1.12533

Sigma-Aldrich

Dodecyl sulfate sodium salt

for biochemistry and surfactant tests

Synonym(s):
Dodecyl sulfate sodium salt, Lauryl sulfate sodium salt, SDS, Dodecyl sodium sulfate
Empirical Formula (Hill Notation):
C12H25NaO4S
CAS Number:
Molecular Weight:
288.38
MDL number:
EC Index Number:
205-788-1

storage conditions

Store at +15°C to +25°C.

Quality Level

potency

1427 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit)

pH

6-9 (20 °C, 10 g/L in H2O)

mp

204-207 °C

transition temp

flash point >150 °C

solubility

>130 g/L

density

1.1 g/cm3 at 20 °C

bulk density

490‑560 kg/m3

storage temp.

15-25°C

InChI

1S/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1

InChI key

DBMJMQXJHONAFJ-UHFFFAOYSA-M

Related Categories

Analysis Note

Assay (two-phase titration): ≥ 99
Homologue purity C-12: ≥ 98
Identity (IR-spectrum): passes test
Solubility (Ethanol): passes test
Absorbance A (220-350 nm; 3 %; 1 cm; water): ≤ 0.10
Chloride (Cl): ≤ 0.01 %
Phosphate (PO₄): ≤ 0.0001 %
Heavy metals (as Pb): ≤ 0.0005 %
Water (according to Karl Fischer): ≤ 1

Certificate of Analysis

Certificate of Origin

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