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Sr. No.
NAME OF RAW MATERIALS
PARAMETERS SPECIFIED
REQUIREMENTS
1
H-Acid M.W. =319
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Grayish moist material/Dry powder
  • 55%-65% for moist material
  • 78-80% for dry powder
  • 0.20% Max.
  • Clear solution in dilute alkali
  • Chromotropic acid 1% Max.
  • Koch acid 0.3% Max
  • Omega acid 0.3% Max.
  • All other impurities <1.5% Max.
2
 J. Acid M. W =239
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Material/Dry powder
  • 88%-90% By coupling value Min.
  • 0.20% Max.
  • Soluble in dilute alkali
  • Iso Amino G.0.20* Max.
  • Di j. Acid 0.5% Max.
  • All other impurities <1.0% Max.
3
 Ethylene Diamine M.W.=60
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Pale Yellow liquid
  • 98% Min.
  • Practically Nil
  • Miscible with water
  • 1% Max all together
4
 Cyanuric Chloride M. W=184.5
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • White crystalline powder Highly lacrymatic
  • 98% Min.
  • 0.1% in Benzene
  • Clear Solution in Benzene
  • Nil
5
 4-NAP M.W =234
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Brown Crystalline material
  • 65% Min or moist material.
  • 0.2% Max,
  • Soluble in dilute alkali forming reddish solution.
  • 1% Max.
6
 Para Amino Azobenzene 4- Sulfonic acid M.W =277
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Yellowish Crystalline material.
  • 90% Min.
  • 0.3% Max.
  • Soluble in hot dilute alkali
  • 1% Max
7.
 Aniline 2,4-Disulfonic acid M.W. =253
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Pinkish Dry Material
  • 95% Min
  • 0.2% Max
  • Water and dilute alkali
  • 1% Max all impurities
8
 Aniline 2,5-DiSulfonic acid M.W.=253
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Grayish brown material
  • 65% Min for most material
  • 0.2% Max.
  • Soluble in dilute alkali
  • 1% Max all impurities
9
 PAAB 3,4 M.W =267
Disulfonic Acid
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Reddish orange material
  • 90% Min.
  • 0.3% max.
  • Soluble in dilute alkali.
  1. Para Amino Azobenzene 0.2% max.
  2. All other impurities 0.5% Max,
10
 Diamino Azobenzene M,W = 212
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Reddish brown material
  • 60% Min for moist material
  • 0.2% Max.
  • Soluble in hot dilute alkali
  • 1% Max all impurities.
11
 Sodium Naphthionate (free acid0 M.W=223
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Pinkish moist/dry material
  • 70% Min.
  • 0.2% Max.
  • Soluble in dilute alkali
  • Naphthyl amine 0.1% Ma.
  • Others 0.2% Max.
12
 DASDSA M.W =370
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Yellow moist/dry material
  • 65% for moist material
  • 90% for dry material
  • 0.2% Max.
  • Soluble in dilute alkali
  • Di – hydro product 1% Max.
13
 Diethanolamine M.W=105
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Straw yellow viscous liquid
  • 9.8% Min
  • Practically nil
  • Soluble in water and dilute acid
  • Mono ethanolamine 0.1%
14
 Morpholine M.W.= 87
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Brownish viscous liquid
  • 98% Min
  • Practically Nil
  • Soluble in dilute acid
  • 1% Max all impurities together.
15
 PNCBOSA M.W =237.5
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Light yellowish moist material
  • 65% Min
  • 0.2% Max
  • Soluble in dilute alkali
  • 1% Max all impurities together.
16
 BDSA M.W.=344
  1. Appearance
  2. Assay
  3. Insoluble
  4. Solubility
  5. Impurities
  • Yellowish moist material
  • 65% Min
  • 0.2% Max
  • Clear solution in dilute alkali
  • Metanilic acid 0.5% Max
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