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OXIDIZING AGENT FOR SULPHUR DYES
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AVCOSON ABR is an activated oxidizing agent used in dyeing with sulphur, sulphur vat and vat dyes.
AVCOSON ABR is successfully replacing use of poisonous bi-chromates in continuous dyeing ranges.
SPECIFICATION:
Appearance |
Colourless clear liquid |
Chemical nature |
Activated bromate solution |
Compatibility |
AVCOSON ABR is not compatible with reducing substances and should not be mixed with acids. Formic Acid or acetic acid should not be used for pH adjustment. |
Density (gr/cc 25°C) |
App. 1.13 |
Ionicity |
Anionic |
pH (10% sol.) |
8 ± 0.5 |
Resistance to: Acids,Alkalis, Electrolytes , Water- hardness |
Not resistant
Resistant |
Solubility |
Miscible with water at any ratio |
Storage stability |
- Store sealed in a cool place. Do not store in direct sun. AVCOSON ABR is an oxidizing agent and is sensitive to organic substances such as wood, dust, oils, etc.
- The product solidifies at -2°C, and is fully usable after being thawed-out and stirred with a rod.
- The product does not burn, but it can increase the ignition of flammable materials.
- When properly stored, storage stability is at least 12 months.
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APPLICATION:
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Oxidation in an open width washer:
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Set oxidizing bath with:
AVCOSON ABR 2 – 5 g/l
Acetic Acid to pH = 4 – 4.53 cc/l
Treat at 70°C.
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Oxidation should be followed by a hot rinse (70°C) and a warm rinse (50°C).
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Replenish oxidation bath with:
1% AVCOSON ABR, 2% Acetic Acid. Dosing is based on the weight of the goods per unit time
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Oxidation by the exhaust process:
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a.Set bath with:
1-1.5 % AVCOSON ABR
2-3 cc/l Acetic Acid to pH = 4-4.5
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b.Start cold and heat up to 70°C.
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c.Continue oxidation for 15-20 minutes.
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d.Oxidation should be followed by a hot rinse and a cold rinse.
SAFETY:
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Undiluted AVCOSON ABR is a strong oxidizing material, which can ignite flammable products when in close touch.
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Wet or dried residues of AVCOSON ABR are strong oxidizing materials, and should be cleaned as soon as possible with a stream of water.
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AVCOSON ABR reacts violently with strong reducing agents and with acids.
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