Polyaluminium Ferric Chloride

Polyaluminum ferric chloride (PAFC, also known as composite aluminum ferric chloride) appears as a yellowish-brown liquid or as yellowish-brown to reddish-brown granular powder solid.

Product Introduction

Polyaluminum ferric chloride (PAFC, also known as composite aluminum ferric chloride) appears as a yellowish-brown liquid or as yellowish-brown to reddish-brown granular powder solid. Its product specifications comply with HG/T5359-2018, "Water Treatment Agent Polyaluminum Ferric Chloride". This composite coagulant, formed through the copolymerization of aluminum and iron salts, exhibits strong adsorption capacity, excellent coagulation performance, large flocculation, rapid sedimentation, and good purification efficiency.Iron is a high-valent iron, which forms a multinuclear conjugate after hydrolysis. Liquid products are brown or red-brown transparent bodies, solid products are brown, red-brown powder or crystals. This product is developed on the basis of in-depth research on the hydrolysis and coagulation mechanism of polyaluminum chloride and iron oxide, aluminum salt and iron salt coagulant. The form of iron ions has been significantly improved, and the degree of polymerization has also been greatly improved. This product overcomes the difficulty of water purification at low temperature and low turbidity. Therefore, its water purification effect is significantly better than general water purification products.

Characteristics of polyaluminum ferric chloride:

1. At room temperature, it has stable chemical properties and will not deteriorate after long-term storage. The solid particles are easy to absorb moisture, but do not deteriorate, and are non-toxic and harmless.

2. The hydrolysis speed and hydrolysis process are not affected by temperature, especially when dealing with high turbidity water and low temperature and low turbidity water, the reaction is fast; the alum blooms formed in the water have a large proportion, dense alum blooms, rapid sedimentation, and filterability Good; can improve the utilization rate of equipment, consume less, and lower the cost of water production.

3. Adapt to a wide range of water pH, PH4-14, but the best treatment value range is 6-8.

4. Applicable to the treatment of various drinking water sources and industrial water sources stipulated by the state, and the turbidity can be handled.

5. The effect of removing and decolorizing SS, BOD, COD in water is higher than that of PAC treatment.

6. The efficiency of removing arsenic, iron, manganese and other heavy metals, silicon, fluorine, organic matter and algae in raw water is much higher than that of PAC, which can improve the quality of drinking water.

Product Usage

This product is widely used in the treatment of domestic drinking water, industrial water, domestic water, domestic sewage and industrial sewage. Among them, the purification treatment effect of low temperature and low turbidity water is particularly obvious. Alkaline additives or other coagulation aids can be omitted. The purification treatment of drinking water and various industrial water has an effect that other coagulants can't match. It is suitable for tap water, papermaking, thermal power, chemical, pharmaceutical, mining, food, steel, mineral processing, tanning and other industries.

Usage and dosage

1. The solid product and normal temperature water by 1: 2.5-1: 3 (weight ratio) mixed for about 30 minutes, the drug is completely dissolved, add 30-40 times the water diluted to the required concentration after use (source water turbidity The greater the secondary dilution plus the more water).

2. Source water turbidity in the 100-500mg / L, the dosage for the amount of water per kilowatt of 5-10Kg. It is advisable to make a small test based on the water quality characteristics before use to determine the optimal dosage.

3. The best effect of poly aluminum chloride PH value of 7-9. Water temperature is too low affect the product flocculation effect.

Packaging and storage

1.Using lined with polyethylene film, jacket polypropylene plastic woven bag double packing, 25kg / bag.

2.Stored in a cool dry and ventilated place, the solid shelf life of 12 months.

Index parameter

Product rating\Index name		Execution standard(GB/T22627-2014)
		Liquid	Solid
Alumina(ALO₃content	%	8	28
Mass fraction of total iron	%	1.5-5.0	1.5-5.0
Mass fraction of ferrous iron	%	0.2	0.2
Basicity of salt	%	45-90	45-90
Denseness(Temperature 20℃)	g/cm³	1.19	--
Water insoluble content	%	≤0.5
PH(1%solution)		3.5-5.0
Mass fraction of arsenic	%	<0.0005
Mass fraction of lead	%	≤0.002
Mass fraction of cadmium	%	≤0.0002
Mass fraction of mercury	%	≤0.00002
Mass fraction of chromium	%	0.005
Mass fraction of cadmium	%	≤0.02
Mass fraction of nickel	%	≤0.001

Polyaluminium ferric chloride is an inorganic composite pulp coagulant with a new structure formed by the composite copolymerization of aluminium salt and iron salt. It can take the advantages of aluminium salt and iron salt to a certain extent, and integrate the advantages of aluminium salt and iron salt flocculants. It is a good substitute for polyaluminium chloride and polyferric, making the initial coagulation time, floc size and sedimentation rate better

than polyaluminium chloride, and the chromaticity of the effluent is better than ferric chloride, so that the efficacy can be better exerted and the raw materials can be reasonably utilized. It is in the form of yellow-brown or

brown-red powder solid, easily soluble in water, with strong adsorption and bridging properties, and the aqueous solution is slightly acidic and easy to deliquesce in the air.

1. The flocs are formed quickly, the alum flowers are dense, the sedimentation effect is good, and the adsorption is high.

2. The pH range is wide, and the pH value is best at 4-10.

3. Small dosage, good effect, and cost saving.

Parameter Category	Parameter Name	English Name	Typical Index Range	Unit	Description
Basic Performance Parameters	Aluminium Oxide (Al₂O₃) Content	Aluminium Oxide Content	26.0 - 30.0	%	A core indicator for measuring the effective aluminium component in PAFC; higher content usually means stronger flocculation effect
	Iron Oxide (Fe₂O₃) Content	Iron Oxide Content	1.0 - 5.0	%	Iron is a characteristic component of PAFC, which can enhance the treatment effect of low-temperature and low-turbidity water and improve floc density
	Basicity	Basicity	40.0 - 90.0	%	A key indicator reflecting the degree of PAFC molecular polymerization; higher basicity leads to stronger adsorption-bridging capacity and a wider applicable pH range
Purity & Impurity Parameters	Water Insoluble Matter Content	Water Insoluble Matter Content	≤ 0.3 - 1.0	%	An important indicator for measuring product purity; excessively high water-insoluble matter may cause pipeline blockage and increased effluent residue
	Arsenic (As) Content	Arsenic Content	≤ 0.0005	%	A toxic heavy metal impurity that needs strict control to avoid water pollution
	Lead (Pb) Content	Lead Content	≤ 0.001	%	A harmful heavy metal; long-term residue endangers the ecological environment and human health, so it must comply with national drinking water treatment standards
	Cadmium (Cd) Content	Cadmium Content	≤ 0.0002	%	A highly toxic heavy metal that causes serious harm to aquatic organisms and human kidneys and bones, with extremely strict limits
	Mercury (Hg) Content	Mercury Content	≤ 0.00001	%	A highly toxic heavy metal that causes nervous system damage even in trace amounts, making it a key controlled impurity
	Hexavalent Chromium (Cr⁶⁺) Content	Hexavalent Chromium Content	≤ 0.0005	%	Hexavalent chromium has strong oxidizing properties and toxicity, which damages the skin, respiratory tract and internal organs
Physical Form Parameters	Appearance	Appearance	Yellow-brown powder/granules; brown liquid	-	The solid form is convenient for storage and transportation, while the liquid form can be used without dissolution, enabling more convenient operation
	Liquid Density (20℃)	Density of Liquid (20℃)	1.15 - 1.25	g/cm³	Applicable only to liquid PAFC; it reflects the solution concentration, and density is positively correlated with the content of effective components
	Solid Moisture Content	Moisture Content (Solid)	≤ 8.0 - 10.0	%	Applicable to solid PAFC; excessively high moisture content may easily cause the product to agglomerate and deliquesce, affecting its application stability
Application Adaptation Parameters	Applicable pH Range	pH Application Range	5.0 - 9.0	-	Compared with traditional flocculants (e.g., PAC), PAFC has a wider pH adaptation range due to its iron component
	Optimal Dosage	Optimal Dosage	10 - 50	mg/L	It needs to be adjusted according to the turbidity, pH and temperature of the raw water; in practical application, it must be determined through beaker experiments