Usage and Dosage:
1. Industrially: ferrous sulphate heptahydrate is mainly used as a precursor to other iron compounds. It is a reducing agent, for the reduction of chromate in cement.
2. Nutritional Supplement: Together with other iron compounds, ferrous sulphate is used to fortify foods and treat iron-deficiency anemia. Constipation is a frequent and uncomfortable side effect associated with the administration of oral supplements. Stool softeners often are prescribed to prevent constipation.
3. Colorant: Ferrous sulphate can also be used to stain concete and some limestones and sandstones a yellowish rust color.
4. Water Treatment: Ferrous sulphate has been applied for the purification of water by flocculation and for phosphate removal in municipal and industrial sewage treatment plants to prevent eutrophication of surface water bodies.
Storage:
Storage Store in cool, dry, well ventilated area, removed from oxidising agents (eg. hypochlorites), acids, metals and foodstuffs. Ensure containers are adequately labelled, protected from physical damage and sealed when not in use. Large storage areas should have appropriate ventilation systems.
Precaution: Flammability Non flammable. No fire or explosion hazard exists.
Packing: Net weight 25kgs, 50kgs per each plastic woven bag
Technical Specification
Appearance: Light green crystalline powder
Fe 19.7%min
Pb 20 ppm max
As2 ppm max
Cd 5 ppm max
Size Crystalline Powder
Content of Choline Chloride - 60% min
Loss on drying - 4.0 max
Particle size (20 mesh sieves) - 95% min
Heavy metal (Pb) - 0.002 max
TMA - 1000 ppm max
Description of Choline Chloride
Specification: Feed grade.
Contents:50%,60%,70%,75%,98%
Choline Chloride has the formula C5H14CINO.the carrier of the powder product is Corn cob or Silica.
Corn cob base Choline Chloride is yellow brownish dry powder and Silica base Choline Chloride is white dry powder.
Function and Usage:
Uses
[1] Choline Chloride is one kind of vitamins,it is the essential component of lecithin. And it is very important for the nutrition and growth of the animals.
[2] To prevent the accumulation of fat in livers and kidneys and avoid its pathological changes.
[3] To enhance the health of animals and to improve its ability to anti-illness.
[4]To increase the growth rate and laying rate to increase the survival rate Of baby pig.
[5]to increase the growth and survival rate of fishes promote its propagation
[6] to ensure the proper functioning of the nervous system of animals .
Paraformaldehyde is a polymer of formaldehyde with the chemical formula (CH2O)n, where n is typically in the range of 8 to 100. It is a white, crystalline solid composed of small, polymeric formaldehyde units. Paraformaldehyde is commonly used as a solid form of formaldehyde, and it has various applications in different fields.
Form and Structure:
Paraformaldehyde is a low-molecular-weight polymer of formaldehyde, consisting of repeating CH2O units.
It is often produced in the form of white, crystalline granules or as a powder.
Uses:
Fixative in Histology: Paraformaldehyde is commonly used in histology and pathology laboratories as a fixative for preserving biological specimens for microscopic analysis.
Disinfectant: It has disinfectant properties and can be used for sterilizing equipment.
Crosslinking Agent: Paraformaldehyde is used in the crosslinking of proteins, peptides, and nucleic acids in molecular biology applications.
Chemical Synthesis: It serves as a source of formaldehyde in various chemical reactions and syntheses.
Handling and Safety:
Paraformaldehyde should be handled with care, and precautions should be taken to avoid inhalation, skin contact, or ingestion.
When paraformaldehyde is heated, it releases formaldehyde gas, which is a strong irritant. Adequate ventilation and protective equipment should be used when working with paraformaldehyde.
Dissolution:
To use paraformaldehyde as a fixative or in other applications, it is typically dissolved in water to generate a formaldehyde solution.
Storage:
Paraformaldehyde should be stored in a cool, dry place away from heat sources and incompatible materials.
Ammonium sulfate is a common inorganic salt. It contains two ammonium ions and one sulfate ion. This salt is widely used in various applications, including agriculture, industrial processes, and laboratory settings. Here are some key points about ammonium sulfate:
Nitrogen and Sulfur Content: Ammonium sulfate is a good source of both nitrogen and sulfur. The nitrogen is in the ammonium form, making it readily available for plants.
Solubility: Ammonium sulfate is highly soluble in water, allowing it to be easily dissolved for use in liquid fertilizers or irrigation systems.
Fertilizer Use: It is commonly used as a nitrogen and sulfur fertilizer in agriculture to provide essential nutrients for plant growth.
The nitrogen in ammonium sulfate is gradually released, providing a sustained nutrient supply to plants.
Acidity: Ammonium sulfate is acidic in nature, and its application can contribute to lowering the pH of the soil. This can be beneficial in alkaline soils or for crops that prefer slightly acidic conditions.
Soil Amendment: In addition to providing nutrients, ammonium sulfate can also serve as a soil amendment for improving certain soil characteristics.
Industrial Applications: Ammonium sulfate is used in various industrial processes, including the production of textiles, dyes, and flame retardants.
It is also employed in certain chemical reactions and as a precipitant in laboratories.
Yeast Nutrient: In the brewing industry, ammonium sulfate is sometimes used as a yeast nutrient in the fermentation process.
Compatibility: Ammonium sulfate is generally compatible with other fertilizers, and it can be used in combination with them to provide a balanced nutrient profile.
Safety Considerations: When handling ammonium sulfate, it's important to follow safety guidelines and use appropriate protective equipment to prevent skin or eye contact and inhalation.
Storage: Ammonium sulfate should be stored in a cool, dry place to prevent moisture absorption.
Formalin is a solution of formaldehyde gas dissolved in water. Formaldehyde is a colorless, strong-smelling gas that is commonly used in a liquid form, as formalin, for various industrial applications. Here are some key points about formalin:
Chemical Composition: Formalin is typically a 37% aqueous (water-based) solution of formaldehyde. The remaining percentage is water.
Uses:
Preservation: Formalin is widely used as a preservative for biological specimens. It helps to prevent decay and decomposition, making it essential in laboratories, museums, and medical facilities for preserving tissues and specimens.
Disinfectant: It has antimicrobial properties, and as such, formalin solutions are sometimes used as disinfectants and biocides.
Textile Industry: Formalin can be used in the textile industry for wrinkle-resistant finishes on fabrics.
Health and Safety Concerns:
Formalin is a strong irritant and can be harmful if inhaled, ingested, or comes into contact with the skin.
Prolonged or repeated exposure to formaldehyde can cause respiratory irritation and may be associated with certain health risks.
Proper ventilation and personal protective equipment are recommended when working with formalin.
Regulation:
Due to its potential health risks, the use and handling of formalin are subject to regulations and guidelines in many countries. These regulations aim to ensure safe practices and protect workers and the environment.
Specification
item
value
Brand Name
for dell
Processor Manufacture
Intel
Memory Capacity
16GB
Processor Type
Intel I7
Graphics Card Type
Integrated Card
Hard Drive Capacity
512GB
Screen Size
14.1"
Display Ratio
16:9
Display resolution
1920x1080
Plugs Type
Other
Hard Drive Type
SSD
Video Memory Type
GDDR3
Operating System
Windows 10pro
Processor Main Frequency
2.66GHz
Processor Core
Quad Core
PPI
132
Refresh Rate
65HZ
WLAN
WiFi 802.11 a/b/g
Keyboard language
English
Private Mold
yes
Appearance
Slight scratch
Grade
A+ ( Almost new )
Accessories
With third party accessories
Model Number
latitude e7490
Condition
Original Refurbished
Products Status
Official Refurbished
Quality
99% New/98%new/95%new
Type
Netbook Notebook
Keyword
Second Hand Refurbished Laptop Computer
Style
Ultrathin Portable
Hot sale with
Labtop
Selling point
Ready
Port
3*USB3.0
Network
Unlocked
Model
HP Probook 840 G5
CPU
Intel Core i5 8th
Graphics
AMD Radeon RX 540
Display pixel
1366*768(14.1'')
Camera
Dedicated Card
Operating System
Windows10
Battery
3-cell lithium battery
Colour
Silver
Size
326-234*17.9mm
Weight
1.48kg
Hard disk capacity
8G+256GB
Interface
2xUSB, USB Type-C hdmi Headphone/Microphone 2 in 1 RJ45 SIM card slot Expansion dock interface
Key attributes
Other attributes
Brand Name All Brands Available
Processor Manufacture custom
Memory Capacity custom
Processor Type custom
Graphics Card Type custom
Hard Drive Capacity 200GB,500gb, othres
Screen Size Other
Display Ratio 15:09, other
Display resolution 1280*800, other
Plugs Type US,UK,JP, EU, others
Hard Drive Type SSD, custom
Video Memory Type Hbm2,other
Operating System Window- 10, other
Processor Main Frequency 2.10ghz, other
Processor Core Hexa Core
PPI 261
Refresh Rate 165Hz
WLAN /
Keyboard language English, other
Private Mold no
Appearance No scratch
Grade A+ ( Almost new )
Accessories Without accessories
Model Number All Models Available
Product name Used Laptops
Packaging and delivery
Packaging Details as per customer's want
Port Bangkok
Package Type: as per customer's want
attribute-list
Supply Ability 100000 Piece/Pieces per Month
Product information
Model
HP Probook 840 G5
CPU
Intel Core i5 8th
Graphics
AMD Radeon RX 540
Display pixel
1366*768(14.1'')
Camera
Dedicated Card
Operating System
Windows10
Battery
3-cell lithium battery
Colour
Silver
Size
326-234*17.9mm
Weight
1.48kg
Hard disk capacity
8G+256GB
Interface
2xUSB, USB Type-C hdmi Headphone/Microphone 2 in 1 RJ45 SIM card slot Expansion dock interface
Packaging and delivery
Packaging Details Note: Neutral brown craft box for each unit
K=A strengthens the export standard outer box
Single package size: 41*9.5*36.4 cm
FCL size: 61.5*43*38.5 cm 6/box
Box weight: (depending on item)
Package Type: Note: Neutral brown craft box for each unit K=A strengthens the export standard outer box Single package size: 41*9.5*36.4 cm FCL size: 61.5*43*38.5 cm 6/box Box weight: (depending on item)
