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Yeykim Ltd

Supplier From Turkey
Dec-22-08
Supplier : Concrete and mortar additives, repair assembly anchorage products, water insulation and insulating products, outer face heat insulation systems, tiles ceramics adhesives, self leveling, cast lubricants, cement cures and surface protectors, floor vinyl parquent pvc adhesives, industrial floor systems

Established: 1999

Verification Status



Contact Details:
Kayabasi Mah, Samlar Koyu, Kurukavak Mev
Pafta 3 Ada 129
Kucukcekmece 34600
Istanbul Turkey


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More Items Similiar to: Yeykim Ltd

GOLD Member
May-02-22
 
Product Name: Ferrous Sulphate Heptahydrate
Molecular Formula: FeSO4. 7H2O
CAS No.: 7782-63-0
Mol Weight: 278.05

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
GOLD Member
Aug-16-22
 
Product Name: Sodium permanganate
Use level: Industrial
Content: 40 (%)
CAS Number: 10101-50-5
Molecular formula:NaMnO4
Molecular Weight: 141.93

Appearance: purple liquid. A density of 1.36 ~ 1.39 g / cm3, soluble in water, ethanol and ether, soluble in liquid ammonia. Decomposition in alkali. Strong oxidizing. And chemical properties similar to potassium permanganate.

Purposes: as oxidants, disinfectants, fungicides and phosphorous antidotes. Toluene is also used to manufacture saccharin, o-toluene sulfonamide and organic synthesis and purification of phenol wastewater treatment. Can be used for circuit boards, metal surface cleaning, the conductive film cleaning to remove grease, electrolytic manganese dioxide, chemical fiber finishing, electroplating addition to hydrogen sulfide and other odors, as well as water treatment and so on.

Packaging and storage: Industrial Pails barrel, net weight 25kg plastic drum, 250kg steel-plastic composite barrels, 1250kg IBC barrels packaging. Store in a cool dry place.

Quality Standard:  
Items index
Sodium permanganate (NaMnO4) Content / (%) 40
Water-insoluble content / (%) 0.01
Potassium (K) content / (%) 0.22
pH value 6 ?8
Density / (g/cm3) 1.36 1.39
Chloride (Cl) content / (%) 0.02
GOLD Member
Aug-06-22

2 - Naphthol

$2.30K
MOQ: Not Specified
 
2-Naphthol Basic information
Chemical Properties Application Preparation
Product Name: 2-Naphthol
Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams
CAS: 135-19-3
MF: C10H8O
MW: 144.17
EINECS: 205-182-7
Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics
Mol File: 135-19-3.mol


2-Naphthol Chemical Properties
Melting point 120-122 C(lit.)
Boiling point 285-286 C(lit.)
density 1,28 g/cm3
vapor density 4.97 (vs air)
vapor pressure 10 mm Hg ( 145.5 C)
refractive index 1.5762 (estimate)
Fp 153 C
storage temp. Refrigerator
solubility methanol: soluble1g/10 mL, clear, colorless to light yellow
pka 9.51(at 25C)
form Powder, Crystals or Granules
color White
PH Range Non& uorescence (8.5) to blue & uorescence (9.5)
Water Solubility 1 g/L (20 C)
�»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm
Merck 14,6384
BRN 742134
Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol.
Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders
InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N
CAS DataBase Reference 135-19-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthalenol(135-19-3)
EPA Substance Registry System 2-Naphthalenol (135-19-3)

Safety Information
Hazard Codes Xn,N
Risk Statements 20/22-50
Safety Statements 24/25-61
RIDADR UN 3077 9/PG 3
WGK Germany 2
RTECS QL2975000
F 8
Autoignition Temperature 430 C
TSCA Yes
HazardClass 9
PackingGroup III
HS Code 29071590
Hazardous Substances Data 135-19-3(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg


2-Naphthol Usage And Synthesis

2-Naphthol Preparation Products And Raw materials
GOLD Member
Sep-12-19
 
Commodity:Sodium persulfate
Molecular Formula : Na2S2O8
Molecular weight : 238.13

Description
Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Transportation
Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505
Water hazards class 1(slight water hazard)
All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.
Package
(1) In 25kgs net multiple paper bags with one PE bag inner
(2) In 25kgs net PE bags
(3) In 25kgs net woven bags with two PE bags inner
(4) In 1000kgs net big woven bags with one PE bag inner
The above package is also with a pallet 1000kgs each.
Storage
NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect.
Application
Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc.
Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors;
cleaning and etching of printed circuits),activation of copper and aluminium surfaces.
Cosmetics : Essential component of bleaching formulations.
Paper : modification of starch,repulping of wet - strength paper.
Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans).
Others :
- Chemical synthesis
- Water treatment(decontamination)
- Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg)
- Disinfectant
ITEMS SPECIFICATIONS
Appearance white crystalline salt
Assay 99.0% w/w min
Active oxygen 6.65% w/w min
Chloride and chlorate(as CL) 0.005% w/w max
Ammonia (NH4) 0.05% w/w max
Manganese(Mn) 0.0001% w/w max
Iron(Fe) 0.001% w/w max
Heavy metals(as Pb) 0.001% w/w max
Moisture 0.05% w/w max
Decomposition of the product as supplied at above 65C
Recommended storage temperature Normal Temperature
Storage stability as from date of delivery 12 months
GOLD Member
Jul-11-22
 
1,Name: Sodium nitrite
Molecular formula: NaNO2
Formula weght:69.00
2Property: (1) ordinary sodium nitrite: white little crystals or light yellow
 (2) dry powder sodium nitrate: white crystal,non-caking, showing loose status.
Density:2.168. No odor, slightly salty. It is liable to deliquesce, dissolved in water,soluble in liquid ammonia,slightly soluble in ethanol and glycerin,Melting Point:271. Decomposition temperature is 320. It has oxidability and also has reducibility. It will slowly be oxidized into sodium nitrate in atmosphere, it can form nitrogen compound with nitrilo at low temperatures.
3Usage:It has been widely used in making nitro-compound and azo dye, mordant of textile dyeing, bleaching agent, metal heat finishing agent, cement early strength agent, and deicing agent etc.
Note: The product should be stored in a cool, dry place to prevent it from moisture, heat and sunlight. This product can not be mixed with strong reductant, inflammable and explosive materials, food, feed and additives. â?¢ This product is toxic and should be properly kept and can not be eaten.
4 Specification: (Technical Standards:GB2367-2006)
Item Unit Molten salt G High G First G Qualified G Dry powder G
Assay % 99.3 99.0 98.5 98.0 98.5
Sodium nitrate % 0.6 0.80 1.00 1.90 0.80
Chlorides % 0.03 0.10 0.17 -- 0.1
Water insolubles % 0.02 0.05 0.06 0.10 0.06
Moisture % 1.0 1.4 2.0 2.5 0.2
Loose degree -- -- -- -- 95
5,Package: net 50kg net each in plasic woven inner plasic bag, or according to customers requirement.
GOLD Member
Jul-11-22
 
1.Name: Sodium nitrate
Chemical formula: NaNO3
Formula weght:84.99
2.Property:
(1) ordinary sodium nitrate: white little crystals or light yellow
(2) dry powder sodium nitrate: non-caking, showing loose status.
Density:2.257. It is liable to deliquesce, dissolved in water, soluble in liquid ammonia, slightly soluble in ethanol and glycerin, Melting Point:308. While being heated up to about 380 it will decompose and release oxygen and turn into sodium nitrite,as the heating goes on, it will decompose into oxygen, nitrogen and nitrogen oxide. It has strong oxidability and can cause combustion explosion if being mixed with organic substance, sulfur, sodium nitrate etc.

3. Usage:  it has been wildly used in the glass industry, dye, dynamite, metallurgy, machinery, ceramic etc.

4. Specification: (Technical Standards:GB/T4553-2002)
Item Unit High G. First G. Qualified G. Dry powder G.
Assay % 99.7 99.3 98.5 99.3
Sodium nitrite % 0.01 0.02 0.15 0.02
Chlorides % 0.25 0.30 -- 0.25
Water insolubles % 0.03 0.06 -- 0.03
Moisture % 1.0 1.5 2.00 0.2
Carbonates % 0.05 0.10 -- 0.1
Iron % 0.005 -- -- 0.005
Loose degree -- -- -- 95
5.Package: net 25kg/50kg net each in plasic woven inner plasic bag,or 500kg net each in flexible container.
GOLD Member
Feb-02-18
 
Commodity: Sodium Hydrosulfite
Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate
CAS No.: 7775-14-6
Molecular Weight: 174.10
Chemical Formula: Na2S2O4

Product Description
Appearance: White, crystalline powder.

Product Feature
Odor: Slight irritative.
Specific Gravity: Unavailable
Solubility: Soluble in water.
Density: 2.19
pH: 6-7
pH Test-Method: PH test paper.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: >300 C Decomposes.
Vapor Pressure (mm Hg): No information found.
Bulk Density: ~0.9
Evaporation Rate (BuAc=1): No information found.

Application
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. in mineral, the compound of thiourea and other sulphides.
5. as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

Packaging 50kg/100kg net in iron drums with double PVC bags

Product Specification/Models
NDEX 90%, 88%, 85%. FOOD ADDITIVE
Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal
calculated as Pb, 1ppm
Water Insolubles05%
Shelf Life(month)12
GOLD Member
Feb-20-21
 
APPLICATION:
1. Sodium percarbonate is an environmentally friendly,high-performance low-temperature oxygen bleaching agent , and is widely used in industry as well as in daily life .
2. Sodium percarbonate is increasingly replacing sodium perborate for uses in detergent , bleaching powder, wood floor cleaner, carpet cleaner and other household and personal care products.
3. Sodium percarbonate also has function as a disinfector , oxygenation agent , and is utilized in industrial waste water treatment, sterilization, and first-aid .
4. As oxygenation agent in aquaculture
5. As Pulp bleaching agent for the paper industry
6. As bleaching agent and dyeing agent in the textile industry
GOLD Member
VERIFIED
Mar-11-24

Concentrated Melamine Formaldehyde Resin

$100
MOQ: 100  Metric Tonnes
Supplier From Dubai, United Arab Emirates
 
Melamine formaldehyde resin is a type of thermosetting plastic that is formed by the polymerization of melamine and formaldehyde. This resin is commonly used in various applications, including laminates, coatings, adhesives, and molded products. When you refer to "Concentrated Melamine Formaldehyde Resin," it suggests a formulation with a higher concentration of the resin, which may be used in specific industrial processes.
Composition: Melamine formaldehyde resin is typically produced by the reaction of melamine (a nitrogen-rich compound) and formaldehyde (a reactive aldehyde). The reaction results in a highly cross-linked polymer with excellent hardness, chemical resistance, and heat resistance.
Properties:
High Heat Resistance: Melamine formaldehyde resin exhibits high heat resistance, making it suitable for applications where exposure to elevated temperatures is a concern.
Hardness and Durability: The resin imparts hardness and durability to the materials it is used in, making it valuable for products like laminates and molded items.
Chemical Resistance: Melamine formaldehyde products are known for their resistance to chemicals and staining.
Applications: Laminates: Melamine formaldehyde resin is commonly used as a coating for laminates, which are widely used in furniture, countertops, and decorative surfaces.
Molded Products: It is used in the production of molded items, such as kitchenware, dinnerware, and electrical components.
Adhesives: The resin is used in the formulation of adhesives for bonding wood and other materials.
Concentration: The concentration of melamine formaldehyde resin can vary based on the specific formulation required for a given application. A concentrated form may be used to achieve specific performance characteristics or to facilitate easier handling and storage.
Manufacturers and Suppliers: Different manufacturers may produce concentrated melamine formaldehyde resins with varying specifications. It's essential to consult with the specific manufacturer or supplier for detailed information about the product's formulation, recommended uses, and handling guidelines.

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