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Sulphur Powder Extra Pure
LABORATORY GRADE

Sulphur black Extra Pure

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Sulphur Black Extra Pure is a high-quality sulfur-based black dye widely used in the textile industry for dyeing cellulose fibers such as cotton. It produces a deep, rich black color with excellent wash and light fastness. It is also utilized in leather dyeing, printing inks, and various industrial applications requiring durable black pigmentation. Sulphur Black is typically supplied as a fine powder or granules and requires alkaline conditions for effective dyeing. Proper handling to avoid dust inhalation and storage in a dry, cool environment is essential to maintain product quality.

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Description

Sulphur black Extra Pure

PRIMARY USES

Analytical Reagent & Laboratory Applications:
 • Used as a staining agent in histological and microbiological studies for coloring tissues and cells
 • Employed for microscopic analysis requiring black coloration of biological samples

Textile & Dyeing Industry:
 • Major dye for cotton and other cellulose fibers, imparting a rich black color
 • Used extensively in fabric dyeing for garments, upholstery, and industrial textiles
 • Provides good wash and light fastness in dyed materials

Printing Industry:
 • Utilized as a pigment in inks and printing pastes for textiles and paper

Leather Processing:
 • Applied in leather dyeing to achieve deep black shades

SECONDARY USES

Coatings and Plastics:
 • Used as a pigment to provide black coloration in coatings, plastics, and rubber products

Paper and Packaging:
 • Employed in paper and packaging industries for black pigmentation

PRODUCT KEY FEATURES
  1. Basic Identification Attributes
     • Chemical Name: Sulphur Black
    • CAS Number: 1327-65-5
    • HS Code: 3204.17.00
    • Molecular Formula: Variable complex polymeric sulfur dye
    • Synonyms:

  • Sulfur Black 1
  • Sulfur Black dye
  1. Physical & Chemical Properties
     Physical State: Powder or granules
    • Color & Odor: Black, slight sulfur odor
    • Melting Point: Decomposes on heating
    • Density: Approximately 1.4 g/cm³ (varies by batch)
    • Solubility:

  • Insoluble in water
  • Soluble in alkaline solutions and hot sodium sulfide solutions during dyeing process
    • pH Level: Neutral to alkaline in aqueous dispersions
    • Vapor Pressure: Not applicable
    • Flash Point: Not flammable
    • Stability: Stable under normal storage
  1. Safety & Hazard Attributes
     Hazard Class (GHS Classification):

  • May cause skin and eye irritation
  • Possible respiratory sensitizer
    • NFPA Ratings:

  • Health: 1
  • Flammability: 0
  • Reactivity: 0
    • Exposure Limits:

  • No specific OSHA PEL or ACGIH TLV; general dust exposure limits apply
    • Reactivity:

  • Stable under normal conditions
  • Avoid contact with strong oxidizers
  1. Storage & Handling Attributes
     Storage Conditions:

  • Store in a dry, cool, well-ventilated place
  • Keep container tightly closed
    • Incompatible Materials:

  • Strong oxidizers
    • Container Type:

  • Sealed plastic or fiber drums
    • Shelf Life:

  • Stable for several years if stored properly
    • Special Handling Requirements:

  • Use gloves, dust mask, and eye protection to avoid irritation
  • Minimize dust generation
  1. Regulatory & Compliance Attributes
     Regulatory Status:

  • Approved for use in textiles and industrial applications
  • Not approved for food or pharmaceutical use
    • Transportation Restrictions:

  • Not classified as hazardous for transport
    • Waste Disposal Method:

  • Dispose according to local environmental regulations
  1. Environmental & Health Impact
     Ecotoxicity:

  • Low toxicity to aquatic organisms when properly treated
    • Persistence in Environment:

  • Poorly biodegradable; may accumulate in sediment
    • Carcinogenicity/Mutagenicity:

  • Not classified as carcinogenic or mutagenic
    • Biodegradability:

  • Limited biodegradability
SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):
 • Wear chemical-resistant gloves and protective clothing
 • Use safety goggles or face shield
 • Use a dust mask or respirator if dust is present

Handling:
 • Avoid inhaling dust and contact with skin and eyes
 • Handle in well-ventilated areas
 • Wash hands thoroughly after handling

Storage:
 • Store in sealed containers away from moisture and incompatible materials

FIRST AID MEASURES

Inhalation:
 • Move to fresh air immediately
 • Seek medical attention if respiratory symptoms occur

Skin Contact:
 • Wash with soap and water
 • Remove contaminated clothing
 • Seek medical attention if irritation persists

Eye Contact:
 • Rinse immediately with plenty of water for 15 minutes
 • Seek medical attention promptly

Ingestion:
 • Rinse mouth thoroughly
 • Do not induce vomiting unless advised by medical personnel
 • Seek medical attention if symptoms appear

FIRE FIGHTING MEASURES

Flammability:
 • Non-flammable solid

Extinguishing Media:
 • Use water spray, foam, dry chemical, or CO₂

Hazardous Combustion Products:
 • May produce sulfur oxides and other toxic fumes upon burning

Firefighter Protection:
 • Wear self-contained breathing apparatus (SCBA) and protective clothing

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