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SCHPM 5N Ultra High Purity Tellurium Dioxide TeO2 Powder 99.999% CAS 7446-07-3 Inorganic Optical Compound Raw Material Factory Wholesale buy - large image1

SCHPM 5N Ultra High Purity Tellurium Dioxide TeO2 Powder 99.999% CAS 7446-07-3 Inorganic Optical Compound Raw Material Factory Wholesale buy - image1

SCHPM 5N Ultra High Purity Tellurium Dioxide TeO2 Powder 99.999% CAS 7446-07-3 Inorganic Optical Compound Raw Material Factory Wholesale

Name: SCHPM 5N Ultra High Purity Tellurium Dioxide TeO2 Powder 99.999% CAS 7446-07-3 Inorganic Optical Compound Raw Material Factory Wholesale
Brand: jianxin
SKU: pr2607171331
Price: 1 USD
Availability: InStock

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Unit Price:

$1-1.3/MT FOB

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CAS No.:

7446-07-3

Grade:

Industrial Grade

Content:

99.99%

Port:

shanghai

Brand:

jianxin

Packaging:

1kg/standard bag

Price valid (until):

2030-01-01

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Shanghai Jianqi Chemical Company

Company Type:

Trader

Location:

China

Qualification:

Main Products:

chemical raw materials

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Product Description
Seller Information

Description

Product Detail

SCHPM branded 99.999% (5N) high purity Tellurium Dioxide (TeO₂) with CAS number 7446-07-3 is a premium amphoteric inorganic compound refined by high-purity tellurium metal vacuum oxidation and repeated recrystallization purification process. It is the irreplaceable core starting material for high-end acousto-optic devices, infrared optical glass, photovoltaic thin film manufacturing and university advanced material research labs, widely exported to global photoelectric enterprises and scientific research institutions.

This product appears as uniform fine white crystalline powder with tetragonal paratellurite crystal structure at room temperature; it will turn faint yellow under continuous heating above 400℃ and sublimate steadily at high temperature. Chemically, TeO₂ shows typical amphoteric characteristics, dissolvable in concentrated strong acid and strong alkali to generate tellurite salts, while nearly insoluble in pure water and neutral aqueous solution. Our exclusive vacuum oxidation production route eliminates residual nitric acid, sulfuric acid and other acid radical impurities existing in ordinary industrial-grade TeO₂, effectively avoiding long-term corrosion of crystal growth furnaces and optical coating equipment, extending service life of industrial production lines.

The biggest advantage of SCHPM 5N grade tellurium dioxide lies in ultra-strict trace element control: selenium, sulfur, lead, iron, copper and other interfering impurities are limited to ppb levels. Trace foreign impurities will cause severe lattice defects inside paratellurite single crystals, reduce light transmittance and acousto-optic conversion efficiency, and bring noise interference to laser modulation signals. Our low-impurity TeO₂ thoroughly solves such quality problems, greatly raising the yield and optical stability of finished acousto-optic modulators, infrared thermal imaging lenses and CdTe photovoltaic thin film products.

In laser communication and optical testing equipment factories, high-purity TeO₂ powder is used as raw material for growing large-size paratellurite single crystals, which are processed into acousto-optic deflectors, optical switches and spectrum filters with superior modulation efficiency across visible and near-infrared bands. For infrared optical material manufacturers, it serves as the main component of high-refractive-index tellurite glass, featuring wide transmission window covering 0.33–5μm wavelength, ideal for military thermal detectors, infrared monitoring instruments and mid-infrared optical fiber production.

New energy photovoltaic factories adopt this TeO₂ as precursor to deposit cadmium telluride thin film on solar cell substrates, improving photoelectric conversion rate and cell stability. Electronic material manufacturers add high-purity TeO₂ into silver conductive paste for PCB and 5G radio frequency components to enhance paste sintering performance and circuit conductivity. For laboratory testing institutions, it acts as standard tellurium element reference reagent for ICP-MS and AAS instrument calibration, and raw material for synthesizing various high-purity tellurium chemical catalysts.

5N ≥99.999% ultra-high purity, trace impurities (Se, S, Pb, Fe, Cu) controlled under 0.5ppm, no lattice defects for optical crystal growth
Produced by vacuum oxidation & multi-stage recrystallization, free of residual acid ions, no equipment corrosion
Narrow particle size distribution, loose powder, excellent sintering performance for single crystal pulling
Outstanding infrared transmittance and high acousto-optic merit value, stable optical performance in mass production
Vacuum nitrogen-sealed light-proof packaging to avoid moisture contamination and surface oxidation
Complete test documents: GDMS impurity report, COA, MSDS, customs clearance certification
Flexible supply: gram lab samples and ton bulk industrial orders with stable spot stock

Items	Specifications
Name	Tellurium Dioxide TeO₂
Appearance	White fine crystalline powder
TeO₂ Purity	≥99.999%

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Certificates

Basic Info

Product Name:

Tellurium dioxide

Other Name:

TELLURIUM(IV) OXIDE;TELLERIUM OXIDE;TELLURIUM(+4)OXIDE;telluriumoxide(teo2);Tellurous acid anhydride;TelluriuM(IV) oxide, 99.9995%, (trace Metal basis);TELLURIUM DIOXIDE 99.5+ 25 G;TELLURIUM DIOXIDE 99.5+ 10 G

CAS No.:

7446-07-3

Molecular Formula:

O2Te

InChIKeys:

LAJZODKXOMJMPK-UHFFFAOYSA-N

Molecular Weight:

159.6

Exact Mass:

161.89600

EC Number:

231-193-1

UNII:

397E9RKE83

NSC Number:

8956

TSCA:

TSCA listed

DSSTox ID:

DTXSID8052487

Color/Form:

White to slightly yellow

HScode:

28112900

Categories:

Free Radicals

Characteristics

λmax:

360nm(neat)(lit.)

PSA:

34.1

Physical Properties:

White crystals; dimorphic; exists in tetragonal and orthorhombic forms; density 5.75 g/cm3(tetragonal), 6.04 g/cm3(orthorhombic); melts at 733°C forming a deep yellow liquid; vaporizes at 1,245°C; insoluble in water; soluble in acids and alkalies.

XLogP3:

-0.61840

Appearance:

white crystalline powder

Density:

5.67 g/mL at 25 °C (lit.)

Melting Point:

733 °C (lit.)

Boiling Point:

1245 °C

Water Solubility:

insoluble

Storage Conditions:

Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Vapor Pressure:

0Pa at 25℃

Toxicity:

LD50 orally in Rabbit: > 2000 mg/kg

Flammability characteristics:

Non flammable

Critical Temperature & Pressure:

no restrictions.

See More Tellurium dioxide Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin corrosion, Sub-category 1A

Skin sensitization, Sub-category 1A

Serious eye damage, Category 1

Acute toxicity - Category 4, Inhalation

Carcinogenicity, Category 1A

Reproductive toxicity, Category 1A

Specific target organ toxicity â repeated exposure, Category 1

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H302 Harmful if swallowed H314 Causes severe skin burns and eye damage H317 May cause an allergic skin reaction H332 Harmful if inhaled H350 May cause cancer H360 May damage fertility or the unborn child H372 Causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H411 Toxic to aquatic life with long lasting effects
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P271 Use only outdoors or in a well-ventilated area. P203 Obtain, read and follow all safety instructions before use. P273 Avoid release to the environment.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P316 Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P317 If skin irritation or rash occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical help if you feel unwell. P391 Collect spillage.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Tellurium dioxide Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
chemical raw materials

Location:
Building 1, Unit 5, Room 313, Building L, No. 688 Qiushi Road, Jinshuiwei Town, Jinshan District, Shanghai

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2019
Country Product Purchase Quantity Date Posted

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