Naphthalene-2-sulfonic acid hydrate 90%, Technical Grade

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Synonyms: 2-Naphthalenesulphonic acid hydrate2-Naphthalenesulfonic acid hydrate

AC42869-0050 AC42869-0250
102774-470EA 21.1 USD
102774-470 102774-562
Naphthalene-2-sulfonic acid hydrate 90%, Technical Grade
Naphthalene-2-sulfonic acid hydrate

Appearance: Grey Powder

Formula: C₁₀H₈O₃S·xH₂O
MW: 208.231 g/mol (anhy)
Density: 1.44 g/cm³
Storage Temperature: Ambient
MDL Number: MFCD00149271
CAS Number: 76530-12-6
UN: 2585
ADR: 8,III

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Specification Test Results

Appearance Grey Powder
Infrared spectrum Conforms
HPLC ≥88 %
Loss on drying ≤0.5 % (1 g, 105 °C, 16 h)
Sulfated ash ≤0.1 % (1 g, 600 °C)
Appearance of solution (EP) Passes test
Identification Passes test (EP, USP)
Related substances ≤0.4 % (sum of impurities A and B)
Related substances ≤0.2 % (impurity C)
Related substances ≤0.15 % (impurity D)
Related substances ≤0.10 % (unspecified impurities)
Related substances ≤0.5 % (total impurities)
Specific optical rotation +52.5° to +53.3° (20 °C, 589 nm) (C=10,H2O/dilute NH3) (Anhydrous substance)
Acidity (USP) Passes test
Color of solution (USP) Passes test
Chloride (Cl) ≤0.018 %
Sulfate (SO4) ≤0.025 %
Arsenic (As) ≤1 µg/g
Soluble starch, sulfite ≤15 ppm (EP)
Soluble starch, sulfite (USP) Passes test
Dextrin (EP, USP) Passes test
Conductivity ≤20 µS/cm

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