Sodium Thiosulfate 0.1 Normal Solution

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Product Short Description: Sodium Thiosulfate Standard Solution
Product Technical Specification:

Product Specification:

Product Number:

319546

CAS Number:

1313-82-2

MDL:

MFCD00003499

Formula:

Na2O3S2

Formula Weight:

158.11 g/mol

 

TEST  Specification

Appearance (Clarity)

Clear

Appearance (Color)

Colorless

Appearance (Form)

Liquid

Purity Titration by NATH (N) Sample as Titrant

0.0950 - 0.1050 Normal

NIST (SRM #136E)

Confirmed

Traceable to NIST SRM #136E (Potassium dichromate) Expiration Date Period 3 Years

 

 Specification: PRD.0.ZQ5.10000012014

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Methyl Red Indicator Solution

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Product Short Description: Lab Reagent
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Boric Acid 3% Solution

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Product Short Description: Lab Reagent
Product Technical Specification:

 

CAS Number: 10043-35-3
MDL: MFCD00011337
Formula: H3BO3
Formula Weight: 61.83 g/mol

 

Test Specifications
Appearance (Color) White to Off-White
Appearance (Form) Powder
Chloride (Cl) <0.001 %
Phosphate (PO4)  < 0.001 %
Sulfate (SO4) < 0.01 %
Calcium (Ca) < 0.005 %
Heavy Metals (as Lead) < 0.001 %
Iron (Fe) < 0.001 %
Recommended Retest Period 2 years  
Note
ACS tests		  
Assay  >_ 99.5 %
Insoluble in Methanol <_ 0.005 %
Nonvolatile with Methanol <_ 0.05 %

 

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Fluoride Ion Solution 0.0100 Molar

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Product Short Description: Lab Reagent
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Potassium Fuloride Solution - 1 Mole

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Product Short Description: Lab Reagent
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Hardness Titrating Solution (AF Grade)

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Product Short Description: Lab Reagent
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Sodium Sulfate Anhydrous

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Product Short Description: Lab Reagent
Product Technical Specification:

 

 
Appearance (Form) Powder
Purity 99%
Molecular Formula Na₂O₄S
Formula Weight  142.04 g/mol
Chloride content 0.2% Max 
Melting point
884 °C (1,623 °F; 1,157 K)(anhydrous)
32.38 °C (decahydrate)
Boiling point 1,429 °C (2,604 °F; 1,702 K)(anhydrous)
PH 6 - 7.5
Remarks:

Sodium Sulfate also widely used as LAUNDRY CHEMICALS.
 

Use of Sodium Sulfate Anhydrous :
  • Surfactants, decontamination, foaming, wetting agents, etc.
  • Relatively low-level ion pair reagents, when the requirements are not high, cheaper than heptane, sodium pentane sulfonate.
  • As a raw material, modification of materials.
  • Capillary electrophoresis analysis, additives, generally used as a molar solution .
  • Other analytical methods will also be used, such as flow column analysis.
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Sodium Sulphite (Sulfite), 0.05% Solution

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Product Short Description: Lab Reagent
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Starch Indicator Solution

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Product Short Description: Lab Reagent
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Boric Acid 2% Solution

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Product Short Description: Lab Reagent
Product Technical Specification:

 

   
CAS Number: 10043-35-3
MDL: MFCD00011337
Formula: H3BO3
Formula Weight: 61.83 g/mol

 

Test Specifications
Appearance (Color) White to Off-White
Appearance (Form) Powder
Chloride (Cl) <0.001 %
Phosphate (PO4)  < 0.001 %
Sulfate (SO4) < 0.01 %
Calcium (Ca) < 0.005 %
Heavy Metals (as Lead) < 0.001 %
Iron (Fe) < 0.001 %
Recommended Retest Period 2 years  
Note
ACS tests		  
Assay  >_ 99.5 %
Insoluble in Methanol <_ 0.005 %
Nonvolatile with Methanol <_ 0.05 %

 

Remarks:
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