Ferric chloride CAS#7705-08-0
High Solubility : Easily dissolves in water, methanol, ethanol, acetone, and ether.
Versatile Applications : Used as a water treatment agent, mordant, catalyst, chlorinating agent, and for manufacturing iron salts.
Unique Optical Properties : Exhibits pomegranate red under transmitted light and metallic green under reflected light.
Broad Solvent Compatibility : Soluble in multiple solvents (e.g., liquid sulfur dioxide, aniline), enhancing usability in diverse processes.
Product Overview: Ferric Chloride (CAS 7705-08-0)
Ferric chloride appears as black-brown hexagonal crystals, exhibiting unique optical properties: pomegranate red under transmitted light and metallic green under reflected light. It boasts exceptional solubility, readily dissolving in a wide array of organic solvents including water, methanol, ethanol, acetone, and ether. It is also soluble in liquid sulfur dioxide, phosphorus tribromide, phosphorus oxychloride, ethylamine, and aniline, yet remains insoluble in glycerol. Primarily utilized as an effective water treatment agent, it also serves critical functions as a mordant, catalyst, chlorinating agent, and essential precursor for manufacturing other iron salts.
Parameters
Melting point | 304 °C(lit.) |
Boiling point | 316 °C |
density | 2,804 g/cm3 |
bulk density | 1000kg/m3 |
vapor density | 5.61 (vs air) |
vapor pressure | 1 mm Hg ( 194 °C) |
refractive index | n20/D1.414 |
Fp | 316°C |
storage temp. | Store below +30°C. |
solubility | H2O: soluble |
form | powder |
color | Yello w |
Specific Gravity | 2.804 |
PH | 1 (200g/l, H2O, 20℃) |
Water Solubility | 920 g/L (20 ºC) |
Sensitive | Hygroscopic |
Crystal Structure | BiI3 type |
crystal system | Three sides |
Merck | 14,4019 |
Space group | R3 |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.6060.6061.74190901200.5529 |
Exposure limits | ACGIH: TWA 1 mg/m3 |
Stability: | Stable. Very sensitive to moisture. Incompatible with strong oxidizing agents; forms explosive mixtures with sodium, potassium. Hygroscopic. |
CAS DataBase Reference | 7705-08-0(CAS DataBase Reference) |
NIST Chemistry Reference | Ferric chloride(7705-08-0) |
EPA Substance Registry System | Ferric chloride (7705-08-0) |
Safety Information
Hazard Codes | C,Xn,Xi |
Risk Statements | 41-38-22-34-37/38-10-36 |
Safety Statements | 26-39-45-36/37/39 |
RIDADR | UN 2582 8/PG 3 |
WGK Germany | 1 |
RTECS | LJ9100000 |
TSCA | Yes |
HS Code | 2827 39 20 |
HazardClass | 8 |
PackingGroup | III |
Hazardous Substances Data | 7705-08-0(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 316 mg/kg |
Ferric Chloride (CAS 7705-08-0): Multi-Industry Applications
As a cornerstone chemical in 2026, Ferric Chloride provides reliable performance in everything from environmental protection to advanced synthesis. It is the go-to solution for large-scale water purification and wastewater management. In the laboratory, it offers high sensitivity as an analytical indicator and TLC developer.
Industrially, it facilitates the production of essential iron salts, pharmaceuticals, and high-quality pigments. Whether used as a mordant in the textile industry, an etchant in the printing sector, or a nutritional fortifier in early-life nutrition, Ferric Chloride ensures consistency and efficacy. Its role as a catalyst in organic synthesis and a leaching agent in mining underscores its diverse utility in modern manufacturing.
