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Product

Sodium diethyldithiocarbamate trihydrate

CAS No:20624-25-3     
Usages:Copper reagent
Introduction:

 

 

Chemical Name

Sodium diethyldithiocarbamate trihydrate

CAS No.

20624-25-3

Molecular formula

C5H10NNaS2·3H2O

EINECS No.

205-710-6

Molecular weight

225.31

Molecular Structure

Details

Appearance: White crystal

Assay: 99.0%min

Melting point: 94-96℃

Solubility in water: Passes test

Sulfated ash (SO42-): 30.5—32.5%

Sensitivity as reagent for Copper: Passes test

Solubility: Solve in water, water liquor instability;

solve in alcohol insolve in chloroform.

 

Main Application

Copper chromogenic reaction, the colorimetric

determination heavy metal extracting a few such as

copper, cadmium, vanadium, nickel and cobalt.

As good of collector of copper, lead, antimony sulfide

ore ,also can make rubber vulcanization promoting agents.

  

Basic Violet 3

CAS No:548-62-9     
Usages:PH Indicator & Dyes and Pigments
Introduction:

8-Hydroxyquinoline

CAS No:148-24-3     
Usages:Pharmaceutical intermediates
Introduction:

 

Chemical Name

8-Hydroxyquinoline

Another name

8-Quinolinol; Quinolin-8-ol; Oxine

CAS No.

148-24-3

Molecular formula

C9H7NO

EINECS No.

205-711-1

Molecular weight

145.16

Molecular Structure

Details

Appearance: White crystalline powder

Melting point:  73-74.5°C

Chloride: 0.002%max

Sulfate: 0.01%max

Residue on ignition:  0.02%max

Heavy metals: 20ppm max

Package: 25KG/ fibre drum inner lined with double-layer PE bag

Main Application

Pharmaceutical intermediates.

 

1,10-Phenanthroline anhydrate

CAS No:66-71-7     
Usages:Used for testing of ferrous sensitivity reagents
Introduction:

 

 

Chemical Name

1,10-Phenanthroline anhydrate

Molecular formula

C12H8N2

CAS No.

66-71-7

EINECS No.

200-629-2

Molecular weight

180.21

Molecular Structure

Details

Assay: 99% min.(AR)

Dissolution test in ethanol:   qualified 

Residue on ignition (as Sulfate):  0.1% max.

Main Application

Used for testing of ferrous sensitivity reagents

 

1, 10-Phenanthroline monohydrate

CAS No:5144-89-8     
Usages:Used as redox indicator, reagents for determining ferrous.
Introduction:

 

 

Chemical Name

1, 10-Phenanthroline monohydrate

Molecular formula

C12H10N2O

CAS No.

5144-89-8

EINECS No.

200-629-2

Molecular weight

198.22

Molecular Structure

Details

Appearance:White powder

Assay: 99% min.(AR)

Iron complex compound molar absorption coefficient(L/ cm. Mol): 1.15 X 104 min.

Ignition residue(Sulfate): 0.1% max.

Ethanol dissolved test:Qualified

Moisture: 8.5-10.0% 

Packing: 1kg/bottle, 25kg/fibre drum

Main Application

Used as redox indicator, reagents for determining ferrous.

 

Phenolphthalein

CAS No:77-09-8     
Usages:Indicator
Introduction:

 

 

Chemical Name

Phenolphthalein

Molecular formula

C20H14O4

CAS No.

77-09-8

EINECS No.

201-004-7

Molecular weight

318.33

Molecular Structure

Details

Visual transition interval (PH): 8.0(Colorless)-10.0(Reddish purple)

Mass absorption coefficient: 68.0---75.0(L/cm·g)

Solubility in Ethanol: Pass

Loss on drying: 1.0 % max

Residue on ignition (sulfate): 0.05%max

Packing: 25kgfibre drum

Main Application

 

 

Methyl orange

CAS No: 547-58-0     
Usages:Indicator
Introduction:

 

Chemical Name

Methyl orange

CAS No.

547-58-0

Molecular formula

C14H14N3NaO3S

EINECS No.

208-925-3

Molecular weight

327.33

Molecular Structure

Details

Appearance: Orange yellow or piece crystal

PH change range: 3.0(red)~4.4(yellow)

Solubility in water: Passes test

Sulfated ash: 18.5-22.0%

Sensitivity test: Passes test

Oxide: Passes test

Solubility: easy solve in hot water, water solution is gold yellow, 

insolve in alcohol.

Packing: 25kgfibre drum

Main Application

PH Indicator

Methylene blue trihydrate

CAS No:7220-79-3     
Usages:indicator
Introduction:

 

Chemical Name

Methylene blue trihydrate

Molecular formula

C16H18CLN3S·3H2O

CAS No.

7220-79-3

EINECS No.

 

Molecular weight

373.90

Molecular Structure

Details

Appearance: Bottle green crystal or crystalline powder with gunmetal shine, without smell.

Assay: 98.0% min

Change color range: Passes test

Solubility in ethanol: Passes test

Loss on drying: 15%max

Sulfated ash: 0.5%max

Biological stain: Passes test  

As: 0.0005%max

Cu: 0.03%max

Zn: 0.02%max

Solubility: soluble in water, ethanol and chloroform, water solution is blue.

Packing: 25kgfibre drum

Main Application

Used for REDOX indicator, adsorption indicator and biological dyeing agents.

Fluorescein disodium salt

CAS No:518-47-8     
Usages:REDOX instructions reagents; Biological dyeing agents.
Introduction:

 

Chemical Name

Fluorescein disodium salt

CAS No.

518-47-8

Molecular formula

C20H10Na20

EINECS No.

208-253-0

Molecular weight

376.27

Molecular Structure

   

Details

Appearance: Orange-red crystal

Solubllity in water: pass test

Sensitivity test for bromine: pass test

acridine yellow: qualified

Water: 7.0% max.

Biological stain: pass test

Main Application

Indicator

2,3-Butanedione dioxime

CAS No:95-45-4     
Usages:Nickel reagent; Used for Analytics reagents and REDOX indicator and chromatographic analysis reagent
Introduction:

 

 

Chemical Name

2,3-Butanedione dioxime

CAS No.

95-45-4

Molecular formula

C4H8N2O2

EINECS No.

202-420-1

Molecular weight

116.12

Molecular Structure

Details

Appearance: White crystal powder

Assay: 98.0% min.

Melting range: 238~242℃

Solubllity in alcohol: pass test

Sulfated ash: 0.05% max.

Main Application

Analytical reagent.

 

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