1.13760

Sodium dodecyl sulfate

LAB

• Synonym(s): Dodecyl sulfate sodium salt, Lauryl sulfate sodium salt, SDS, Dodecyl sodium sulfate
• Empirical Formula (Hill Notation): C₁₂H₂₅NaO₄S
• CAS Number: 151-21-3
• Molecular Weight: 288.38
• MDL number: MFCD00036175
• UNSPSC Code: 12352107
• EC Index Number: 205-788-1
• NACRES: NA.21

Properties

• Product Name: Dodecyl sulfate sodium salt, LAB
• Quality Level: 100
• form: powder
• 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
• solubility: >130 g/L
• density: 1.1 g/cm³ at 20 °C
• bulk density: 490‑560 kg/m³
• storage temp.: 15-25°C
• SMILES string: [Na+].[S](=O)(=O)([O-])OCCCCCCCCCCCC
• 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

Description

Analysis Note

Assay (two-phase titration): ≥ 99.0 %
Identity (IR-spectrum): passes test
Absorbance A (220-350 nm; 3 %; 1 cm; water): ≤ 0.1
Chloride (Cl): ≤ 0.01 %
Phosphate (PO₄): ≤ 0.0001 %
Heavy metals (as Pb): ≤ 0.0005 %
Water (according to Karl Fischer): ≤ 1

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302 - H315 - H318 - H412
• Precautionary Statements: P264 - P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): 338.0 °F
• Flash Point(C): 170 °C