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Part of: 37071000 — Sensitizing emulsions
a85371 · 1996-08-01 — The tariff classification of 410-215g Peroxyl Sulphate and 410-1kg Peroxyl Sulphate; 415-500ml Iron Chloride, 415-1L Iron Chloride, 415-4L Iron Chloride and 415-22L Iron Chloride; 416-50ml Sensitizing Emulsion, 416-100ml Sensitizing Emulsion and 416-15g Sensitizing Emulsion; 418-500ml Photographic Chemical from Canada
The information submitted with your request indicates the following: 1. 410-215g Peroxyl sulphate and 410-1kg Peroxyl sulphate are 100% ammonium persulfate also known as diammonium peroxodisulfate. They are used for etching printed circuits. 2. 415-500ml Iron Chloride, 415-1L Iron Chloride, 415-4L Iron Chloride and 415-22L Iron Chloride are 42 degree Baume solutions of ferric chloride. They are used for etching printed circuits. 3. 416-50ml Sensitizing Emulsion and 416-100ml Sensitizing Emulsion are positive photoresist products consisting of 2-ethoxyethylacetate, N-butyl acetate, xylene, and…
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