Factory Supply 33% Zinc Sulfate Monohydrate Feed Grade Powder

• Applied animal classification: Aquatic Animals, Livestock, Poultry, Ruminants
• Certification: ISO, Fami-QS, SGS
• Shape: Granulate
• Model NO.: Zinc Sulphate Monohydrate
• Type: Nutrition Enhancers
• Zn: 33%Min
• Efficacy: Promote Healthy & Growth
• Classification: Feed Additives
• CAS: 7446-19-7
• Chemical Formula: Znso4·H2O
• Transport Package: 25kg Bags with Pallets or Not
• Specification: SGS approved
• Trademark: POLIFAR
• Origin: Jiangsu Province
• HS Code: 2833293000
• Production Capacity: 3000mts Monthly

Product Description

Product Description

Factory Supply 33% Zinc Sulfate Monohydrate Feed Grade Powder

Product name:

Chemical formula: Znso4·H2O

CAS: 7446-19-7

Product performance:

Feed grade zinc sulfate heptahydrate is often used as an animal feed additive to supplement animals' zinc needs and promote animal growth and health. Its purity and heavy metal content are often more strictly regulated to ensure safety for animals and the environment.
 
Industrial grade zinc sulfate heptahydrate is usually used in industrial production, such as as a catalyst or raw material in metal processing, chemical industry and other industrial fields. Its purity requirements are generally lower, but it still plays an important role in specific industrial applications.

Specification

Feed Grade Zinc Sulfate Monohydrate
Testing   Item	Standard
Zincsulfate/%	≥94.7
Zinc(powder   Zn)/%	≥35
Zinc(granule   Zn)/%	≥33
Arsenic (As)/%	≤0.0005
Heavy Metal (Pb)/%	≤0.0010
Cadmium(Cd)/%	≤0.0010
Water   Insoluble/%	≤0.05%
Size(powder   pass 0.5mm test sieve)/%	≥95%
Size(granule   pass 1-2mm test sieve)/%	≥95%
Size(granule   pass 2-4mm test sieve)/%	≥95%

Feed Grade Zinc Sulfate Monohydrate

High Bioavailability: Highly soluble in water, ensuring better absorption and reduced zinc loss.

Premium Raw Materials: Sourced from high-purity zinc ore for stable and reliable quality.

Strict Quality Control: Complies with GB/T 25865-2010, FAMI-QS, and ISO 9001:2015 quality management systems.

Wide Application: Suitable for pigs, poultry, cattle, sheep, and aquaculture feed.

Cost-effective: More economical compared to organic zinc sources while maintaining excellent efficiency

Application

Animal Feed Additive

Feed Premix

Aquaculture

Enhances the growth rate and immunity of poultry, livestock, and aquatic animals.

Used in compound feed and concentrated feed to balance zinc levels.

Promotes the healthy development of fish, shrimp, and other aquatic species.

Usage Guidelines

Recommended Dosage (for reference only, adjust according to specific feed formulations):

Pig feed: 80-100 mg/kg

Poultry feed: 100-120 mg/kg

Cattle & sheep feed: 60-80 mg/kg

Aquatic feed: 120-150 mg/kg

Precautions: Avoid mixing with strong acids, alkalis, or oxidants. Overuse should be prevented to avoid negative effects on animal health.

Packing & Delivery

Packaging Options:
Standard packaging: 25kg/bag (woven bag/kraft paper bag with inner plastic liner)
Customized packaging is available upon request.

Storage & Transportation:
Store in a dry, cool, and well-ventilated area to prevent moisture and caking.
Avoid heavy stacking to maintain product integrity.
Protect from rain, humidity, and damage during transportation.

We have a standardized and clean warehouse with constant temperature and ventilation conditions, ensuring that all food additives are stored in a safe and stable environment. Strict batch management and inventory control systems are implemented to guarantee product freshness and traceability.
Our products are packed with professional, safe and hygienic packaging materials in line with food grade standards, effectively protecting them from moisture, oxidation and damage during storage and transportation.
 
For transportation, we cooperate with reliable and professional logistics partners to provide safe and efficient delivery services. Strict loading and transportation procedures ensure that products reach customers in good condition, meeting both domestic and international delivery requirements.
With standardized warehousing, reliable packaging and efficient transportation, we fully ensure product quality and delivery stability, allowing you to purchase with confidence.

Company Profile

POLIFAR GROUP LIMITED was established in 2013, and belongs to manufacturing&trading combo with an import and export license endorsed by the State Bureau of Foreign Trade, Customs Administration. We focus on R&D, sales, and technical services of food ingredients, feed additive, feed premix, and other chemical products.
 
POLIFAR passed ISO9001 after more than 2 months of factory investigation and audit in 2008 and has reached the international advanced level of management. Companies are based in China with reputable brands and are also recognized by the domestic feed industry.

Relevant Certificates

Polifar Group holds a complete set of international and industry-specific certifications, demonstrating our unwavering commitment to quality, safety, and reliability as a trusted feed additive supplier.

Our products comply with rigorous global standards, including FAMI-QS, ISO 9001 Quality Management System, ISO 22000 Food Safety Management System, and HACCP certification, ensuring full traceability from raw material sourcing to finished product delivery. We also meet regional regulatory requirements such as EU Feed Additive Regulations and China Feed Hygiene Standards, with all production processes strictly audited and documented to guarantee consistency and safety.

Every batch of feed additives undergoes third-party testing for heavy metals, pathogens, and purity, delivering products that are safe for livestock, poultry, and aquaculture use. Our comprehensive certification system not only reflects our adherence to global best practices but also provides our partners with full confidence in the quality, compliance, and sustainability of our solutions.

FAQ

Q1: What grades of zinc sulfate do you offer, and what are their zinc contents?

A: We supply three grades of zinc sulfate monohydrate powder:

Feed Grade: 33% or 35% Zn content, CAS 7446-19-7, compliant with FAMI-QS and feed safety standards.

Industrial Grade: 33% or 35% Zn content, suitable for electroplating, water treatment, and chemical synthesis.

Agricultural Grade: 33% or 35% Zn content, ideal for soil fertilization and foliar nutrition to correct zinc deficiency in crops.

 

Q2:

A: The core difference lies in zinc content:

33% grade: Lower zinc content, more cost-effective for bulk applications (e.g., general agricultural fertilization, industrial raw materials).

35% grade: Higher zinc concentration, preferred for high-end feed premixes and precision agriculture where nutrient density is critical.

Both grades have stable physical properties and good solubility, with consistent quality from Polifar Group.

 

Q3: Is your feed grade zinc sulfate safe for livestock and poultry?

A: Yes. Our feed grade zinc sulfate (33%/35%) meets strict international feed safety standards (FAMI-QS, ISO 22000, HACCP).

Heavy metals (Pb, As, Cd) are controlled well below regulatory limits.

No harmful impurities or pathogens, ensuring safe use in swine, poultry, aquaculture, and ruminant feed.

Full traceability from raw material to finished product for quality assurance.

 

Q4: What are the main applications of industrial grade zinc sulfate?

A: Our industrial grade 33%/35% zinc sulfate is widely used in:

Electroplating industry: As a zinc source for galvanizing and metal surface treatment.

Water treatment: To remove impurities and control microbial growth in industrial wastewater.

Chemical manufacturing: As a raw material for producing other zinc compounds, pigments, and preservatives.

Mineral processing: As a flotation agent for non-ferrous metal ores.

Q5: How to use agricultural grade zinc sulfate for crop nutrition?

A: Our agricultural grade 33%/35% zinc sulfate can be applied in two ways:

1. Soil application: Mixed with base fertilizers or applied as a top dressing, 15–30 kg per hectare to correct soil zinc deficiency.

2. Foliar spray: Diluted to 0.1%–0.3% solution, sprayed on crop leaves during the growing season to quickly alleviate zinc deficiency symptoms (e.g., leaf chlorosis, stunted growth).

It is suitable for rice, corn, fruit trees, vegetables, and other zinc-sensitive crops.

 

Q6: What is the shelf life and storage requirement of your zinc sulfate powder?

A: The shelf life of our zinc sulfate powder is 24 months when stored properly.

Storage conditions: Keep in a cool, dry, and well-ventilated warehouse, away from moisture, direct sunlight, and strong oxidizing agents.

Packaging: 25kg or 50kg kraft bags with inner PE liners to prevent caking and moisture absorption.

Avoid contact with alkaline substances to prevent chemical decomposition.

 

Q7: Can you provide customized packaging or private labeling?

A: Yes, Polifar Group offers flexible customization services:

Packaging options: 1kg, 5kg, 25kg, 50kg, 1 ton jumbo bags, or other custom sizes.

Private labeling: We can print your company logo, product information, and regulatory labels on the packaging as per your requirements.

Customized formulations: Adjust zinc content or particle size to meet specific application needs (e.g., free-flowing powder for feed premixes).

 

Q8: What certifications do your zinc sulfate products have?

A: Our zinc sulfate products hold comprehensive certifications to ensure quality and compliance:

Feed Grade: FAMI-QS, ISO 9001, ISO 22000, HACCP, and compliance with EU Feed Additive Regulations.

Industrial/Agricultural Grade: ISO 9001 quality management system, and relevant national/regional industrial standards.

All products are tested by third-party laboratories, with full test reports and certification documents available for your review.

Contact Us

If you have any questions about product parameters, application solutions, pricing, and delivery time, please feel free to contact us. We will answer your questions as soon as possible.
 
For samples, COAs, certification documents, or more technical support, please feel free to contact us. We are dedicated to serving you.
 
For any questions regarding product details, usage methods, or customization needs, please feel free to . Our professional team will provide you with one-on-one service.
 
Thank you for your attention and trust. If you have any questions, please leave a message or call us. We look forward to cooperating with you for mutual benefit.
 
If you need further information about product details or have special requirements, please feel free to contact us. We will provide you with satisfactory solutions.