Page 191 - CW E-Magazine (17-12-2024)

Special Report

Table 2: Select new projects for manufacture of ultrapure chemicals of ultrapure chemicals in the world,
Producer Location Ultrapure Capacity, and a number of expansion proposals
chemical ktpa and new projects are under planning/
Yamakita 30 implementation in different countries
Saga 19 including USA, Japan, South Korea,
Mitsubishi Gas Chemical Yokkaichi 12 Vietnam, and China. However, no such
China 90 project is currently in the offi ng in
India.
US Hydrogen peroxide 140
MGC Pure Chemicals Singapore 30 Specifi cations of ultrapure
America, Inc. Taiwan 90 chemicals
LS MnM Inc.. South Korea Sulphuric acid 180 Heavy metal concentrations in the
Hydrogen peroxide ultrapure chemicals are extremely low,
OCI Company Ltd. South Korea 85 measured in parts per billion or parts
Phosphoric acid per trillion.
26
Advanced cleaning methods like
Zhejiang Morita New Hydrofl uoric acid 50 distillation, sublimation, fi ltration and
Materials Co. Ltd. China Ammonium 15 others are used in the production pro-
hydroxide cess to reach the required level of
Formosa Tokuyama Taiwan Isopropyl alcohol 30 purity.
Advanced Chemicals Co.
GrandiT China Nitric acid 30 Recommendation
Table 3: Specifi cations of ultrapure ammonium hydroxide Since the global production of
Description Maximum Description Maximum semiconductor/electronic products are
steadily increasing and India is also
value, ppm value, ppm taking steps to boost production, the
Particles > 0.5 µm 250 p/ml Lithium (Li) 0.01 Indian and export market for ultrapure
Non-volatile matter 10 Magnesium (Mg) 0.05 chemicals is an attractive option for
Silver (Ag) 0.01 Manganese (Mn) 0.01 investment.
Aluminium (Al) 0.05 Molybdenum (Mo) 0.01
Arsenic, antimony (as As) 0.05 Sodium (Na) 0.2 A number of industrial chemi-
Arsenic (As) 0.01 Nickel (Ni) 0.01 cals are produced in India, and
these can be purified to ultra-purity
Gold (Au) 0.02 Lead (Pb) 0.01 levels.
Boron (B) 0.01 Platinum (Pt) 0.02
Barium (Ba) 0.01 Antimony (Sb) 0.01 Report
Beryllium (Be) 0.01 Tin (Sn) 0.02 Nandini Consultancy Centre has
Bismuth (Bi) 0.02 Strontium (Sr) 0.01 released an introductory report on
Calcium (Ca) 0.1 Titanium (Ti) 0.01 the subject with the objective of pro-
Cadmium (Cd) 0.01 Thallium (Tl) 0.02 viding broad understanding on the
demand and technology aspects of
Cobalt (Co) 0.01 Vanadium (V) 0.01 ultrapure chemicals.
Chromium (Cr) 0.01 Zinc (Zn) 0.05
Copper (Cu) 0.01 Zirconium (Zr) 0.01 Ultrapure chemicals covered in
Iron (Fe) 0.05 Carbonat 10 the report include ammonium hydro-
Gallium (Ga) 0.01 Chloride (Cl) 0.5 xide, hydrochloric acid, hydrofl uoric
Germanium (Ge) 0.05 Phosphate (PO ) 0.2 acid, hydrogen peroxide, isopropyl
alcohol, nitric acid, phosphoric acid,
4
Indium (In) 0.01 Silicate (as SiO ) 0.5 phosphorus oxychloride, sulphuric
2
Potassium (K) 0.1 Sulphate (SO ) 2 acid, and water.
4
Chemical Weekly December 17, 2024 191

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