Molecular Formula | Cl3FeH12O6 |
Molar Mass | 270.3 |
Density | 1,82 g/cm3 |
Melting Point | 37°C(lit.) |
Boling Point | 280-285°C(lit.) |
Flash Point | 280-285°C |
Water Solubility | 920 g/L (20 ºC) |
Solubility | 920g/l |
Vapor Presure | 1 mm Hg ( 194 °C) |
Appearance | purified lumps |
Specific Gravity | 1.82 |
Color | yellow-brown lumps |
Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: TWA 1 mg/m3 |
Merck | 14,4019 |
PH | 1.8 (10g/l, H2O, 25℃) |
Storage Condition | 2-8°C |
Stability | Stable. Incompatible with strong oxidizing agents. Forms explosive mixtures with sodium and potassium. Hygroscopic. |
Sensitive | Hygroscopic |
Physical and Chemical Properties | Melting Point: 37 Boiling Point: 280 - 285 |
Use | Widely used in water treatment, organic synthesis catalyst, and used in dye, pharmaceutical industry |
Risk Codes | R22 - Harmful if swallowed R38 - Irritating to the skin R41 - Risk of serious damage to eyes R34 - Causes burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
UN IDs | UN 3260 8/PG 3 |
WGK Germany | 1 |
RTECS | NO5425000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 28273300 |
Hazard Class | 8 |
Packing Group | III |
Toxicity | LD50 orally in Rabbit: 316 mg/kg |
Raw Materials | Chlorine Oxygen |
Downstream Products | 3-Chloro-4-fluoroaniline edta iron(iii) sodium salt Iron(III) chloride stevioside |
introduction | ferric chloride hexahydrate molecular formula: FeCl3.6H2O English name: Ferric chloride hexahydrate, appearance: brown-yellow crystal performance: no odor, astringent taste, strong hygroscopicity and deliquescence, deliquescence into red-brown liquid in air. It is extremely soluble in water, and the aqueous solution is strongly acidic, which can solidify protein. Soluble in ethanol, acetone, soluble in liquid sulfur dioxide, ethylamine, aniline, insoluble in glycerin, phosphorus trichloride. |
application | is mainly used as water treatment agent, printing plate making, corrosive agent for electronic circuit drawing board, chlorinating agent for metallurgical industry, oxidant and mordant for dye industry, catalyst and oxidant for organic synthesis industry, chlorinating agent, raw material for manufacturing other iron salts and pigments and for mineral processing in mines. |
preparation | preparation of sandy ferric chloride hexahydrate (FeCl3.6H2O) with anhydrous ferric chloride (FeCl3) 700 liters of pure water, 15 liters of hydrochloric acid and anhydrous ferric chloride FeCl3800kg are added to the 1000-liter enamel glass jacket reaction, stirred and dissolved, filtered with centrifuge (canvas or 747 polypropylene filter cloth); Then vacuum filtration (747 polypropylene filter cloth) to measure FeCl3 content. Based on the ambient temperature, the ingredient coefficient Θ is determined. After a large number of experiments, the applicant has verified that the ingredient coefficients θ corresponding to the ambient temperatures of 20°C, 15°C, 10°C and 5°C are 0.9, L 0, L 1 and L 2 respectively. According to the determination of the ingredient coefficient Θ, calculate the amount of pure water added, make sure that the value of Θ is adjusted between 0.9-1.20, and cool under stirring to allow it to precipitate FeCl3.6H2O sandy crystals. Finally, the centrifuge is spin dry and packed. The inner layer of the package is a polyethylene food packaging bag, the outer layer is a polyethylene bag with a thickness of 0.1mm, and the outermost is a cardboard barrel. |
toxicity | LD 900 mg/kg (rat, oral). The fatal amount of adult men is about 6g. Ferric chloride hexahydrate can combine with β-globulin in milk to form protein iron, which is easily absorbed in the body. Because of its strong acidity, it is not suitable to be added directly. It is usually added after making whey iron by action with whey, and is adjusted to 1 g whey iron containing about 4 mg of iron. The whey iron content in the above food is 1.0% ~ 1.5%. |
use | nutritional supplement (iron fortifier). Used for infant milk powder, milk-free food, etc. Mainly used as a water treatment agent, a corrosive agent for printing and plate making, an oxidant and mordant for the dye industry, a catalyst for organic synthesis, and the manufacture of other iron salts. It is widely used as a catalyst for water treatment and organic synthesis, and is also used in the dye and pharmaceutical industries. Analytical reagents, determination of arsenic, lithium, tin, selenium, vanadium, thiocyanate, ferricyanate and serum total cholesterol, etc., used in industry Photographic plate making, pigments and catalysts, etc., oxidants. |
production method | industrial production includes hydrochloric acid method and one-step chlorination method. The hydrochloric acid method adds hydrochloric acid and washed iron filings to the reactor for reaction to generate ferric chloride solution. After clarification, the chlorine gas is passed into the clear liquid for chlorination reaction to generate ferric chloride solution, and the arsenic removal agent and heavy metal removal agent are added. The solution is purified, filtered to remove impurities, and then clarified, the clear liquid is cooled and crystallized, the solid-liquid is separated and dried, and the edible ferric chloride hexahydrate is prepared, its Fe 2HCl → FeCl2 H2O2FeCl2 C12 → 2FeCl3 |
category | corrosive substance |
toxicity classification | poisoning |
acute toxicity | oral administration-rat LDL0: 900 mg/kg; Abdominal cavity-mouse LD50: 260 mg/kg (refer to azobenzene) |
flammability hazard characteristics | non-combustible; toxic iron and chloride fumes are produced at the fire site; |
storage and transportation characteristics | warehouse is low temperature, ventilated and dry; Store separately from strong oxidant and alkali metal |
fire extinguishing agent | water, carbon dioxide, dry powder, foam |
occupational standard | TWA 1 mg (iron)/m3 |
The solid product was brown crystals. The melting point is about 37 °c; The relative density is 1. 82. In the air is very easy to absorb moisture and deliquescence. The liquid product was a red-brown solution. Soluble in water, ethanol, glycerol, ether and acetone, difficult to dissolve in benzene.
iron filings or iron powder and hydrochloric acid were used as raw materials. After the reaction was completed, the crystals were cooled and crystallized to precipitate Brown yellow granular ferric chloride crystals.
used as a flocculant in drinking water and industrial water purification treatment. It has good solubility and excellent flocculation effect. Can be used for activated sludge dewatering. The pH range used was 6. 0-11.0, and the optimal pH range was 6. 0-8.4. The usual amount is 5 to 10 mg/L. The floc formed is coarse, the precipitation speed is fast, and it is not affected by temperature. It is used to treat wastewater with high turbidity, and the effect is more significant. The corrosion of ferric chloride is stronger than that of ferrous sulfate, and the equipment needs to be treated with anti-corrosion. When it dissolves in water, hydrogen chloride gas is produced, polluting the surrounding environment. In addition, ferric chloride can also be used as waterproofing agent, printing plate etchant, dye industry oxidants and mordant, organic synthesis of catalysts and the manufacture of other iron salts.
non-flammable, corrosive, can stimulate the skin, eyes. Inhalation can cause sore throat, Abdominal Pain, Diarrhea, Nausea, etc. Staff should be protected. After ingestion, the application of water to clean the mouth, drink milk. The production workshop should be well ventilated and the equipment should be sealed. In the storage and transportation, strict protection against toxic substances pollution, rain and moisture.