Sulphur Brown 4 is a brown, hydroscopic powder that exhibits different color properties when exposed to various chemical solutions. It appears dark brown in hydrochloric acid precipitation and turns blue light green in concentrated sodium hydroxide solution. Sulphur Brown 4 is primarily used for dyeing purposes in the textile industry.
1326-90-5
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Basic information
- Product Name: Sulphur Brown 4
- Synonyms: Sulphur Brown 4;Dark Brown GD;Sulphur Dark Brown GD.;Thionol Black Brown R;C.I. 53210;Diresul Brown R;Pirocard Brown CGN;Sofral Brown CGN
- CAS NO:1326-90-5
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: Sulphur Brown 4(CAS DataBase Reference)
- NIST Chemistry Reference: Sulphur Brown 4(1326-90-5)
- EPA Substance Registry System: Sulphur Brown 4(1326-90-5)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 1326-90-5(Hazardous Substances Data)
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1326-90-5 Usage
Uses
Used in Textile Industry:Sulphur Brown 4 is used as a dye for cotton, hemp, viscose, and vinylon/cotton blended fabrics. It is also sometimes used in leather dyeing due to its ability to produce a range of brown shades.
Standard:
The performance standards of Sulphur Brown 4 in terms of acid resistance, alkali resistance, light fastness, fulling, perspiration fastness, and soaping are as follows:
Acid Resistance: Moderate (ISO 4)
Alkali Resistance: Severe (ISO 3)
Light Fastness: 3-4 (ISO)
Fulling: 4-5 (ISO)
Perspiration Fastness: 4 (ISO)
Soaping: 3-4 (ISO)
These standards indicate the compound's resilience and performance under various conditions, making it a suitable choice for dyeing applications in the textile industry.
Preparation
coarse Cresol or m-Cresol and Sodium polysulfide in 270 ~ 275 ℃ calcination, add or do not add Copper sulfate monohydrate all can.Standard
Acid ResistanceModerate
SevereISO
4Check Digit Verification of cas no
The CAS Registry Mumber 1326-90-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,2 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.Calculate Digit Verification of CAS Registry Number 1326-90:
(6*1)+(5*3)+(4*2)+(3*6)+(2*9)+(1*0)=65
65 % 10 = 5
So 1326-90-5 is a valid CAS Registry Number.
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Sulphur Brown 4
