Water Treatment - Hongding Chem Chemical Reagents Wed, 18 Jun 2025 08:36:33 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 246622208 Sodium Chlorite https://hongdingintl.com/products/sodium-chlorite/ Wed, 18 Jun 2025 07:40:44 +0000 http://www.hongdings.com/?post_type=product&p=3094 Sodium Chlorite is white to yellowish green crystalline powder or granule. It is used as bleaching agent, de-colorizer, disinfectant in food, paper & pulp, textile, water treatment, fine chemistry, leather, metal surface treatment industries.

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]]> Product Name: Sodium Chlorite
CAS No: 7758-19-2
Einecs No: 231-836-6
HS Code: 2828900000
Formula: NaClO2
Grade Standard: Tech Grade
Appearance: White to yellowish green crystalline powder or granule
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Textile: Bleaching agent, de-colorizer
Paper & pulp: Bleaching agent, de-colorizer
Food Processing: Bleaching agent, Disinfectant
Water treatment: Disinfectant
Leather industry: Dehairing
Surface treatment of metal: Corrosion inhibitor
Fine Chemistry: Producing chlorine dioxide

Specification

Item Range Unit Standard
80% 82% 90%
Sodium chlorite (NaClO2) ≥ ω/% 80 82 90
Sodium chlorate (NaClO3) ≤ ω/% 1.1 1 0.8
Sodium hydroxide (NaOH) ≤ ω/% 0.6 0.5 0.4
Sodium carbonate (Na2CO3) ≤ ω/% 0.8 0.6 0.5
Sodium chloride (NaCl) ≤ ω/% 15.6 14.7 9
Sodium sulfate (Na2SO4) ≤ ω/% 0.8 0.7 0.6
Sodium nitrate (NaNO3) ≤ ω/% 0.1 0.1 0.1
Arsenic (As) ≤ ω/% 0.0003 0.0003 0.0003
Mercury (Hg) ≤ ω/% 0.00001 0.00001 0.00001
Lead (Pb) ≤ ω/% 0.0001 0.0001 0.0001

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]]> 3094 Magnesium Sulfate (Hepta) https://hongdingintl.com/products/magnesium-sulfate-hepta/ Wed, 18 Jun 2025 02:39:46 +0000 http://www.hongdings.com/?post_type=product&p=3087 Magnesium sulfate (hepta) is White crystals. It is widely used in food, feed, agriculture, water treatment, household chemicals, paper & pulp, tanning, pharmaceuticals, porcelain industries...

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]]> Product Name: Magnesium Sulfate (Hepta)
CAS No: 10034-99-8
Einecs No: 600-073-4
HS Code: 2833210000
Formula: MgSO4·7H2O
Grade Standard: Tech Grade, Feed Grade
Appearance: White crystals.
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Food: Food fortifier
Feed industry: Feed supplement
Agriculture: Magnesium fertilizer
Water treatment: Flocculant, H regulator,
Household Chemicals: bath salt, toothpaste
Paper & Pulp: PH regulator, filling agent, anticoagulant
Tanning: softening agent, mordant
Pharmaceuticals: Laxative

Specification

Item Range Unit Standard
Superior Grade First Grade
Content (MgSO4·7H2O) ≥ ω/% 99.5 98
Magnesium sulfate (MgSO4) ≤ ω/% 48.59 47.85
Magnesium oxide (MgO) ≤ ω/% 16.27 15.93
Magnesium (Mg) ≤ ω/% 9.81 9.56
Chloride (as Cl) ≤ ω/% 0.1 0.2
Iron (Fe) ≤ ω/% 0.002 0.003
Water insoluble matter ≤ ω/% 0.02 0.05
Heavy metals (as Pb) ≤ ω/% 0.0008 0.0008
Arsenic (As) ≤ ω/% 0.0002 0.0002
PH ~ – 5~9 5~9
Particle ~ mm 0.1~1, 1~3, 2~4 –

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]]> 3087 Sodium Benzoate https://hongdingintl.com/products/sodium-benzoate/ Tue, 17 Jun 2025 06:09:53 +0000 http://www.hongdings.com/?post_type=product&p=3076 Sodium benzoate is white granules or crystalline powder. It is widely used as preservatives in food, pharmaceuticals, fine chemistry, feed additive, water treatment, and personal care industry.

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]]> Product Name: Sodium Benzoate
CAS No: 532-32-1
Einecs No: 208-534-8
HS Code: 2916310090
Formula: C7H5O2Na
Grade Standard: Tech Grade, Food Grade
Appearance: White granules or crystalline powder
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Food: Preservative for Beverages, jams and jellies, pickled foods, seasonings, baked foods…
Pharmaceuticals: Preservative for syrup, oral liquid, injection, eye drops…
Fine Chemistry: Anticorrosive agents, lubricant additives and rust inhibitors…
Feed Additive: Preservative, digestion improving
Water treatment: Corrosion inhibitor
Personal care: Preservative

Specification

Item Range Unit Standard
Sodium benzoate (on dry basis) ~ ω/% 99.0～100.5
Solution whiteness (Pt-Co color No.) ≤ Hazen 20
Clarity test of solutions – – Pass
Oxidizable – – Pass
Acidity & alkalinity – – Pass
Heavy metals (as Pb) ≤ mg/kg 10
Sulfate (as SO4) ≤ ω/% 0.1
Chloride (as Cl) ≤ ω/% 0.02
Phthalic acid ≤ ω/% 150
Loss on drying ≤ ω/% 1.5

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]]> 3076 Sodium Carboxymethyl Cellulose (CMC) https://hongdingintl.com/products/sodium-carboxymethyl-cellulose-cmc/ Sat, 14 Jun 2025 03:18:57 +0000 http://www.hongdings.com/?post_type=product&p=3063 Sodium Carboxymethyl Cellulose (CMC) is white to yellowish fibrous powder. It is used as thickening agent, emulsifier, depressant in food, mining, detergent, printing & dyeing, paper & pulp, water treatment, petroleum industry.

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]]> Product Name: Sodium Carboxymethyl Cellulose (CMC)
CAS No: 9004-32-4
Einecs No: 618-378-6
HS Code: 3912310000
Formula: [C6H7O2(OH)2OCH2C00Na]n
Grade Standard: Tech Grade, Food Grade
Appearance: White to yellowish fibrous powder
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Food Industry: Thickening agent, emulsifier, water-retaining agent
Detergent: Surfactant, Anti-stain reattachment agent
Mining: Depressant, thickening agent
Printing & dyeing: Adhesive, sizing agent
Petroleum industry: Viscosity builder, filter loss reducer and detergent
Paper & pulp: Sizing agent
Water treatment: Flocculant

Specification

Item Range Unit Standard Grades
Food Mining Detergent
Purity (CMC) ≥ ω/% 99.5 80 55
Viscosity (1% solution, 25°C) ~ mPa·s 20-6000 100-2000 –
Viscosity (2% solution, 25°C) ~ mPa·s – – 5-3000
Degree of substitution ~ ω/% 0.7-0.9 0.7-0.9 0.5-0.9
PH (10g/L solution) ~ – 6.0-8.5 6.5-8.0 8.0-11.5
Moisture ≤ ω/% – 10 10
Loss on drying ≤ ω/% 8 – –
Sodium glycolate ≤ ω/% 0.4 – –
Chloride (as NaCl) ≤ ω/% 0.5 – –
Sodium (Na) ≤ ω/% 12.4 – –
Arsenic (As) ≤ mg/kg 2 – –
Lead (Pb) ≤ mg/kg 2 – –

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]]> 3063 Ferrous Chloride https://hongdingintl.com/products/ferrous-chloride/ Sat, 07 Jun 2025 06:26:12 +0000 http://www.hongdings.com/?post_type=product&p=3047 Ferrous Chloride is used for wastewater treatment of dyeing & printing, papermaking, leather processing, electroplating. It is also used as reduction agents & mordants in dyeing and manufacturing, and used as raw material in making Ferric chloride, polymeric ferric chloride, polymeric ferric aluminum chloride.

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]]> Product Name: Ferrous Chloride
CAS No: 7758-94-3
Einecs No: 680-591-5
HS Code: 2827399000
Formula: FeCl2·4H2O
Grade Standard: Tech Grade
Appearance: Green crystals/liquid
Packaging Details: 25KG/BAG, 1000KG/DRUM

Application:
Wastewater treatment： Dyeing and printing, papermaking, leather processing, electroplating
Reduction agents & mordants: Dyeing and manufacturing
Raw material： Ferric chloride, polymeric ferric chloride, polymeric ferric aluminum chloride

Specification:

Item Range Unit Standard
Solid Liquid
Ferrous chloride (FeCl2) ≥ ω/% 60 30
Acid insoluble matter ≤ ω/% 0.1 0.1
Free acid (as HCl) ≤ ω/% 0.3 0.3
Arsenic (As) ≤ ω/% 0.0005
Lead (Pb) ≤ ω/% 0.004
Mercury (Hg) ≤ ω/% 0.00002
Cadmium (Cd) ≤ ω/% 0.0005
Chromium (Cr) ≤ ω/% 0.005
Zinc (Zn) ≤ ω/% 0.01
Iron (Fe) ≤ ω/% 0.05
Copper (Cu) ≤ ω/% 0.005
Manganese (Mn) ≤ ω/% 0.1

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]]> 3047 Sodium Chlorate https://hongdingintl.com/products/sodium-chlorate/ Fri, 06 Jun 2025 07:12:37 +0000 http://www.hongdings.com/?post_type=product&p=3046 Sodium Chlorate is white to yellowish crystals, mainly used in water purification, papermaking, tanning, herbicide, medicine, metallurgy, chemicals, enamel, perchlorate, chlorite, and etching liquids...

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]]> Product Name: Sodium Chlorate
CAS No: 7775-09-9
Einecs No: 231-887-4
HS Code: 2829110000
Formula: NaClO3
Grade Standard: Tech Grade
Appearance: White to yellowish crystals
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Used in water purification, papermaking, tanning, herbicide, medicine, metallurgy, chemicals, enamel, perchlorate, chlorite, and etching liquids…

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]]> 3046 Aluminium Sulfate https://hongdingintl.com/products/aluminium-sulfate/ Wed, 07 May 2025 07:27:15 +0000 http://www.hongdings.com/?post_type=product&p=2940 Aluminum Sulfate, soluble in water, acids, and bases, insoluble in alcohols. It forms acidic aqueous solutions, hydrolyzes to produce aluminum hydroxide. Mainly used as flocculant in water Treatment, precipitation agent & sizing agent in papermaking, decolorizer & deodorizer in petroleum...

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]]> Product Name: Aluminium Sulfate
CAS No: 10043-01-3
Einecs No: 233-135-0
HS Code: 2833220000
Formula: Al2(SO4)3
Grade Standard: Food Grade, Tech Grade
Appearance:
Class I: white flakes, lumps, granules or powder;
Class II: gray or yellow flakes, lumps, granules or powder.
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Papermaking: Precipitation agent & sizing agent
Water Treatment: Flocculant
Fire Safety: Foam stabilizer (fire extinguishers)
Chemical Production: Raw material for alum & aluminum white
Petroleum: Decolorizer & deodorizer
Edible Oils: Clarifying agent
Pharmaceuticals: Drug precursor
Other Uses: Leather tanning, synthetic gemstones, high-purity ammonium alum

Specification:

Item Standard
Class I Class II
Aluminum oxide (Al2O3) ω/% ≥ 16 ≥ 15.8
Iron (Fe) ω/% ≤ 0.005 ≤ 0.3
Water insoluble matter ω/% ≤ 0.1 ≤ 0.1
pH ≥ 3 ≥ 3

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]]> 2940 Ferric Chloride https://hongdingintl.com/products/ferric-chloride/ Tue, 06 Aug 2024 02:44:04 +0000 http://www.hongdings.com/product/dark-brown-jeans/ Ferric chloride is an important iron salt. When dissolved in water, it releases a large amount of heat, forming a coffee-colored or brownish-yellow acidic solution. From this solution, hexahydrate ferric chloride with crystalline water can be precipitated. It is widely used in wastewater treatment (flocculant), metal etching, catalytic processes, oxidation reactions, mordant applications, pharmaceutical manufacturing...

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]]> Product Name: Ferric Chloride
CAS No: 7705-08-0
Einecs No: 231-729-4
HS Code: 2827399000
Formula: FeCl3; FeCl3·6H2O
Grade Standard: Tech Grade
Appearance:
Liquid : Reddish brown liquid;
Solid : Brown crystal (FeCL3); Yellowish brown crystal (FeCl3·6H2O).
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Widely used in wastewater treatment (flocculant), metal etching, catalytic processes, oxidation reactions, mordant applications, pharmaceutical manufacturing…

Specification:

Item Range Unit Standard
Liquid Solid (FeCl3·6H2O)
Iron (Fe3+) ≥ ω/% 14 20
Ferrous (Fe2+) ≤ ω/% 0.1 0.15
Water insoluble matter ≤ ω/% 0.5 1
Free acid (as HCl) ≤ ω/% 0.4 0.8
Density @ 20°C ≥ g/cm3 1.4 –
Zinc (Zn) ≤ ω/% 0.0005
Arsenic (As) ≤ ω/% 0.0002
Lead (Pb) ≤ ω/% 0.0005
Mercury (Hg) ≤ ω/% 0.00001
Cadmium (Cd) ≤ ω/% 0.0001
Chromium (Cr) ≤ ω/% 0.0008

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]]> 1211 Polyaluminium Chloride (PAC) https://hongdingintl.com/products/polyaluminium-chloride-pac/ Tue, 06 Aug 2024 02:44:04 +0000 http://www.hongdings.com/product/dnk-blue-sport-shoes-2/ Polyaluminium Chloride (PAC) is widely used in drinking water treatment, urban sewage treatment and various industrial wastewater treatment. It can also be used in paper sizing, casting molding, pharmaceutical refining, cosmetic manufacturing, catalyst carrier, sludge dewatering, rapid setting of cement, anti-wrinkle treatment of fabrics, sugar solution, glycerin refining and other aspects.

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]]> Product Name: Polyaluminium Chloride (PAC)
CAS No: 1327-41-9
Einecs No: 215-477-2
HS Code: 2827320000
Formula: Aln(OH)mCl(3n-m) 0＜m＜3n
Grade Standard: Food Grade, Tech Grade
Appearance:
Liquid: Colorless to yellow or yellow-brown liquid
Solid: White to yellow or yellow-brown granules or powder
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Polyaluminium Chloride (PAC) is widely used in drinking water treatment, urban sewage treatment and various industrial wastewater treatment. It can also be used in paper sizing, casting molding, pharmaceutical refining, cosmetic manufacturing, catalyst carrier, sludge dewatering, rapid setting of cement, anti-wrinkle treatment of fabrics, sugar solution, glycerin refining and other aspects.

Specification:

Item Range Unit Standard
Liquid Solid
Aluminum oxide (Al2O3) ≥ ω/% 8 28
Salinity ≥ ω/% 20-98 –
Density (20°C) ≥ g/cm3 1.12 –
Water insoluble ≤ ω/% 0.4 –
pH (10g/L solution) – – 3.5-5.0 –
Iron (Fe) ≤ ω/% 1.5 –
Ammonia (as N) ≤ ω/% 0.05 –
Arsenic (As) ≤ ω/% 0.0005 –
Lead (Pb) ≤ ω/% 0.002 –
Cadmium (Cd) ≤ ω/% 0.0005 –
Mercury (Hg) ≤ ω/% 0.00005 –
Chromium (Cr) ≤ ω/% 0.005 –

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]]> 1212 Polyacrylamide (PAM) https://hongdingintl.com/products/polyacrylamide-pam/ Tue, 06 Aug 2024 02:44:03 +0000 http://www.hongdings.com/product/denim-blue-jeans/ Polyacrylamide is an important water-soluble polymer and possesses valuable properties such as flocculation, thickening, shear resistance, drag reduction and dispersion. It is widely used in municipal sludge treatment, industrial wastewater treatment, coal, paper making, petroleum, metallurgy, dyeing, pharmaceuticals, tanning...

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]]> Product Name: Polyacrylamide (PAM)
CAS No: 9003-05-8
Einecs No: 231-545-4
HS Code: 3906901000
Formula: (C3H5NO)n
Grade Standard: Food Grade, Tech Grade
Appearance: White to yellowish powder.
Packaging Details: 25KG/BAG, 1000KG/BAG

Application:
Cationic PAM is used for municipal sludge treatment, industrial wastewater treatment, paper making and other fields;
Anionic PAM is applied in petroleum, metallurgy, electric power, chemical industry, coal, papermaking, printing and dyeing, tanning, pharmaceuticals, food etc.
Nonionic PAM is used in mineral processing (lead, zinc, copper ores…), metal smelting effluent treatment, industrial wastewater clarification.

Specification:

Item Range Unit Standard
Anionic Non-ionic Cationic
Solid content (solids) ≥ ω/% 90 90 88
Acrylamide monomer content (dry basis) ≤ ω/% 0.02 0.02 0.1
Dissolution time (g/L) ≤ min 60 90 60
Water soluble ≤ ω/% 0.3 0.3 0.3
Sieve residue (1.00mm mesh) ≤ ω/% 2 2 –
Sieve residue (1.40 mm screen) ≤ ω/% – – 5
Sieve residue (180μm screen) ≥ ω/% 88 88 85
Chloride (Cl) ≤ ω/% 0.5 0.5 0.05
Sulfate (SO4) ≤ ω/% 1 1 0.05

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