Vadilal Chemicals Ltd. - Calibration Gases

Industrial Gases
Speciality Gases

High Purity Gases Ammonia Argon Carbon dioxide Helium Hydrogen Nitrogen Oxygen Zero Air	Liquified Gases Liquor Ammonia Liquid Argon Liquid Carbon dioxide Liquid Nitrogen Liquid Oxygen

Hydrocarbon Gases 1-Butene 1-2 Butadiene 1-3 Butadiene Cis-2-Butene Decane Di-Ethyl-Ether Di-Methyl-Ether Ethane Ethyl Acetylene Ethylene Heptane Hexane iso-Butane iso-Butylene Methane Methyl Acetylene n-Butane Nonane Octane Pentane Propadiene Propane Trans-2-Butene Vinyl Acetylene	Rare Gases Krypton Neon Xenon Toxic Gases Carbon Monooxide Carbonyl Sulphide Hydrogen Chloride Hydrogen Sulfide Nitric Oxide Nitrogen Dioxide Sulfur Dioxide Speciality Gases Argon Research Grade Helium Research Grade Hydrogen Research Grade Nitrogen Research Grade Oxygen Research Grade Sulphur Hexaflouride

Stable, Accurate & Traceable
Customer oriented Solution

Vadilal Chemicals Ltd. offers over 30 years of experience developing pure gases, specialty gases, gas mixtures and calibration gases for all types of process control and instrument calibration applications. Our calibration mixtures and specialty gases are distributed in refillable and non-refillable cylinders since the late 1990s and since its inception Vadilal has manufactured more than 15,000 calibration gases and presently manufactures more than 4,000 cylinders per year. We offer a complete line of products, including pure gases to levels of 99.9999% purity, multi-component hydrocarbon gases & liquid mixtures for refineries, laboratory, environment monitoring, industrial hygiene, medical and special application mixtures for semiconductor and electronic applications. This filling centre is dedicated for manufacturing only pure gases and mixtures; and is geared to produce high degree precision mixtures. The laboratory is ISO 9001:2008 certified and is in the process of securing ISO 17025:2005 certification.

Our Quality and process

Precise manufacturing of calibration mixtures involves many critical steps- consideration of chemical raw material purity as well as detailed impurity characterization; calculation of phase behaviour for the calibration mixture; precise blending; traceability information; and finally, independent confirming analysis of the final calibration mixture.

1. Before starting, mixtures are first evaluated for potential phase problems (its properties)
2. Following this, the mixture is precisely blended to exact specifications on high sensitivity gravimetric balances.
3. Finally, the product is analyzed using state-of-the-art analyzers to confirm that the blended and analyzed values agree with each other according to the stated product specifications.

We produce all kind of customised mixtures:-

• mixtures of 2 to 20 components,
• Bespoke calibration gas mixtures from ppb to % concentration levels
• Gravimetrically or Analytically traceable to International Standards.
• Uncertainties from +/-1% to +/-5%
• blending tolerances ranging up to 1% relative,
• calibration uncertainties ranging up to 0,1% relative.
• Variety of cylinder sizes available, 200 bar fill pressure with British Standard (BS) valves
• Stability of gas mixtures to 1 year

Few example of Calibration MIXTURES for Petrochemical Industry

LIQUID MIXTURES

1. 50 PPM Orthoxylene (C8H10) + 50 PPM Metaxylene (C8H10) + 50 PPM Paraxylene (C8H10) + 50 PPM Ethylbenzene (C8H10) + Balance N- Decane (C10H22)

2. 10% Ethylbenzene (C8H10) + 20% Paraxylene (C8H10) + 22% Orthoxylene (C8H10) + BAL 50 PPM Metaxylene (C8H10)

3. 15% 1-Butene (C4H8) + 7% Cis-2-Butene (C4H8) + 0.5% Trans-2-Butene (C4H8) + 23% 1,3 Butadiene(C4H6) + Balance Benzene (C6H6)

4. 0.5% Propane (C3H8) + 0.5% Propylene (C3H6) + 5% Iso-Butane (C4H10) + 5% N-butane (C4H10) + 5% 1-Butene (C4H8) + 5% Iso-Butylene(C4H8) + 0.2% Propadanie (C3H4) + 5% Trans-2-Butene (C4H8) + 0.2% 1,2 Butadiene + Balance 1,3 Butadiene (C4H6)

5. 22% 1,3 Butadiene (C4H6) + 23% 1 Butene(C4H8) + 55% Benzene(C6H6)

NATURAL GAS MIXTURE

1. 8% Ethane (C2H6) + 5.6% Propane (C3H8) + 1.3% I-Butane (C4H10 )+ 1.3% N-Butane(C4H10) + 0.3% I Pentane(C5H12) + 0.3% N- Pentane (C5H12) + 0.4% N-Hexane(C6H14) + 0.3% Nitrogen (N2) + 4% Carbon dioxide (CO2) + Balance Methane (CH4)

2. 7% Ethane (C2H6) + 2.5% Propane (C3H8) + 0.5% I-Butane (C4H10) + 0.1% N-Butane (C4H10) + 0.1% I Pentane (C5H12) + 0.1% N Pentane (C5H12) + 0.1% N-Hexane (C6H14) + 0.1% Nitrogen (N2) + 5% Carbon dioxide (CO2) + 0.0025% Hydrogen Sulfide (H2S) + Balance Methane(CH4)

3. 0.5% Methane (CH4) + 0.25% Ethane (C2H6) + 0.25% Ethylene (C2H4) + 0.25% Propane (C3H8) + 0.5% Propadiene (C3H4) + 0.005% Methylacetylene (C3H4) + 0.5% I-Butane (C4H10) + 0.003% N-Butane (C4H10) + 0.005% Iso-Butylene(C4H8) + 0.005% 1-Butene (C4H8) + 0.005% Cis-2-Butene(C4H8) + 0.005% Trans-2-Butne (C4H8)+ 0.1% 1,3 Butadiene (C4H6) + Balance Propylene(C3H6).

4. 20% Hydrogen(H2) + 4% Carbon Monoxide (CO) + 4% Carbon Dioxide (CO2) + 1% Ethane(C2H6) + 1% Ethylene (C2H4) + 1% Propane(C3H8) + 1% Propylene(C3H6) + 1% Iso Butane(C4H10) + 1% N Butane(C4H10) + 1% Propadiene(C3H4) + 1% 1 Butene(C4H8) + 1% Iso Butylene (C4H8) + 1% Trans-2-Butene (C4H8) + 1% Cis-2- Butene (H4H8)+ 1% 1,3 Butadiene (C4H6)+ 1% Iso Pentane (C5H12) + 1% N Pentane(C5H12) + Balance Methane(CH4).

MULTI COMPONANT CALIBRATION GAS MIXTURE

1. 200 PPM Ethane(C2H6) + 100 PPM Propylene(C3H6) + 200 PPM Methane(CH4) + 50 PPM Propane(C3H8) + 5 PPM Acetylene(C2H2) + 100 PPM Propadiene(C3H4) + 100 PPM Trans-2-Butene(C4H8) + 50 PPM 1,3 Butadiene(C4H6) + 50 PPM 1,2 Butadiene (C4H6) + Balance Ethylene(C2H4)

2. 100 PPM Methane(CH4) + 100 PPM Ethane(C2H6)+ 200 PPM Ethylene (C2H4) + 1% Propane(C3H8) + 100 PPM Methyacetylene (C3H4) + 100 PPM Propadiene(C3H4) + 500 PPM Hydrogen (H2)+ Balance Nitrogen (N2).

3. 12% Methane (CH4) + 12 Ethane (C2H6) + 24% Ethylene (C2H4) + 9% Acetylene (C2H2) + 7.5% Ethane (C2H6) + 6% N Butane(C4H10) + 5% Iso Butane(C4H10) + 4% N Pentane((C5H12) + 4% I Pentane(C5H12) + Balance Propylene(C3H6).

4. 10% Carbon Dioxide (CO2) + 1.2% Nitrogen (N2)+0.5% Carbon Monoxide (CO) + 0.2% Ethane(C2H6) + 0.2% Propane(C3H8)+1% I Butane (C4H8)+ 0.2% N Butane(C4H8) + 0.2% I Pentane(C5H12) +0.2% N Pentane(C5H12) +0.2% N Hexane (C6H14)+65% Methane (CH4) + Balance Hydrogen(H2).

5. 30 PPM Iso Butane(C4H10) + 30 PPM N Butane(C4H10) + 50 PPM 1 Butene(C4H8) + 50 PPM Propadaine(C3H4) + 50 PPM Cis-2-Butene(C4H8) + 50 PPM Iso Butylene(C4H8) + 50 PPM Trans-2-Butene (C4H8)+ 100 PPM 1,3 Butadiene(C4H6) + 250 PPM Ethane(C2H6) + 250 PPM Ethylene(C2H4) + 500 PPM Methylactylene(C3H4) + 500 PPM Methane(CH4) + 0.5% Propane(C3H8) + Balance Propylene(C3H6) .

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