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Sodium sulfate Structure

Sodium sulfate

Chemical Properties

Melting point 884 °C (lit.)
Boiling point 1700°C
Density  2.68 g/mL at 25 °C (lit.)
refractive index  1.484
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 1 M at 20 °C, clear, colorless
form  powder (fine)
Specific Gravity 2.68
color  White
PH 5.2-8.0 (50g/l, H2O, 20℃)
PH Range 5.2 - 9.2
Water Solubility  18.5 mg/L
λmax λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.015
Sensitive  Hygroscopic
Merck  14,8680
Stability Stable. Incompatible with strong acids, aluminium, magnesium, strong bases. Hygroscopic.
CAS DataBase Reference 7757-82-6(CAS DataBase Reference)
FDA 21 CFR 186.1797; 172.615; 173.310; 177.1200
Indirect Additives used in Food Contact Substances SODIUM SULFATE, ANHYDROUS
EWG's Food Scores 1
ATC code A06AD13,A12CA02
NIST Chemistry Reference Sodium sulfate(7757-82-6)
EPA Substance Registry System Sodium sulfate (7757-82-6)


Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25
WGK Germany  1
RTECS  WE1650000
HS Code  28331100
Hazardous Substances Data 7757-82-6(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
NFPA 704:
1 1

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