Municipal Archives

Potassium Silicate Powder

Product Overview:

Potassium silicate powder is an inorganic compound. It is widely used in agriculture as a foliar fertilizer and soil amendment, supplying both potassium and silicon to crops. Silicon strengthens plant cell walls, improves resistance to fungal diseases and insect pressure, and enhances tolerance to drought and heavy metal stress, making potassium silicate particularly valued in rice, sugarcane, turf, and high-value horticulture programs. In the construction and coatings industry, potassium silicate is used as a binder in inorganic mineral paints and silicate coatings applied to concrete, masonry, and stone facades, where it reacts chemically with the substrate to form an extremely durable, weather-resistant, and breathable film. It is also used as a concrete hardener and densifier, penetrating the surface to react with free lime and increase surface hardness and abrasion resistance. In industrial applications, potassium silicate serves as a binder in refractory cements and high-temperature coatings, as a welding rod flux coating binder, and as a fire retardant additive in wood treatment and textile finishing.

Relevant identified uses:
Industrial use
Chemicals for various applications

Documentation:

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Technical Information:

Appearance
Powder

Modulus
2.30 – 2.50

SiO₂
48.0 – 54.0 %

K₂O
31.0 – 35.0 %

Dissolved Speed
< 60 s

Apparent Density
0.50 – 0.80 g/ml

100 mesh Sieve Residue
≤ 5 %

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Sodium Hexametaphosphate NSF

Sodium Hexametaphosphate NSF

Product Overview:

Identification of Substance: sodium polyphosphate

Trade name: Sodium Hexametaphosphate

CAS #: 68915-31-1

Sodium hexametaphosphate (SHMP) NSF grade is a food- and drinking-water-safe polyphosphate compound used across municipal water treatment and food processing applications. Its NSF certification qualifies it for direct food contact and potable water treatment use under NSF/ANSI Standard 60, making it commonly employed as a corrosion and scale inhibitor in municipal drinking water systems, where it sequesters calcium, magnesium, and iron to prevent pipe scaling and discoloration. Additionally, it serves as a food additive for moisture retention and texture improvement in meat, seafood, and dairy products requiring certified food-grade purity. SHMP NSF grade is also utilized in municipal water treatment programs specifically requiring certified, potable-water-safe sequestering chemistry.

Documentation:

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Technical Information:

P₂O₅ content
≥ 67 %

pH (1% solution)
6.0 – 7.0

Hg content
≤ 1.0 ppm

Water Insoluble Matter
≤ 0.15 %

Los on Ignition (550^oC)
≤ 1.0 %

Loss of Weight (4h/105^oC)
≤ 0.2 %

Chain Length
12 – 17

Residue on sieves – 1.00 mm
≤ 50 %

Residue under sieves – 0.25 mm
≤ 25 %

As content
≤ 40.0 ppm

F content
≤ 5.0 ppm

Pb content
≤ 2.0 ppm

Cd content
≤ 1.0 ppm

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Sodium Hexametaphosphate (SHMP)

Product Overview:

Identification of Substance: sodium polyphosphate

CAS #: 68915-31-1

Sodium hexametaphosphate (SHMP) is a versatile polyphosphate compound used across water treatment, food processing, and chemical manufacturing applications. It is commonly employed as a scale and corrosion inhibitor and sequestering agent in industrial and municipal water treatment, binding calcium and magnesium ions to prevent mineral deposit formation. Additionally, it serves as a food additive for texture improvement and moisture retention in meat, seafood, and dairy products. SHMP is also utilized as a dispersant in detergents and ceramics manufacturing, improving particle suspension and reducing viscosity in clay slurries. Furthermore, it finds applications in general chemical manufacturing processes requiring a soluble, food-grade polyphosphate.

Relevant identified uses: Sequestrant

Documentation:

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Technical Information:

P₂O₅ Content
≥ 67.0 %

pH 1% solution
6.0 – 7.0

Water insoluble
≤ 0.15 %

Loss of Weight (4h/105^oC)
≤ 0.20 %

Loss on ignition (550^oC)
≤ 1.0 %

Chain Length
12 – 17

Residue on sieves – 1.0 mm
≤ 50 %

Residue under sieves – 1.0 mm
≤ 25 %

As
≤ 40 ppm

F
≤ 5.0 ppm

Pb
≤ 2.0 ppm

Cd
≤ 1.0 ppm

Hg
≤ 1.0 ppm

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Sodium Bisulfite 99%

Product Overview:

Identification of Substance: sodium hydrogensulfite

CAS #: 7631-90-5

Sodium bisulfite is a reducing agent and preservative used across water treatment, food, and leather and textile applications. It is commonly employed in municipal and industrial water treatment for dechlorination, neutralizing residual chlorine before discharge or reuse of treated water. Additionally, it serves as a preservative and antioxidant in food and beverage processing, particularly in winemaking and dried fruit production, where it prevents browning and microbial spoilage. Sodium bisulfite is also utilized in leather and textile processing for bleaching and reducing applications during finishing. Furthermore, it finds applications in general industrial processes requiring a reducing agent.

Relevant identified uses:
Chemicals for various applications

Documentation:

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Technical Information:

Main Content (NaHSO₃)
≥ 99.0 %

Water Insoluble
≥ 0.03 %

Iron (Fe)
≤ 0.004 %

Heavy Metals (Pb)
≤ 0.001 %

Arsenic (As)
≤ 0.0002 %

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Sodium Acetate Anhydrous

Product Overview:

CAS #: 127-09-3

Sodium acetate is a versatile sodium salt used across food, construction, textile, and municipal applications. It is commonly employed as a food preservative and flavoring agent, most notably providing the characteristic taste in salt and vinegar flavored snack products. Additionally, it serves as a concrete curing accelerant and corrosion inhibitor in construction, speeding up strength development while helping protect embedded reinforcing steel. Sodium acetate is also utilized as a buffering agent in textile dyeing processes, helping maintain consistent pH during dye application. Furthermore, it finds applications as a deicing agent for municipal winter road maintenance, offering reduced corrosivity compared to chloride-based deicers.

Relevant identified uses: Industrial use

Documentation:

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Technical Information:

Appearance
White Crystalline Powder

Content (dry basis)
99.0 – 101.0 %

Alkalinity
≤ 0.2 %

Loss on Drying
≤ 1.0 %

Pb
≤ 2 mg/kg

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Potassium Permanganate

Product Overview:

CAS #: 7722-64-7

Potassium permanganate is a powerful oxidizer used extensively across municipal, industrial, and leather and textile applications. It is commonly employed in municipal and industrial water treatment for iron and manganese removal, taste and odor control, and disinfection of drinking water supplies. Additionally, it serves as an oxidizing agent for hydrogen sulfide removal and general water quality improvement in well water treatment systems. Potassium permanganate is also utilized in leather and textile processing for bleaching, acid-wash denim finishing, and controlled color fading effects. Furthermore, it finds applications in general industrial water treatment programs requiring a strong, versatile oxidizer.

Relevant identified uses:
Oxidizing agent
Laboratory chemical
Bleaching agent
Water treatment chemical
Chemicals for synthesis

Uses advised against: Do not use for products which come into direct contact with the skin

Documentation:

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Technical Information:

Appearance
Dark Purple Crystalline

Potassium Permanganate (as KMnO₄)
≥ 97.5 %

Moisture
≤ 0.50 %

Chloride (as Cl)
≤ 0.10 %

Sulfate (as SO₄)
≤ 0.20 %

Nitrate (as NO₃)
≤ 0.20 %

Insoluble Matter
≤ 1.70 %

Water Tolerance Test / Pour Test
4.0 – 7.0

Bulk Density at 72^oF
90 – 100 lb/ft³

Particle Size Distribution

Retained on US Standard Sieve #40
≤ 20 %

Passing through US Standard Sieve #200
≤ 7 %

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Potassium Acetate Powder

Product Overview:

CAS #: 127-08-2

Potassium acetate powder is a versatile salt used across fire protection, municipal, food, and vehicle deicing applications. It is commonly employed as a low-corrosion deicing agent for roads, runways, and aircraft in cold climates, offering an alternative to chloride-based deicers that reduces damage to vehicles and infrastructure. Additionally, it serves as a component in fire suppression agents, particularly wet chemical extinguishing systems used for kitchen and commercial cooking fires. Potassium acetate is also utilized as a food preservative and acidity regulator in processed food products. Furthermore, it finds applications as an additive in oilfield drilling fluids requiring a soluble potassium salt.

Relevant identified uses:
Chemicals for various applications

Documentation:

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Technical Information:

Assay
99 – 100.5 %

pH
7.5-8.5

Cl
≤ 500 ppm

Pb
≤ 10 ppm

Fe
≤ 10 ppm

K
> 39 %

SO4
≤ 100 ppm

As
≤ 4 ppm

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Ferrous Sulfate Monohydrate 30% 6-12 Mesh

Product Overview:

Identification of Substance: iron(II) sulfate monohydrate

CAS #: 17375-41-6

Ferrous sulfate monohydrate, sized to a 6-12 mesh range, is used in fertilizer blending and water treatment applications. It is commonly employed as an iron source in fertilizer blends and animal feed mineral premixes, where its granular particle size reduces dust and improves blending uniformity. Additionally, it serves as a coagulant and phosphate-removal agent in municipal and industrial water treatment systems. This grade is also utilized in bulk fertilizer blending operations that require consistent particle sizing to prevent segregation. Furthermore, it finds applications in general agricultural and water treatment programs requiring a granular iron sulfate product.

Relevant identified uses: Animal feed additive, Additive for fertilizer

Documentation:

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Technical Information:

FeSO₄.H₂0
≥ 91.0 %

Iron (Fe)
≥ 30 %

Lead (Pb)
≤ 20 ppm

Cadnium (Cd)
≤ 5 ppm

Arsenic (As)
≤ 2 ppm

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Dichloroisocyanuric Acid (DCCA)

Dichloroisocyanuric Acid (DCCA)

Product Overview:

Identification of Substance:

CAS #:

Dichloroisocyanuric Acid (DCCA) is a stabilized chlorine compound used for water disinfection in swimming pools, drinking water, and institutional cleaning. It provides slow-release available chlorine resistant to UV degradation. Also used in food processing sanitation and textile bleaching.

Relevant identified uses:

Documentation:

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Technical Information:

Main Content (as (NH₄)₂HPO₄)
≥ 99.0 %

Phosphorus Pentoxide (as P₂O₅)
≥ 53.0 %

Total Nitrogen (N)
≥ 20.8 %

Moisture
≤ 0.2 %

Water Insoluble
≤ 0.1 %

Flouride (as F)
≤ 50 mg/kg

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Calcium Hypochlorite

Calcium Hypochlorite

Product Overview:

CAS #: 7778-54-3

Calcium hypochlorite is a high-strength oxidizing disinfectant used for swimming pool sanitation, municipal drinking water treatment, and industrial bleaching. With 65-70% available chlorine it kills bacteria, viruses, and algae. Also used in textile bleaching.

Relevant identified uses:
Water disinfectant

Documentation:

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Technical Information:

Appearance
Off-white / Grey Granules

Available Chlorine
≥ 65 %

Moisture @ 105^oC
5 – 10 %

Water-insoluble substance
≤ 3 %

Calcium Chloride (as CaCl₂)
≤ 3 5

Sodium Chloride (as NaCl)
≤ 20 %

Calcium Hydroxide (as Ca(OH)₂)
≤ 3 %

Aluminum Oxide (as Al₂O₃)
≤ 1 %

Chromium (Cr)
≤ 10 ppm

Iron (as Fe)
≤ 0.1 %

Heavy Metal (as Pb)
≤ 10 ppm

Arsenic (as As)
≤ 10 ppm

Cadmium (as Cd)
≤ 5 ppm

Antimony (Sb)
≤ 10 ppm

Mercury (Hg)
≤ 10 ppm

Selenium (Sc)
≤ 5 ppm

Density
1.1 – 1.3 g/cc

Particle Size
Retention on 36 Mesh ≥ 50 %

Retention on 100 Mesh ≥ 90 %

EPA Registration Number 95968-2 issued July 26, 2021

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