Normal, Low Sulp.)
0.750 g/cm3 (Powder)
Bulk Density
Molecular Weight
61.83 g/mol
Melting Point
450 oC
Boiling Point
1860 oC
Chemical Content:
Granular
Powder
Normal
Sulphate
Low
Sulphate
Ultra Low
Sulphate
Ultra Low
Sulphate
Standard
Powder
Purity
99.90 % min
99.90 % min
99.90 % min
99,90 % min
99.90 % min
B2O3
56.25 % min
56.25 % min
56.25 % min
56.25 % min
56.25 % min
SO4
500 ppm max
130 ppm max
12 ppm max
5 ppm max
500 ppm max
Cl
10 ppm max
10 ppm max
5 ppm max
4 ppm max
10 ppm max
Fe
7 ppm max
7 ppm max
4 ppm max
7 ppm max
10 ppm max
Eti Maden İşletmeleri Genel Müdürlüğü
Ayvalı Mah. Halil Sezai Erkut Cad. Afra Sok. No:1/A
06010 Etlik-Keçiören
ANKARA / TURKEY
For more information:
Development of Technology Department
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EYS FRM-ETİ-00 10 /20/1/2014-01
4.
Size Distribution:
Granular
Powder
Normal
Sulphate
Low
Sulphate
Ultra Low
Sulphate
Ultra Low
Sulphate
Standart
Powder
+1,000 mm
4.00 % max
4.00% max
4.00 % max
0.00
0.00
-0,063 mm
4.00 % max
4.00 % max
4.00 % max
-0,125 mm
-
-
-
45.00 % min
45.00 % min
X-Ray Diffraction Analysis
Eti Maden İşletmeleri Genel Müdürlüğü
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5.
TG/DTA
Solubility in Water:
Temperature °C
Boric acid % by weight in saturated solution
0
2.52
10
3.78
15
4.13
20
5.08
25
5.54
30
6.72
35
7.16
40
8.87
Eti Maden İşletmeleri Genel Müdürlüğü
Ayvalı Mah. Halil Sezai Erkut Cad. Afra Sok. No:1/A
06010 Etlik-Keçiören
ANKARA / TURKEY
For more information:
Development of Technology Department
www.etimaden.gov.tr
EYS FRM-ETİ-00 10 /20/1/2014-01
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