Starch Solution, fresh 1% Aqueous

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Product Short Description: Starch Solution, fresh 1% Aqueous
Product Technical Specification:
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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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Denatured Alcohol

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Product Short Description: Denatured alcohol or methylated spirits is ethanol that has additives to make it poisonous, extremely bad tasting, foul smelling or nauseating, to discourage recreational consumption. In some cases it is also dyed.
Product Technical Specification:

 

Product Name    : Denaturerd Ethanol
CAS number : 64-17-5
UN number   : 1170
Formula    : CH3CH2OH
Odour   : VINOUS
Solubility in water     : Complete
Density   : 0.789   at 20    oC
Boiling point    : 78 oC
Melting point   : -117 oC
Viscosity     : 1.2 cp at 20 oC
Flashpoint   : 12oC
Explosive limits   : 3.3 – 19 Vol%
Vapour pressure    : 58 mbar at 20 oC
Skin absorption/irritation    : YES
TLV       Country  NL            Year  1995      : 1000 ppm              1900    mg/m3
Pollution category    1994     : III    

 

Remarks:

Chemical Name, Ethyl Alcohol. Chemical Classification, Monohydric aliphatic alcohol. Synonyms. Ethanol, grain alcohol; fermentation alcohol; alcohol; methylcarbinol; absolute alcohol, anhydrous alcohol; ethyl hydrate; ethyl hydroxide; molasses alcohol; spirit etc

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Buffer Solution pH 7

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Product Short Description: High Purity Lab reagents Buffer Solution pH 7
Product Technical Specification:
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Palladium Chloride Solution

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Product Short Description: 30 ml bottle of PdCl2
Product Technical Specification:
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Calcium Buffer Solution

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Product Short Description: Lab Reagent
Product Technical Specification:
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EDTA Di Sodium

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Product Short Description: The Disodium salt of EDTA is the most commonly used form of this versatile organic complexing agent.
Product Technical Specification:

EDTA is most commonly used to determine hardness (i.e., Calcium and Magnesium ions) in water, where the pH must be approximately 10 and is usually controlled by adding a buffer such as Water Hardness Buffer. Water Hardness Indicator (Eriochrome Black T), Eriochrome Blue Black R, Calmagite, and Murexide are used for hardness or Calcium determinations using EDTA.

Remarks:

EDTA cas no : 6381-92-6
EDTA chemical Formula : [(HO2CCH2-)(NaO2CCH2-)N-CH2]2·2H2O

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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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Sodium Hydroxide Pellet

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Product Short Description: Sodium Hydroxide is a strong base laboratory reagent.
Product Technical Specification:

SPECIFICATION
SODIUM HYDROXIDE PELLETS (Lab GRADE)
CAUSTIC SODA PELLETS
CAS NO: 1310-73-2
NaOH: MW: 40.00

TEST SPECIFICATION
Description White, hygroscopic pellets
Identify Na: Passes test
OH: Passes test
Test solution (10% w/v; water) The solution is clear and colourless
Solubility Soluble in 1 to 10 parts of water and in alcohol
 Assay (NaOH) NLT 97.0 %
Carbonate (as Na2CO3) NMT 2 %
Chloride (CI) NMT 125 ppm
Sulfate (SO4) NMT 75 ppm
Arsenic (As) NMT 4 ppm
Iron (Fe) NMT 20 ppm
Potassium (K) Passes Test
Remarks:

Sodium Hydroxide is Extremely corrosive product. Potential symptoms of over-exposure are irritation of eyes, skin and mucous membranes, pneumonitis, eye and skin burns, temporary lose of hair etc.

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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 %

 

Remarks:
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