Thulium

Thulium Oxide

CAS #: 12036-44-1

Molecular Formula: Tm2O3

EC No.: 234-851-6

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Product Details

Thulium(III) oxide is a light green powder with the chemical formula Tm2O3. It is soluble in Mineral acid, insoluble in water, and easy to absorb moisture and carbon dioxide. When heated to 1300 ℃, it turns into hexagonal crystal and does not melt.

Applications:

1. Used for manufacturing portable X-ray transmission devices.

2. Tm: YAG is used as a special scintillation crystal growth additive.

3. Used for nuclear reactor control materials.

Product Series

Product	Product Code	Security Data	Technical Data
Thulium Oxide 99.9%	ET-Tm-01	Thulium Oxide.pdf	Thulium Oxide Tm2O3 99.9%.pd
Thulium Oxide 99.99%	ET-Tm-02		Thulium Oxide Tm2O3 99.99%.pdf
Thulium Oxide 99.999%	ET-Tm-03		Thulium Oxide Tm2O3 99.999%.pdf

Properties (Theoretical)

Molecular Formula	O₃Tm₂
Molecular Weight	385.88
Appearance	White
Melting Point	2,341° C (4,246° F)
Boiling Point	3,945° C (7,133° F)
Density	8600 Kilograms per meter³
Precise Quality	N/A
Single Isotope Mass	385.853144 Big
Charge	N/A

Health & Safety Information

Signal Word	Warning
Risk Statement	H315-H319-H335
Dangerous Code	Xi
Preventive Instructions	P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a
Flash Point	N/A
Risk Code	36/37/38
Safety Statement	26-36
RTECS Number	N/A
Transportation Information	NONH
WGK Germany	3
GHS Pictogram

Packaging Specifications:

Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags

Sample packaging: 500 g/bag, 1 kg/bottle

Thulium Oxide

The main production method of thulium oxide is the oxalic acid precipitation method. That is, using thulium chloride or thulium nitrate solution as raw materials, adjusting the Ph value to 2 with oxalic acid, adding ammonia water to precipitate thulium oxalate, followed by heating and ripening, separation and washing, drying at 110℃, and then calcination at 900-1000 ℃ to produce Thulium Oxide.

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