Products

QINGYUAN CHEMICAL


Zinc sulphate

Zinc Sulphate is an important zinc-containing inorganic compound, available in monohydrate and heptahydrate types. It appears as white crystalline powder or granular with a minimum purity of 98%. It features good solubility, stable performance and high zinc content. It is widely used in agriculture as fertilizer, in feed as mineral additive, and in industry for electrolytes, water treatment and dyes. Our product meets industrial, agricultural, feed and food grades, certified with ISO 9001, ISO 14001, REACH and FDA standards. It is packed in 25kg PP/PE bags or 1000kg jumbo bags. With reliable quality, stable supply and competitive prices, our Zinc Sulphate is highly popular in global markets.

Sodium Hydrosulphide

Sodium Hydrosulphide (NaHS) is an important industrial chemical, appearing as white to yellowish flakes with a minimum purity of 70%. It has strong chemical activity and good solubility, widely used in mineral flotation, leather tanning, dyeing, wastewater treatment, and organic synthesis. It acts as a key reducing agent and sulfiding agent in various industrial processes. Our product is manufactured under strict quality control, conforming to ISO 9001 and ISO 14001 standards, with reliable and consistent performance. It is securely packed in 25kg iron drums or 25kg PP bags to ensure safe transportation. With stable quality, competitive pricing and timely delivery, our Sodium Hydrosulphide is well-received by global industrial customers.

Sodium Sulfide

Sodium sulfide (Na ₂ S, also known as alkali sulfide) relies on its strong alkalinity, reducibility, and precipitation characteristics with metal ions. Its core applications include chemical, textile, papermaking, and other industrial fields: chemical industry (core application field), sulfide preparation raw materials, and heavy metal treatment; Textile printing and dyeing industry, papermaking industry, leather industry, electroplating and surface treatment, mineral processing industry. Sodium sulfide is toxic, corrosive, and prone to deliquescence and oxidation. 

Melamine

Melamine is a high-purity organic chemical compound with the formula C₃H₆N₆, appearing as a white crystalline powder with 99.8% min purity. It features excellent thermal stability, insulation, and water resistance. It is widely used in the production of melamine-formaldehyde resins, laminates, coatings, adhesives, and tableware. It also serves as a flame retardant and cement additive. Our melamine is produced under strict quality control and certified with ISO 9001 and ISO 14001. It is packed in 25kg PP/PE bags or jumbo bags for safe delivery. With stable quality, competitive price and consistent supply, our melamine is highly popular in global markets.

Methylene Chloride (Dichloromethane, DCM)

Melamine is a high-purity organic chemical compound with the formula C3H6N6, appearing as a white crystalline powder with 99.8% min purity. It features excellent thermal stability, insulation, and water resistance. It is widely used in the production of melamine-formaldehyde resins, laminates, coatings, adhesives, and tableware. It also serves as a flame retardant and cement additive. Our melamine is produced under strict quality control and certified with ISO 9001 and ISO 14001. It is packed in 25kg PP/PE bags or jumbo bags for safe delivery. With stable quality, competitive price and consistent supply, our melamine is highly popular in global markets.

Sodium Nitrite

Sodium Nitrite (NaNO₂) is a white to light yellow crystalline powder with a minimum purity of 99%. It features good solubility and stable chemical properties, widely used as a food preservative, color fixative, industrial oxidizing agent, and metal corrosion inhibitor. It plays an important role in food processing, dye manufacturing, pharmaceutical production, and construction chemicals. Our product is available in industrial and food grades, strictly controlled under international quality systems and certified with ISO 9001, ISO 14001, REACH and FDA standards. It is safely packed in 25kg PP/PE bags or 50kg iron drums. With reliable quality, consistent supply and competitive prices, our sodium nitrite is well recognized by global customers.

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