Product Description:

1.Item Name: Cerium Oxide

2.Appearance: light yellow powder

3.Formula:   CeO2

4.Formula weight: 172.11

5.CAS No.: 1306-38-3

6.EINECS No.: 215-150-4

7.Density:   7.13g/cm3

8.Melting point:   2600 ℃

9.Bolting point:   3500 ℃

10.Solubility : insoluble in water and difficult to soluble in acid

Applications:

1. Rare earth polishing

2. Glass decolorization, glass coloring, rare earth clarifying agent, all glass contains iron oxide：

It can be brought into glass through raw materials, sand, limestone and broken glass in glass ingredients, and it exists in two forms: one is ferrous iron, which makes the color of the glass dark blue, and the other is ferrous, which makes the color of the glass yellow. Ferric iron, decolorization is to oxidize ferrous iron ions into ferric iron, because the hue intensity of ferric iron is only one-tenth of that of ferrous iron, and then add a colorant to neutralize the color to light green.

The rare earth elements used for glass decolorization are mainly cerium oxide and neodymium oxide.

The rare earth glass decolorizer replaces the traditional white arsenic decolorizer, which not only improves the efficiency, but also avoids the pollution of the white arsenic. Cerium oxide for glass decolorization has the advantages of stable high temperature performance, low price and no absorption of visible light.

The use of cerium oxide instead of traditional arsenic oxide for glass clarification, removal of air bubbles and trace colored elements, has a significant effect in the preparation of colorless glass bottles. Arsenic contamination of the environment and glass.

3. Cerium oxide is added to daily glass：

Such as architectural and automotive glass, crystal glass, which can reduce the transmittance of ultraviolet rays. This application has been promoted in Japan and the United States.

In my country, with the improvement of the quality of life, there will be a better market. Neodymium oxide is added to the tube glass to eliminate the dispersion of red light and increase the clarity.

Special glasses with rare earth added include: Lanthanum glass has high refraction and low dispersion properties, and is widely used in the manufacture of various lenses and lenses for cameras and video cameras, especially for high-altitude photography devices; Cerium radiation protection glass, used in automotive glass and TV glass Shell; Neodymium glass is used for laser materials, which is an ideal material for giant lasers, mainly used in controlled nuclear fusion devices.

4. Fine functional ceramics：

 When added to ceramics, the sintering temperature can be lowered, the lattice growth can be inhibited, and the compactness of the ceramics can be improved;

5. Alloy coating: 

Adding in zinc-nickel, zinc-drill and zinc-iron alloys changes the electro-crystallization process of zinc, promotes the preferred orientation of the crystal plane, and makes the coating structure more uniform and dense, thereby improving the corrosion resistance of the coating;

Specifications:

Preparation:

The carbonic acid precipitation method uses the extracted and separated cerium chloride solution as the raw material, adjusts the Ph value to 2 with ammonia water, adds ammonium bicarbonate to precipitate cerium carbonate, heats and matures, washes, separates, and then burns at 900 to 1000 ° C to form cerium oxide .

Safety: 

Dangerous goods signs: Xi, Xn

Hazard category code: 36-22

Safety Instructions 26-24/25-23

WGKGermany: 3

RTECS No. FK6310000

TSCA: Yes

Hazard Class: 8

Customs code: 28461000

Hazardous Substances Data: 1306-38-3 (HazardousSubstancesData)

Toxicity: LD50orallyinrats:>5.0g/kg(Lambert)

The product is non-toxic, odorless, non-irritating, safe and reliable, stable in performance, and does not chemically react with water and organic matter. It is an ideal new type of sunscreen or UV protection agent.

Acute toxicity: Oral - rat LD50: > 5000 mg/kg; Intraperitoneal - mouse LD50: 465 mg/kg.

Flammability Hazardous Characteristics: Not flammable.

Storage and transportation characteristics: The warehouse is ventilated and dry at low temperature.

Extinguishing Media: Water.