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HomeProduct name list2-Amino-3,6,8-naphthalenetrisulfonic acid

2-Amino-3,6,8-naphthalenetrisulfonic acid

  • CAS NO.:118-03-6
  • Empirical Formula: C10H9NO9S3
  • Molecular Weight: 383.37
  • MDL number: MFCD00035721
  • EINECS: 204-229-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-25 18:09:02
2-Amino-3,6,8-naphthalenetrisulfonic acid Structural

What is 2-Amino-3,6,8-naphthalenetrisulfonic acid?

Chemical properties

2-Aminonaphthalene-3,6,8-trisulfonic acid [118-03-6]. (7-aminonaphthalene-1,3,6- trisulfonic acid), C10H9NO9S3, Mr 383.36, and its disodium salts are soluble in water, but the dipotassium salt is much less soluble. Reduction with zinc dust and alkali results in 2-aminonaphthalene-3,6-disulfonic acid, and caustic fusion at 240℃ gives 2-amino-8-hydroxynaphthalene-3,6-disulfonic acid.

Production Methods

2-Aminonaphthalene-6,8-disulfonic acid is sulfonated with 65 % oleum at 125℃ for 12 h in the presence of anhydrous sodium sulfate. After quenching and liming out, the hot solution of calcium salt is basified with sodium carbonate and the resulting solution of the trisodium salt is used directly for caustic fusion to give 2-amino-8-hydroxynaphthalene-3,6-disulfonic acid.

Flammability and Explosibility

Not classified

Properties of 2-Amino-3,6,8-naphthalenetrisulfonic acid

Boiling point: 702.53℃[at 101 325 Pa]
Density  1.7995 (rough estimate)
refractive index  1.6800 (estimate)
storage temp.  2-8°C
pka -1.27±0.40(Predicted)
Water Solubility  1000g/L at 25℃
CAS DataBase Reference 118-03-6(CAS DataBase Reference)
EPA Substance Registry System 1,3,6-Naphthalenetrisulfonic acid, 7-amino- (118-03-6)

Safety information for 2-Amino-3,6,8-naphthalenetrisulfonic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 2-Amino-3,6,8-naphthalenetrisulfonic acid

2-Amino-3,6,8-naphthalenetrisulfonic acid manufacturer

Jaffs Dyechem Private Limited

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Phone:+91-7925392314
Whatsapp: +91-7925392314
product: 7-Amino-1,3,6-naphthalenetrisulfonic acid 118-03-6 98%
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Matangi Industries LLP

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Phone:+91-7940372041
Whatsapp: +91-7940372041
product: 7-Amino-1,3,6-naphthalenetrisulfonic acid 118-03-6 99%
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Maharashtra
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Aashta Ipmex

Gujarat
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Bhimani Group

Gujarat
Phone:91-8046043512
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Amar Impex

Maharashtra
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Chromex

Mumbai
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