Sodium lauryl sulfate

  • Dodecyl sodium sulfate
  • Lauryl sodium sulfate
  • Sodium dodecyl sulfate
Formula
C12H25OSO2ONa
Structure
Description
White, cream-colored or light yellow crystals, flakes or powder. Faint fatty odor.
Uses
Surface-active agent for emulsion polymerization, in metal processing, detergents & shampoo, emulsifying, foaming, wetting, dispersing agent in creams, lotion & medical preparations, foaming, wetting & dispersing agent in toothpaste, emulsifier, whipping agent & surfactant in foods.

Registry Numbers and Inventories.
CAS
151-21-3
EC (EINECS/ELINCS)
205-788-1
EC Class
harmful, irritant
R 22 36/37/38
S 26 36/37/39
RTECS
WT1050000
RTECS class
Drug; Mutagen; Reproductive Effector; Primary Irritant
Merck
12,8782
Beilstein/Gmelin
3599286
EPA OPP
79011
Swiss Giftliste 1
G-2596
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H25NaO4S
Formula mass
288.38
Melting point, °C
204 - 207
Decomposition point, °C
380
Density
1.1 g/cm3 (20 C)
Solubility in water
100 g/L
Surface tension
28 g/s2 (25 C)
Partition coefficient, pKow
1.60

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Do not breathe dust, vapor, mist, or gas. Do not get on skin or in eyes. Do not ingest or inhale.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.

Fire.
Flash Point,°C
>150
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used.
Fire potential
This material is probably combustible.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Repeated exposure may cause allergic respiratory reaction (asthma). Chronic inhalation may lead to decreased pulmonary function.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation. May cause severe allergic respiratory reaction. May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
USCG CHRIS Code
DDS
 
HS Code
2920 90 10