ANIODAC DSN-25

Identification & Functionality

Chemical Family

Linear Alkylbenzene Sulfonic Acid (LABSA),

Sodium Salts

Chemical Name

Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts

Industrial Additives Functions

Emulsifier

CAS No.

68411-30-3

EC No.

270-115-0

Technologies

Industrial Additives & Materials

Product Families

Industrial Additives & Materials — Processing Aids

Other Processing Additives

Applications & Uses

Applicable Processes

Emulsion Polymerization

Recommended Uses & Known Applications

ANIODAC DSN 25 is used as anionic emulsifier in emulsion polymerization to produce stable latexes of styrene/acrylate, VAM (vinyl acetate monomer) and copolymers. ANIODAC DSN 25 is used alone or in combination with other surfactant like NONIDAC 11P 30-70 or ISALCHEM 11-21.

Properties

Physical Form

Liquid

Appearance

Clear liquid

Typical Properties

	Value	Units	Test Method / Conditions
Anionic Active Matter (MW 343)	24.0-26.0	% mass	RCM 3826
Density (25°C)	1.03	g/cm³	ASTM D7042 , ASTM D4052
pH (5% active matter)	7.0-9.0	-	RCM 3645
Color (5% active matter)	max. 50	Klett	RCM 3668
Surface Tension at CMC	35	mN/m	ISO 43100
Viscosity at 25°C	1.450	cSt	ASTM D445, ASTM D7042
Sodium Sulfate Content	max. 0.5	% mass	RCM 3827
Sodium Chloride Content	max. 0.1	% mass	RCM 3837
Pour Point	max. 5	°C	ASTM D 97
Critical Micelle Concentration	580	ppm	ISO 43100

Packaging & Availability

Packaging Type

Drums

Packaging Information

ANIODAC DSN 25 is generally supplied in plastic drums.

Storage & Handling

Shelf Life

8 months

Storage and Handling

• ANIODAC DSN 25 should be stored preferably in stainless steel or fiber glass tanks.
• ANIODAC DSN 25 must be stored at temperature below 40°C. Temperature above 50°C should be avoided for prolonged time in order to minimize darkening phenomena.
• Storage tanks must be heated with water warmed at a temperature below 60°C. The use of steam to warm up the product is absolutely prohibited.
• ANIODAC DSN 25 is susceptible to microbial contamination and decomposition by microorganisms.
• ANIODAC DSN 25 is supplied containing a small amount of preservative sufficient for transport and short term storage. If the product is stored for several weeks or months it is recommended to carry out regular check of microbial content.
• Furthermore careful precautions like clean sampling vessel, sterilized water for dilution, limit prolonged or too often repeated exposure to open air, etc. are necessary to maintain microbiological purity of the product.