Hyderabad
08048036175
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Laboratory Chemicals by MNC CHEMICALS SURGICALS

Carmine

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08048036175

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Email Address mnc.naveen@gmail.com

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Address Correspondence Address: Shop No. 20, 2nd Floor, Srirama Tower, Bogulkunta, Telangana

Hyderabad, India, 500001

Description

Carmine is a bright red pigment and food colorant obtained from carminic acid, which is extracted from dried female cochineal insects and then converted into an aluminium or calcium salt.​ Source and chemistry Carmine is produced from cochineal insects (Dactylopius coccus) that live on prickly pear cacti; the dried insects contain about 17–24% carminic acid by weight.​ Carminic acid is a complex anthraquinone derivative (C₂₂H₂₀O₁₃); when precipitated with aluminium or calcium salts it forms the insoluble red lake pigment known as carmine.​ Production process To prepare carmine, dried, powdered insects are boiled in an ammonia or sodium carbonate solution, the insoluble material is filtered off, and alum is added to precipitate the red aluminium salt of carminic acid.​ Additives such as stannous chloride, citric acid, borax, gelatin, or lime may be used to adjust shade and precipitate properties, yielding tones from bright red to purplish red.​ Uses Carmine (E120, Natural Red 4) is widely used as a stable, heat- and light‑resistant red colorant in foods such as confectionery, pastries, yogurts, beverages, as well as in cosmetics and pharmaceuticals.​ It is also used historically and artistically as a fine art pigment for watercolours, textiles, and other coatings where a natural red dye is desired.​ Safety and labeling notes Carmine is generally regarded as safe as a food additive, but in rare cases it can trigger allergic reactions, including asthma or anaphylaxis, likely due to residual insect proteins.​ Because it is insect‑derived, many regulations and consumer guides require it to be explicitly declared (e.g., “carmine,” “cochineal extract,” or E120), and it is not considered suitable for vegan or some religious dietary restrictions.​

Model No. N-CH1546

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Ferrous Ammonium Sulphate Extra Pure (also known as Ammonium Iron(II) Sulfate Hexahydrate or Mohr's Salt) is a pale green to blue-green crystalline solid with the chemical formula FeSO4(NH4)2SO4·6H2O. It is supplied in extra pure grade with high chemical purity, typically 98.5% and above, suitable for analytical and research applications requiring precise and reliable chemical reagents.​ Description for Website Ferrous Ammonium Sulphate Extra Pure is a high-purity crystalline compound of ammonium, iron(II), and sulfate ions, stabilized as a hexahydrate. It is widely used as a primary standard in analytical chemistry for redox titrations due to its stability against oxidation compared to regular iron(II) salts. Its light blue-green crystals are odorless and dissolve readily in water. This reagent is also utilized in dosimetry for measuring gamma radiation exposure, nanomaterials synthesis, and medical applications for iron deficiency treatment.​ Key Features Chemical formula: FeSO4(NH4)2SO4·6H2O Appearance: Pale green to blue-green crystalline powder or crystals Purity: Extra pure grade (typically ≥98.5%) Solubility: Highly soluble in water; stable in air due to ammonium sulfate stabilization Applications: Analytical reagent for redox titrations, primary standard, dosimetry, nanomaterial synthesis, and medical use as an iron supplement Handling: Store in a cool, dry place protected from light; sensitive to air oxidation but more stable than simple ferrous sulfate​ Safety and Stability Extra pure ferrous ammonium sulfate is stable under recommended storage conditions but is sensitive to light and air over long periods. Proper storage and handling practices are recommended to maintain reagent quality.​ This description provides a professional summary suitable for product listings, catalogs, or websites targeting laboratory and industrial customers who require high-purity ferrous ammonium sulfate for precise chemical applications.​