New Arrival China Electret Tourmaline Powder - Tourmaline Sand Black Tourmaline Crystal for Drinking Water Treatment – Huabang
New Arrival China Electret Tourmaline Powder - Tourmaline Sand Black Tourmaline Crystal for Drinking Water Treatment – Huabang Detail:
Tourmaline is the general name of tourmaline group minerals. Its chemical composition is relatively complex. It is a ring structure silicate mineral characterized by boron containing aluminum, sodium, iron, magnesium and lithium. The hardness of tourmaline is usually 7-7.5, and its density is slightly different with different types. See the table below for details. Tourmaline is also known as tourmaline, tourmaline, etc.
Tourmaline has unique properties such as piezoelectricity, pyroelectricity, far-infrared radiation and negative ion release. It can be compounded with other materials by physical or chemical methods to produce a variety of functional materials, which are used in environmental protection, electronics, medicine, chemical industry, light industry, building materials and other fields.
Size: 1-2mm 2-3mm, 3-5mm.
Tourmaline’s own characteristics
Spontaneous polarity
When the temperature and pressure of tourmaline crystal change, the relative displacement between the charged particles in the crystal occurs, the positive and negative charge centers separate, and the total electric moment of the crystal changes, resulting in the generation of polarized charge. The spontaneous polarization effect of tourmaline shows that there is an electrostatic field with the c axis as the two poles around the tourmaline crystal. When the crystal size of tourmaline is very small, the effect of tourmaline particles is equivalent to an electric dipole. Due to the mutual cancellation of positive and negative charges, the electric field intensity is the largest in the direction parallel to the c axis. The spontaneous polarization effect of tourmaline is permanent, which is closely related to its structure and composition.
Piezoelectric, thermoelectric effect
Tourmaline has piezoelectricity effect and thermoelectricity effect at the same time. When the surrounding environment changes, the temperature or pressure changes, the crystal bond in the tourmaline lattice is twisted, and the electron is transferred, so that one end of tourmaline is positively charged and the other end is negatively charged. The opposite electrode is defined as C + and C -. C + is the positive pole compressed along the c-axis during cooling or pressurization, and C – is the negative pole expanded along the c-axis during heating or decompression.
Data sheet
Item |
SiO2 |
Al2O3 |
MgO |
CaO |
K2O |
FeO |
NaO2 |
Cr2O3 |
TiO2 |
Standard(%) |
37 |
30 |
8 |
1.2 |
0.08 |
8.1 |
1.2 |
0.22 |
0.44 |
Product detail pictures:
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We now have a specialist, efficiency workforce to deliver excellent service for our purchaser. We always follow the tenet of customer-oriented, details-focused for New Arrival China Electret Tourmaline Powder - Tourmaline Sand Black Tourmaline Crystal for Drinking Water Treatment – Huabang , The product will supply to all over the world, such as: UK, azerbaijan, Bangladesh, We supply professional service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia. Adhering to the business philosophy of ‘customer first, forge ahead', we sincerely welcome clients from at home and abroad to cooperate with us.
By Kevin Ellyson from Armenia - 2017.01.28 18:53
With a positive attitude of "regard the market, regard the custom, regard the science", the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.
By Judith from Puerto Rico - 2017.12.19 11:10