Didecyl Dimethyl Ammonium Chloride (DDAC)
    Technical Data Sheet

Description & Application

Didecyl Dimethyl Ammonium Chloride (= DDAC,C22H48ClN, M.W.: 362.08) commercial product is a 50-80% purity solution with water and alcohol. It can be used as emulsifier, sterilizer, antistatic and antiseptic agent and so on.


Typical Properties
CAS NUMBER:                    7173-51-5

EINECS/ELINCS:                 230-525-2

Chemical product:              Didecyl Dimethyl Ammonium Chloride

Appearance:                    Colorless to slightly yellowish liquid

Assay as DDAC:                 80.0%min.

Free Amine:                    2.0%max.

Water:                         10+/-1%

Alcohol:                       10+/-0.5%

PH of 10% water solution:      6.0 9.0

C10 content:                   90%min.

Color:                         100max.



DDAC is supplied in 180kgs net plastic drum or 1,000kgs net IBC drum. Or in ISO tank or other customer required packing.

Keep away from heat, sparks and flames. Keep container tightly closed when not in use. Avoid breathing dust, vapor, mist or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation. Remove contaminated clothing and wash thoroughly after handling.



In a cool, dry well-ventilated area or cabinet. In a tightly closed container.


Transport Information:

IMDG: Class 6.1 / UN: 2811 / Packing Group: III

IATA: Class 6.1 / UN: 2811 / Packing Group: III


Classification and Labeling:

Indication of Danger: C


R-PHRASES: 22,34

Harmful if swallowed. Causes burns.

S-PHRASES: 26,28,,36,37,39,45

S 26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S 28: In case of contact with skins, wash immediately with water and soap.

S 36/37/39: Wear suitable protective clothing, gloves and eye/face protection.

S 45: In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).