rock mineral collection

Acacia Powder (Gum Acacia), also known as gum arabic, is a natural gum derived from the dried exudate of Acacia trees such as Acacia senegal and Acacia seyal. It is widely used in laboratory, food, pharmaceutical, and cosmetic applications for its excellent solubility, stabilizing, and emulsifying properties.​ Description and Properties Appearance: Fine, neutral-scented, odorless powder, glassy or pale yellow in color​ Solubility: Highly soluble in water, forming clear solutions; insoluble in oils​ Composition: Composed primarily of polysaccharides (arabinose, galactose, rhamnose, glucuronic acid) and calcium, magnesium, potassium salts​ pH: Typically 4.1-5.0 in solution​ Viscosity: Solutions are Newtonian, with viscosity independent of shear rate, and viscous only at high concentrations​ Applications Used in laboratories as a stabilizer in emulsions and suspensions, and as a protective colloid​ Serves as a binder in pharmaceuticals, tablet coatings, and controlled-release formulations​ Acts as an additive in cosmetics for texture and stability, in food for thickening and emulsification, and in inks and adhesives for its preserving and sensitizing action​ Safety and Handling Safe for handling in laboratory environments, with common precautions including the use of gloves and avoiding inhalation of dust​ Should be stored in a cool, dry place, protected from contamination and moisture​ Gum Acacia remains a versatile and trusted material for stabilization, thickening, and emulsification across scientific and industrial domains.​

A.S. Blue Ink Powder is a synthetic blue dye in fine powder form, primarily used for preparing blue ink for laboratory, educational, and industrial applications. The powder is typically very soluble in water and alcohol, allowing easy formulation of ink solutions that range from pure blue to blue-black shades, suitable for writing, printing, or indicator use.​ Typical Specifications Appearance: Blue powder​ Solubility: Highly soluble in water and alcohol​ Application: Used to make blue ink for pens, printing, and laboratory testing; also as a colorant for textiles and in chemical indicators​ Storage: Should be sealed tightly, stored in a cool and dry environment, and kept away from other chemicals or heat sources to maintain quality​ Composition A typical blue ink powder may contain synthetic dyes such as Acid Blue 93, with possible additives like emulsion polymerization resins, dispersants, and stabilizing agents to ensure stable coloration and proper dispersion in ink preparations.​ Safety and Handling Wear protective clothing (masks, gloves, anti-static gear) during handling​ Do not mix with other chemicals to avoid reactions​ Install explosion-proof ventilation systems in workplaces​ This powder is a convenient raw material for users needing to produce consistent, vibrant blue inks for various educational and laboratory uses.​

2-Naphthol extra pure is a high-purity, laboratory-grade version of 2-naphthol (also called beta-naphthol), widely used in organic synthesis, dye/pigment manufacture, and chemical research.​ Chemical Properties Chemical name: 2-Naphthol (β-naphthol, Naphthalen-2-ol) Molecular formula: C 10 H 8 O C 10 H 8 O​ CAS Number: 135-19-3​ Molecular weight: 144.17 g/mol​ Physical appearance: White glossy flakes, crystalline solid, or white powder​ Assay (Purity): Minimum 99% (extra pure/AR/LR grade)​ Melting point: 120–122°C​ Solubility: Negligible in water; readily soluble in alcohol, ether, chloroform, benzene, and alkaline solutions.​ Major Uses Dyes and Pigments: Essential intermediate for manufacturing azo dyes, pigments, and colorants.​ Organic Synthesis: Building block for synthesizing heterocycles (e.g., xanthenes, chromenes, furans), antioxidants, and other organic chemicals.​ Pharmaceuticals: Used to synthesize drugs like tolnaftate, naproxen, and nafcillin.​ Analytical Chemistry: Used as a reagent for chemical testing and in research applications requiring high purity.​ Safety and Handling Hazards: May cause skin/eye irritation; avoid inhalation of dust.​ Storage: Keep container tightly closed, protected from light and moisture; stable under recommended storage.​ Shelf life: Typical 3–5 years in optimal storage.

2,6-Dichlorophenol Indophenol (often referred to as DCPIP or DCIP) is a synthetic, water-soluble redox indicator and dye, widely used in analytical, biochemical, and food chemistry.​ Chemical Properties Chemical name: 2,6-Dichlorophenolindophenol (sodium salt often used in labs) Molecular formula (sodium salt): C 12 H 6 Cl 2 NNaO 2 C 12 H 6 Cl 2 NNaO 2 ​ Molecular weight (sodium salt): 290.08 g/mol​ CAS Number: 620-45-1 (sodium salt)​ Appearance: Dark blue to dark green powder or crystals; dark green (sodium salt dihydrate)​ Solubility: Water (30 g/L), alcohol (20 g/L)​ Purity (AR/ACS): 98–106% (commercial, for analysis grade)​ Major Uses Redox Indicator: Exhibits a blue color when oxidized and turns colorless (or pale yellow) when reduced.​ Vitamin C (Ascorbic Acid) Analysis: Commonly used in titration methods for quantitative estimation of ascorbic acid in food, juice, and pharmaceuticals. When ascorbic acid reduces DCPIP, the solution becomes colorless, marking the endpoint.​ Respiratory/Photosynthetic Studies: Serves as an artificial electron acceptor in experiments studying the electron transport chain in plants (photosynthesis) and mitochondrial activity.​ Biochemical Assays: Used as a substrate to measure enzyme activities, including dehydrogenases and oxidases, and as a reagent in TLC for organic acids and reducing compounds.​ Additional Features pKa: 10.5 (indicative of its behavior as an acid/base)​ Shelf life: Typically up to 5 years​ Storage: Store at room temperature, protected from light and moisture (the dye is hygroscopic)​ Safety Hazard statements: May cause eye/skin irritation; standard PPE (gloves, eye protection) is recommended.

2,4-Dinitrophenylhydrazine extra pure (DNPH) is a high-purity laboratory-grade chemical widely used as a qualitative reagent in organic chemistry, particularly for the identification of aldehydes and ketones (carbonyl compounds).​ Chemical Properties Chemical name: 2,4-Dinitrophenylhydrazine (DNPH, Brady’s reagent) Molecular formula: C 6 H 6 N 4 O 4 C 6 H 6 N 4 O 4 ​ Molecular weight: 198.14 g/mol​ CAS Number: 119-26-6​ Appearance: Orange-red to dark red crystalline powder, sometimes moist​ Purity (Assay): Minimum 99% (extra pure/reagent grade)​ Melting point: 198–202°C​ Solubility and Handling Solubility: Slightly soluble in water, soluble in alcohol, ether, and 50% sulfuric acid.​ Shelf life: Typically 5 years (60 months) if stored at room temperature (25–40°C) in a tightly sealed container.​ Safety: Hazardous if inhaled, ingested or if it comes in contact with skin/eyes.​ Shock-sensitive in dry form; often shipped and handled moistened with water.​ Use standard laboratory PPE; avoid sources of ignition and static discharge.​ Major Uses DNPH Test (Brady’s Test): Primary reagent for detecting and characterizing aldehydes and ketones by formation of brightly colored hydrazone derivatives.​ Environmental Chemistry: Used for monitoring air pollutants—especially carbonyl compounds like formaldehyde—in occupational and environmental settings.​ Chromatographic Identification: Hydrazone derivatives produced are useful for TLC, HPLC, and melting point analysis aiding compound identification.​ Structural Elucidation: Used in research for elucidating structures of various organic compounds.​

2,4-Dinitrophenylacetic acid is an organic compound and analytical reagent with the formula C 8 H 6 N 2 O 6 C 8 H 6 N 2 O 6 . It is used mainly in biochemical and analytical chemistry as a reagent, indicator, and intermediate for synthesis.​ Chemical Properties Chemical name: 2,4-Dinitrophenylacetic acid Molecular formula: C 8 H 6 N 2 O 6 C 8 H 6 N 2 O 6 ​ Molecular weight: 226.14 g/mol​ Physical form: Pale cream to pale yellow powder or needle-like crystals​ Melting point: 169–175 °C​ Density: ~1.6 g/cm³​ Major Uses Analytical Chemistry: Used as a colorimetric reagent, especially for quantifying amino acids and in acid-base titrations (it can act as both analyte and indicator).​ Biochemical Research: Investigating enzyme activities and protein interactions, contributing to the understanding of metabolic pathways.​ Pharmaceutical Development: Serves as an intermediate in pharmaceutical synthesis, e.g., in the creation of anti-inflammatory and analgesic drugs.​ Material/Dye Science: Used in the synthesis of dyes and pigments, enhancing color stability.​ Safety Hazard Statement: Irritant; may cause skin/eye irritation and respiratory issues—handle with PPE (gloves, mask, goggles).​ Flash point: ~192°C; store away from heat, light, and moisture.​ Signal word (GHS): Warning.​

1-Naphthol extra pure is a high-purity, laboratory-grade form of 1-naphthol (α-naphthol), primarily used in organic synthesis, dye manufacturing, analytical chemistry, and scientific research.​ Chemical Properties Chemical name: 1-Naphthol (α-naphthol, Naphthalen-1-ol) Molecular formula: C 10 H 8 O C 10 H 8 O CAS Number: 90-15-3​ Physical appearance: Off-white to brownish flakes or crystalline solid with a slight phenolic odor​ Molecular weight: 144.17 g/mol​ Purity/Assay: Minimum 98% (Extra Pure/LR grade)​ Melting point: 94–96°C​ Solubility and Handling Solubility: Practically insoluble in water, soluble in alcohol, ether, benzene, chloroform, and alkali solutions.​ Storage: Store in a cool, dry place away from light and moisture; product darkens on exposure to air/light.​ Safety Hazard statements: Harmful if swallowed or in contact with skin; causes skin/eye irritation; may cause respiratory irritation.​ Symbols: GHS05 (corrosive), GHS07 (irritant)​ Shelf life: 36 months if stored properly​ Major Uses Precursor in dye and pigment manufacturing, especially azo dyes.​ Analytical chemistry reagent for identifying carbohydrates (Molisch’s test) and biochemical assays.​ Starting material for organic synthesis and pharmaceutical intermediates.​