1. Product Overview of CAS 13601-19-9 Sodium ferrocyanide anhydrous

Sodium Ferrocyanide (Anhydrous), also known as Tetrasodium Hexacyanoferrate(II), Yellow Prussiate of Soda (anhydrous grade). It is a stable inorganic coordination complex. Compared with decahydrate sodium ferrocyanide (CAS:14434-22-1), anhydrous type contains no crystal water, lower moisture content, superior anti-caking performance and stable storage property. The cyanide group is tightly coordinated with iron ions; free cyanide is not easily released under normal temperature and neutral environment. Widely applied as food anti-caking additive, pigment raw material, metallurgical and electroplating auxiliary chemical.

2. Basic Chemical Information

Product Name: Sodium Ferrocyanide (Anhydrous)

Aliases: Tetrasodium Hexacyanoferrate(II), Yellow Prussiate of Soda

CAS No.: 13601-19-9

EINECS No.: 237-081-9

Molecular Formula: Na4Fe·(CN)6

Molecular Weight: 303.91

Appearance: Pale lemon-yellow crystalline powder or granular crystal

Odor: Odorless

Solubility: Soluble in water; practically insoluble in ethanol and organic solvents

Thermal Stability: Stable below 400℃; decomposes above 435℃

✅ CAS 13601-19-9 = Anhydrous Sodium Ferrocyanide (No crystal water)

✅ CAS 14434-22-1 = Sodium Ferrocyanide Decahydrate (Contains 10 crystal water)

3. Core Product Features

- Anhydrous formula, low free moisture, not easy to deliquesce or agglomerate during long-distance sea transportation

- Excellent anti-caking function for refined salt, sea salt and industrial granular materials

- High crystal purity, low heavy metal and insoluble impurities, consistent batch quality

- Raw material to synthesize Prussian blue pigment, sodium ferricyanide and other cyanide coordination salts

4. Main Applications

- Food Industry (Food Grade E535)

  Anti-caking agent for edible salt, sea salt, preventing salt crystal adhesion and caking during storage and transportation.

- Coating & Ink Industry

  Key raw material for manufacturing iron blue (Prussian blue) pigments used in paints, printing inks and water-based coatings.

- Metallurgy & Heat Treatment

  Auxiliary agent for steel surface carburizing treatment, metal surface cleaning & anti-tarnish treatment.

- Fine Chemical Industry

  Starting material for producing sodium ferricyanide and other ferrocyanide series products.

- Other Fields 

  Photographic auxiliary chemical, mineral flotation reagent, wastewater heavy metal chelating agent.

5. Typical Specifications Food Grade / Industrial Anhydrous Grade

Assay (as Na4Fe·(CN)6): ≥99.0%

Moisture: ≤0.50%

Water Insoluble Matter: ≤0.01%

Chloride (Cl⁻): ≤0.02%

Sulfate (SO4): ≤0.02%

Heavy Metals (Pb): ≤10 ppm

6. Packing & Storage

Packing: 25kg composite woven bag with PE inner liner; 1200kg jumbo FIBC bulk bag available.

Storage: Store in cool, dry, ventilated warehouse; keep hermetically sealed to avoid moisture absorption. Isolate from strong mineral acids and strong oxidants.

Shelf Life: 24 months under proper sealed storage.

7. Safety & Transportation

UN 3077, Class 9 Environmentally Hazardous Substance, Packing Group III.