Molecular Formula | AlKO6Si2 |
Molar Mass | 218.247238 |
Density | 2.560 |
Boling Point | 330°C at 760 mmHg |
Vapor Presure | 3.35E-05mmHg at 25°C |
Appearance | rod |
Storage Condition | Room Temprature |
Sensitive | Easily absorbing moisture |
MDL | MFCD00077645 |
Use | Used as calcium, magnesium, iron plasma exchanger and water purification agent, but also for the determination of nitrogen in blood, urine and sugar refining |
Hazard Symbols | Xn - Harmful |
Risk Codes | 43 - May cause sensitization by skin contact |
Safety Description | 36/37 - Wear suitable protective clothing and gloves. |
WGK Germany | 3 |
FLUKA BRAND F CODES | 3 |
is a general term for zeolite minerals, is a water-containing alkali or alkaline earth metal aluminosilicate minerals. There are many types, such as clinoptilolite, mordenite, chabazite, calcium cross zeolite, zeolite, zeolite, etc. The chemical composition of zeolite is very complex, and there are great differences due to different types. The general chemical formula of zeolite is: AmBpOZp-nHzO, and the structural formula is a_/q [(A102) x (Si02)y].nH20, where: A is Ca, Na, K, Ba, Sr and other cations, B is A1 and Si,q is the cation Price, m is the number of cations, n is the number of water molecules, x is the number of Al atoms, y is the number of Si atoms, y/x is usually between 1 and 5, and x y is the number of tetrahedra in the unit cell. At present, clinoptilolite and mordenite are widely used. Zeolite mineral crystal system is different, the crystal is fibrous, hair-like, columnar, a small amount of plate-like or short columnar. Colorless or white, when the impurity is light yellow or gray, glass or silk luster. The hardness is 3.5~5.5, the density is 1. 9~2.3g/cm3, the density of the zeolite containing Ba and Zn can reach 2. 8g/cm3, and the density decreases after dehydration. Zeolite has the properties of adsorption, ion exchange, catalysis, acid resistance and heat resistance. Zeolite is mainly produced in the fissure of the volcanic stone, and the calcite and quartz.
flotation, gravity separation and magnetic separation are mainly used. Zeolite mines in China are small open-pit mines mined locally, and manual mining is the main method. In terms of mineral processing, domestic zeolite flotation, flocculation, gravity separation, magnetic separation and other experimental research, has achieved initial results
.Natural zeolite is a new material, which is widely used in industry, agriculture, national defense and other departments as a mixed material of ion exchanger, adsorption and separation agent, desiccant, catalyst and cement. In the petroleum, chemical industry, for the catalytic cracking of petroleum refining, hydrocracking and chemical isomerization of petroleum, reforming, alkylation, disproportionation and used as paper, synthetic rubber, plastic, resin, fillers such as coatings; Building materials industry, used as cement admixture, the production of lightweight high-strength board and brick; In national defense, space technology, ultra-vacuum technology, energy development, electronics industry, etc, used as adsorption separation agent and desiccant; Used as soil conditioner in agriculture, can protect fertilizer, water, prevent diseases and insect pests; In the livestock industry, used as feed additives and deodorants; In environmental protection, it is used to treat waste gas and wastewater, remove or recover metal ions from wastewater waste liquid, and remove radioactive pollutants in wastewater. After ion exchange, the zeolite saturated with radioactive material can be used as a radiation source. In addition, ammonia can be recovered from the waste gas of the ammonia plant, SOz can be recovered from the waste gas of the sulfuric acid plant, and carbon monoxide and ammonia can be adsorbed from other industrial waste gases.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | as desiccant as an exchanger and water purifier for calcium, magnesium and iron plasma, as well as determination of nitrogen in blood and urine and refining of granulated sugar, etc. |