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eriochrome black t A.C.S.

Formula: C20H12N3O7SNa

Molar mass: 461.381 g/mol

Appearance: dark red/brown powder

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europium sulfide lab grade 99% LAB GRADE 99%

Europium sulfide is dark gray powder, which is a kind of rare earth sulfides. The other names are europium(II) sulfide, europium sulphide. It is stable in air. Eu2O3 is the raw material. It can use europium oxalate or europium sulfate as raw material too.

Europium Sulfide

CAS No.: 12020-65-4 EINECS No.: 234-661-3 Molecular Formula: EuS Molecular Weight:184.02

 

EuS/TRES TRES La Ce Pr Nd Y Sm
>99.95% >99% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001%
Gd Tb Dy Ho Er Tm Yb Lu
<0.000% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001%
Fe Si Ca Al Cu Ni O S
<0.0003% <0.0005% <0.0002% <0.0005% <0.0003% <0.0003% <0.0003% <1.0%
C              
<0.003%            

 

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lithium perchlorate A.C.S. 99%

Appearance : White to Off white crystals or lumps

Assay : Min.99%

pH : 5.5-7.5

Heavy metals : 0.001%

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magnesium perchlorate A.C.S.

Linear Formula Mg(ClO4)2·6H2O

Molecular Weight 331.30

Appearance (Color) White

 Appearance (Form) Crystals

Complexiometric EDTA 7.2 - 7.5 % 

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n,n-dimethyl-p-toluidine A.C.S. 99%

Molecular Formula:

C9H13N

Molecular Weight:

135.21

Description:

A light yellow coloured oily liquid.

Assay:

99.0% (min).

Specific Gravity:

0.936 to 0.940 at 200/200C.

Other Organic Impurities:

0.5% (max)

Other Toluidines:

1.0% (max)

Moisture content by KF

0.1% (max)

 

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neodymium sulfide lab grade 99% LAB GRADE 99%

Neodymium sulfide is reddish brown powder, which is a kind of rare earth sulfides. The other names are neodymium trisulfide, neodymium(III) sulphide. There are two kinds of structure, α-type and γ-type. The first of same structure to Gd2S3 is orthorhombic system, which is reddish brown solid. The second of same structure to Th3P4 is cubic system, which is yellow solid. Nd2S3 is n-type semiconductor material.

Neodymium Sulfide

CAS No.: 12035-32-4 EINECS No.: 234-820-7 Molecular Weight: Nd2S3 Molecular Weight: 384.678
Melting Point:2207℃ Density: 5.46    

 

Nd2S3/TRES TRES La Ce Pr Gd Y Sm
>99.95% >99% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001%
Eu Tb Dy Ho Er Tm Yb  
<0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001% <0.0001%  
Fe Si Al Cu Pb S C  
<0.0003% <0.0025% <0.0008% <0.0003% <0.0003% <1.0% <0.005

 

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oleylamine Technical 70%

Oleylamine is the organic compound with the formula C18H35NH2. It is an unsaturated fatty amine related to the fatty acid oleic acid. Although the pure compound is a colorless oil, typical commercial samples are yellowish and contain a few percent other fatty amines.[

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pentachlorobenzonitrile >99%

intermediate of pesticides,medicines,dyes and coatings.

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phenolphthalein A.C.S.

Appearance (Colour)

White

Appearance (Form)

Powder

Solubility (Turbidity) 2% solution in Methanol

Clear

Assay

min. 99%

Melting Point

258 - 263°C

 

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phosphomolybdic acid A.C.S.

Appearance (Colour)

Yellow

Appearance (Form)

Crystalline compound

Solubility (Turbidity) 10% aq. solution

Clear

Solubility (Colour) 10% aq. solution

Yellow

Insoluble matter

max. 0.01%

Chloride (CI)

max. 0.02%

 

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