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

Supplier: Thermo Scientific
Danger

Synonyms: 2-Naphthalenesulphonic acid hydrate

428690050 428690250
ACRO428690050EA 38.6 GBP
ACRO428690050 ACRO428690250
Naphthalene-2-sulphonic acid hydrate 90%, Technical Grade
Naphthalene-2-sulphonic 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 ≤0.5 % (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 (USP) Passes test
Dextrin (EP, USP) Passes test
Conductivity ≤20 µS/cm

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