Sodium dodecyl sulfate

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2022-12-17

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Product description

[Alias] foaming powder; sodium lauryl sulfate; sodium lauryl sulfate; sodium dodecyl sulfate, sodium dodecyl sulfate

[English name] Sodium dodecyl sulfate.

[Abbreviation] SDS

[CAS No.] 151-21-3

[Molecular formula] ROSO3Na R = C12alkyl, C12-C14alkyl

[Molecular weight] 288.38 (R = C12alkyl), 296 (R = C12-C14alkyl)

[Grade] It can be divided into industrial grade (GB/T15963-2008), toothpaste grade (QB/T2900-2012), latex grade and reagent grade according to application fields and standards.

[Technical Indicators]

1. Industrial grade

Indicator Name/Indicator Value		Powdered Products (F)			Needle Products (Z)
		Level 92	Level 93	Level 95	Level 92	Level 95
Appearance		White or light yellow powder, without caking			White or yellowish needle-like, without lumps
Active matter,% ≥		92.0	93.0	95.0	92.0	95.0
Free oil,% ≤		1.2	1.2	1.2	2.0	1.5
Inorganic salt,% ≤	Sodium sulfate	5.8	4.8	2.5	4.8	2.5
	Sodium chloride	0.15	0.15	0.15	0.15	0.15
Moisture,% ≤		2.0	2.0	2.0	4.0	3.0
PH value (1% aqueous solution)		7.5-9.5			7.5-10
Whiteness (WB), ≥		90

2. Toothpaste grade

Indicator Name/Indicator Value		Toothpaste Grade (Y)
		(I) Level	(II) Level	(III) Level
Appearance		White or yellowish powdery or needle-like, without caking
Active matter,% ≥		95.0	93.0	93.0
Free oil,% ≤		1.2	1.2	1.2
Inorganic salt,% ≤	Sodium sulfate	2.5	3.2	4.0
	Sodium chloride	0.15	0.15	0.15
Moisture,% ≤		2.0	2.0	3.0
PH value (1% aqueous solution)		8-9.3	8-9.3	8-10
Whiteness (WB), ≥		90
Foaming capacity/mm, ≥		180
Heavy metal (as Pb)/ (mg/Kg), ≤		15
Arsenic content (as As)/ (mg/Kg), ≤		3
Total bacterial count/ (CFU/G), ≤		100
Total number of molds and yeasts/ (CFU/G), ≤		100
Fecal coliforms/G		Not to be detected
Pseudomonas aeruginosa/G		Not to be detected
Staphylococcus aureus/G		Not to be detected

3. Latex grade

Indicator Name/Indicator Value		Latex grade (powder, needle, liquid)
		Aggregate grade	Seed level	Liquid K12
Appearance		White or yellowish powdery or needle-like, without caking		Light yellow transparent liquid
Active matter,% ≥		94.0	92	28.5-30.5
Free oil,% ≤		0.8-1.0	1.5-2.0	1.5
Inorganic salt,% ≤	Sodium sulfate	3.0	3.0	1.5
	Sodium chloride	0.15	0.15	0.05
Moisture,% ≤		3.5	3.5	-
PH value (1% aqueous solution)		8-10		7.5-9.5
Whiteness (WB), ≥		90		-
Color Klett (30% active), ≤		-		60

4. Reagent grade

Indicator Name/Indicator Value		Reagent grade
		Level 99%	Level 97%
Appearance		White flaky crystals	White powder
Solubility (1%, alcohol)		Completely dissolved	-
Solubility (10%, aqueous solution)		Completely dissolved	-
Chroma APHA (20%, deionized water), ≤		15	-
Active matter (%), ≥		99 (on dry basis)	97
Petroleum ether soluble matter (%), ≤		0.2	1.0
Sodium sulfate (%), ≤		0.5	1.5
Sodium chloride (%), ≤
Moisture (%), ≤		1.0	2.0
PH value (1% aqueous solution)		6.0-8.0	6.0-11
Phosphate, ≤		1ppm	-
Lead (Pb), ≤		2ppm	-
Iron (Fe), ≤		1ppm	-
Nitrogen, ≤		5ppm	-
Arsenic (As), ≤		0.1ppm	-
Fraction content (%), ≥		99.0
Absorbance (3%, deionized water)	230nm，≤	0.4	-
	260nm，≤	0.1	-
	280nm，≤	0.1	-
	410nm，≤	0.01	-

[Performance and Applications]

This product is a white or yellowish sticky substance, commonly used in detergents and textile industry. Belon to an anionic surfactant.It is easy to dissolve in water, has good compatibility with anions and nonions, and has good emulsification, foaming, penetration, decontamination and dispersion properties. It is widely used in toothpaste, shampoo, shampoo cream, shampoo, washing powder, liquid washing, cosmetics and plastic demoulding, lubrication, pharmaceutical, papermaking, building materials, chemical and other industries.

(1) Used as detergent and textile auxiliaries, also used as toothpaste foaming agent, mine fire extinguishing agent, emulsion polymerization emulsifier, wool detergent, etc.

(2) Used as anionic surfactant, emulsifier and foaming agent

(Use 3) GB 2760-96 stipulates that it is a processing aid for food industry. Blowing agent; emulsifier; anionic surfactant. Used for cake, beverage, egg white, fresh fruit, fruit juice beverage, edible oil, etc.

(4) It is used as an emulsifier for drugs, cosmetics and synthetic resins. Foaming agent for toothpaste and fire extinguisher. Used as a detergent for fine silk and wool fabrics. Flotation agent for metal beneficiation.

(5) Used as detergent and textile auxiliaries, also used as toothpaste foaming agent, fire extinguishing foam liquid, emulsion polymerization emulsifier, pharmaceutical emulsion dispersant, shampoo and other cosmetics, wool detergent.

(Use 6) Biochemical analysis, electrophoresis, ion pair reagent

[Contact] 13754794411 Manager Zhou

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