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Tel.: +86 571 6453 7063
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Comparison between SilibaseSFT-AEO9 Nonionic Surfactant and BASF LUTENSOL A 9 N SURFACTANT

Jan 27, 2026

Good washing and wetting properties, fast dispersion speed

High biodegradability and unique foam performance

Good cleaning, heavy oil removal, dirt removal, and wax removal properties

Good compatibility, free of alkylphenol substances such as APEO

Suitable for the preparation of various household and industrial detergents

Indicator Comparison

Freezing point

SilibaseSFT-AEO9 freezing point: -6℃

BASF LUTENSOL A 9 N SURFACTANT freezing point: 22℃

Appearance (25℃)

SilibaseSFT-AEO9 Appearance at 25℃: Clear liquid

Appearance at BASF LUTENSOL A 9 N SURFACTANT 25℃: white paste

Cloud point (1% aqueous solution)

SilibaseSFT-AEO9 cloud point (1% aqueous solution): between 76.0-86.0℃

BASF LUTENSOL A 9 N SURFACTANT cloud point (1% aqueous solution): between 75.0-85.0℃

HLB

SilibaseSFT-AEO9 HLB:14.0

BASF LUTENSOL A 9 N SURFACTANT HLB:13.4

Alkali Resistance Performance

	SilibaseSFT-AEO9:	BASF LUTENSOL A 9 N SURFACTANT
Maximum alkali resistance concentration	65g/L NaOH solution	65g/L NaOH solution

Alkali resistance test method: Dissolve 1g of surfactant in 49g of a certain concentration of sodium hydroxide (10g/L or higher concentration) solution, let it sit at room temperature for 24 hours, and observe whether it floats oil, layers or floccules. Conclusion: The alkali resistance of SilibaseSFT-AEO9 is the same as that of BASF LUTENSOL A 9 N SURFACTANT

Washing Performance

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
Decontamination value of carbon black cloth R%	23.88	23.02
Decontamination value of sebum cloth R%	21.51	21.52

Test method: 30 ℃, 20min, 250ppm, 120rpm, 2g/L;

Conclusion: Regarding the washing performance of carbon black cloth, SilibaseSFT-AEO9 is slightly better than BASF LUTENSOL A 9 N SURFACTANT.

Regarding the washing performance of sebum contaminated cloth, SilibaseSFT-AEO9 is similar to BASF LUTENSOL A 9 N SURFACTANT.

Alkali resistance performance

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
The maximum alkali resistance concentration	65g/L NaOH solution	65g/L NaOH solution

Alkali resistance test method: Dissolve 1g of surfactant in 49g of a certain concentration of sodium hydroxide (10g/L or higher concentration) solution, and leave it at room temperature for 24 hours. Observe whether it floats oil, separates into layers or forms flocculent substances. Conclusion: The alkali resistance performance of SilibaseSFT-AEO9 is the same as that of BASF LUTENSOL A 9 N SURFACTANT.

Washing performance

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
The decontamination value of the carbon black-soiled cloth R%	23.88	23.02
The decontamination value of the sebum-soiled cloth R%	21.51	21.52

Testing method:30C,20min,250ppm,120rpm,2g/L;

Conclusion: Regarding the washing performance of carbon black-stained fabric, SilibaseSFT-AEO9 is slightly better than BASF LUTENSOL A 9 N SURFACTANT. Regarding the washing performance of grease-stained fabric, SilibaseSFT-AEO9 is comparable to BASF LUTENSOL A 9 N SURFACTANT.

Emulsifying Properties

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
Time to separate the aqueous phase to 20 mL in the lower layer	318.15s	330.0s
Appearance
Test Method: Measure 35 mL of a 5 g/L surfactant solution into a beaker using a graduated cylinder, and add 35 mL of soybean oil to the beaker. Stir at 1000 rpm for 90 seconds, then stop stirring and pour the mixture into a 100 mL stoppered centrifuge tube. Observe the oil-water phase separation. Record the separation time when the aqueous phase reaches 20 mL. Conclusion: SilibaseSFT-AEO9 exhibits slightly better emulsifying properties than BASF LUTENSOL A 9 N SURFACTANT.

Gel Range

Moisture content (%)		SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
	10	Transparent liquid	Transparent liquid
	20	Transparent liquid	Gel
	30	Gel	Gel
	40	Gel	Gel
	50	Transparent liquid	Gel
	60	Transparent liquid	Gel
	70	Transparent liquid	Transparent liquid
	80	Transparent liquid	Transparent liquid
	90	Transparent liquid	Transparent liquid
Conclusion: The gel range of SilibaseSFT-AEO9 is narrower than that of BASF LUTENSOL A 9 N SURFACTANT.

Bubble test

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
0min	100.0mL	99.7mL
1min	98.0mL	98.7mL
3min	83.3mL	94.3mL
5min	63.3mL	86.7mL

Test conditions (in accordance with GB/T7462-1994): 1.0g/L, deionized water, 25°C. Conclusion: The foam of SilibaseSFT-AEO9 decreases faster than that of BASF LUTENSOL A 9 N SURFACTANT.

Wetting performance

	SilibaseSFT-AEO9	BASF LUTENSOL A 9 N SURFACTANT
0.15 grams per liter (in water)	32.5s	49.9s
0.5 grams per liter (in water)	26.46s	41.58s
1 grams per liter (in water)	16.63s	18.76s

Test method: Cotton fabric sheet, 25°C, water, 1% NaOH solution. Conclusion: The wetting property of SilibaseSFT-AEO9 is better than that of BASF LUTENSOL A 9 N SURFACTANT.

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Comparison between SilibaseSFT-AEO9 Nonionic Surfactant and BASF LUTENSOL A 9 N SURFACTANT