Reddish metal (face-centered cubic); very ductile. It is a good conductor of heat and electricity (next to silver). Widely used in powder metallurgy, electrical carbon products, diamond tool products, electronic materials, conductive materials, chemical catalysts, pharmaceutical chemicals, filters, radiating tubes and other mechanical and electrical parts and electronic aviation field. Product name Copper powder CAS No 7440-50-8 Size 8~12um Sublimation 500 degree Shape Powder MW 63.55 Specific gravity 3.597 g/mL at 25 �°C Applications 1. Used as a raw material for smelting and electrolyzing copper; 2. Used in powder metallurgy parts, diamond saw blades, friction materials, electrical carbon products and chemical catalyst; 3. It is mainly used to make conductive devices and alloys (bronze, brass, white copper, etc.); 4. Mainly used as raw material for copper smelting industry. 5. Reagent, alloy, electroplating.
White powder, apparent density:0.35-0.90g/ml, melting point: 622�°C, easily dissolving in water; water solution is alkaline (PH value of 1% solution is 9.7); can hydrolyze into phosphate in water, has good ability in complexing metal ions; can be used to soften water; has some surfactant properties. 1.In detergents The majority of STPP is consumed as a component of commercial detergents. It serves as a "builder," industrial jargon for a water softener. In hard water (water that contains high concentrations of Mg2+ and Ca2+), detergents are deactivated. Being a highly charged chelating agent, TPP5- binds to dictations tightly and prevents them from interfering with the sulfonate detergent. 2.Food Applications STPP is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular. The United States Food and Drug Administration lists STPP as "generally recognized as safe.". 3.Other Uses Other uses (hundreds of thousands of tons/years) include "ceramics, leather tanning (as masking agent and synthetic tanning agent - SYNTAN), anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze.
Product Description DovaFR P4-red is an allotrope of element. It is nontoxic, odorless and active chemically, though not highly. It is dark red, and unlike white phosphorus, is not phosphorescent. It has a variety of applications in industry, such as matches, fireworks and especially in Flame retardant. Benefits 1. DovaFR P4-red is a fine red or auburn amorphous powderwith high purity. 2. DovaFR P4-red is made of low arsenic Yellow phosphorus (P4 yellow), which makes product more purity than others. 3. DovaFR P4-red is applied in thermoplastics and thermosets as a very effective flame retardant (N-P based). 4. DovaFR P4-red is with excellent properties with its strictly standard. Specifications Characteristics Unit Standard Request Test Method Appearance Red or auburn amorphous powder GB 4947-2003 Yellow Phosphorus %(w/w) 97.5 Min GB 4947-2003 Moisture % (w/w) 0.25Max GB 4947-2003 Free Acid % (w/w) 0.3Max GB 4947-2003 Particle Size mesh Customize GB 4947-2003 Melting Point 280�°C 95Min GB 4947-2003 Density g/ml at 25�°C 2.34 GB 4947-2003 �¹) Delivery specification: The product is monitored on a regular basis to ensure that it adheres to the specified values. �²) Technical data: The technical data are used solely to describe the product and are not subject to regular monitoring. Applications Applications DovaFR P4-red is as an ideal halogen-free Flame retardant in thermoplastic (e.g. polyamide) and thermosets (e.g. epoxy resins or polyurethanes) base on its high content of P. Phosphorus is the element with the most fire retardant effect among all elements so that it can efficiently obtain a fire retardant effect with small quantities. This makes it possible to minimize the degradation of the physical properties of the resin. In other industry, DovaFR P4-red is applied in fireworks, matches, organic synthesis, medicine, synthetic material, pesticide and et. Packaging & Shipping Packaging DovaFR P4-red is supplied in 50 kg iron drums / strike, rolling or throwing strictly forbidden isolated in storage.
BASE OIL SN 100-150-300-500-600-700 Base oil is a type of oil which is used as a base for lubricants. The main element of lubricants (volume wise) is base oil and it forms about 95% of lubricants weight. In some lubricants (Compressor and hydraulic oil) 99% of the oil is consisted of base oil and only the 1% which is left contains additives. Base oils can be reached from oil based and non-oil based resources. Most of the base oils used in the world are obtained from crude oil refining. Most of the compounds which form base oils are Paraphinic, Naphthenic and aromatic compounds. Base oils chemical properties and their impact on the usage of final lubricant: 1 volatility: reduction of the oil, oil thickening, sediments 2 surface activity: foaming, pressure tolerance, air release, emulsion expansion 3 oxidations: sediments, oil thickening, metal oxidation, mud forming 4 Viscosity: Fluidity in lower degrees, energy waste, abrasion protection, proper cooling 5 being soluble: Motor neatness, sealant compatibility, process applications, formulation sustainability The base oil which is extracted from crude oil is called mineral base oil which is categorized in two types (Paraphinic and Naphtshic). Paraphinic oils are consisted of normal hydrocarbons and Iso hydrocarbons. Naphthic oils are consisted of annular full hydrocarbons. Paraphinic oils have certain attributes in comparison with naphthic oils such as;
Properties: Polystyrene (PS) plastic is a naturally transparent thermoplastic that is available as both a typical solid plastic as well in the form of a rigid foam material. PS plastic is commonly used in a variety of consumer product applications and is also particularly useful for commercial packaging. Polystyrene (PS) for Prototype Development on CNC Machines and 3D Printers: Polystyrene is available in sheet stock, rod stock, and in various shapes. It is a great candidate for subtractive machining processes on a CNC machine. Colors are usually limited to clear, white, and black although colors can be added and it is an excellent candidate for external painting. Polystyrene (PS) for� Injection Molding: General Purpose Polystyrene (GPPS) and High Impact Polystyrene (HIPS) are probably the most commonly used PS resins for injection molding. GPPS is clear, but brittle (think of a CD jewel case) while HIPS is opaque and much less brittle. TYPE BRAND CODE MFR,g/l0min USAGE GPPS 525 1.8-2.8 Disposable knife,fork and cupã??Audio/video cassette housing,CD jewel box,toys,medical container. 168 1.8-2.8 535 6 123P 8 152P 3.5 N1841H/N1841 10 525B 9 500N/500NT 5 HIPS 825 4.5 Home appliances,toys, television& hi-fi housing,video cassette housing,food container,yoghurt port 622P 4.5 SR600 3.5 ABS 757 20 Automobile instrument panel, body panel, interior decoration board, steering wheel, sound insulation board, door lock, bumper, ventilation pipe, refrigerator, TV, washing machine, air conditioner, computer 417 20 0215A 20 0215H 20 750A 50 750ASQ 30 150 2 151 18-24 275 10
Leading Black Cumin Seeds Manufacturers, Suppliers & Exporters From India Black cumin seeds also known as kalonji seeds is nigella sativa (nigella seeds) and it belongs to the family ranunculaceae. they are native to south west asia. they are highly preferred in the cosmetic, medicine and food industry for their strong flavored oil extracts. the oil extract is believed to be a nutritive application for hair. they are slightly aromatic and have peppery flavor. it is believed that black seeds are good for health. they are energy booster and overcome fatigues. as exporters of nigella seeds, these are widely demanded in the industry for their rich flavor and wide used in the cooking of food. nigella seeds helps in curing diseases like cervical cancer, high blood pressure, asthma, sore throat, post-surgical scar prevention, radiation damage control etc. HSN CODE: 09093119 Black Seeds Specifications: PROPERTIES VALUES & LIMITS Product Name: Nigella Seeds / Black Seeds / Kalonji Seeds / Black Cumin Seeds Cleaning: Machine Cleaned / Sortex Cleaned Purity: 98% / 99% / 99.5% (As Per Customer Requirements) Moisture: 8% Max Place of Origin: India Broken: 5% Max Salmonella: Absent / 25 Gms Admixture: 1% Min Packaging Details: TYPES OF BAGS QUANTITY PP Bag 25 / 50 KG in New PP Bag Paper Bag 25 KG in New Paper Bag Inside Poly Bag As Per Customer Requirement Container Capacity: TYPE OF CONTAINER QUANTITY 20 FT Container 15-16 Metric Tons 40 FT Container 25-26 Metric Tons
Unraveling the Zesty World of Indonesian Ginger with PT Santoso Corp International Product: Fresh ginger, 100 gram up size, Process: Washed or Unwashed - â? Origin : Indonrsia - Packaging: Cart Box or PP Mesh bags - MOQ: 26 MT Welcome to PT Santoso Corp International where we take immense pride in introducing you to the vibrant and aromatic world of Indonesian ginger As a prominent exporter based in Indonesia we bring you the finest quality ginger sourced directly from our lush spice plantations In this article we invite you to embark on a flavorful journey exploring the origins diverse culinary uses exceptional quality and sustainable practices that define our ginger offerings Indonesia The Land of Spice Diversity Indonesias fertile lands and tropical climate provide the perfect conditions for cultivating a wide variety of spices Ginger scientifically known as Zingiber officinale holds a special place in the countrys culinary and medicinal heritage Our dedication to preserving the authentic essence of Indonesian ginger stems from the rich tradition that this spice carries A Culinary Marvel Ginger in Indonesian Cuisine Indonesian cuisine is renowned for its complex flavors and ginger is an essential ingredient in many dishes From classic favorites like soto and nasi goreng to rich stews and savory curries gingers zesty and slightly sweet notes add depth and warmth to the culinary experience Furthermore gingers versatility extends to beverages where it infuses teas traditional drinks and even cocktails with a delightful kick The Santoso Promise Ethical Sourcing and Superior Quality At PT Santoso Corp International we prioritize the wellbeing of both our consumers and the environment Our ginger is sourced directly from skilled local farmers who practice sustainable agriculture By cultivating ginger responsibly we contribute to the preservation of Indonesias natural resources and support local communities Ginger in Modern Applications From Cosmetics to Natural Remedies Gingers therapeutic properties extend beyond the kitchen finding their way into various industries Gingers essential oil is prized for its invigorating aroma making it a popular ingredient in aromatherapy perfumery and cosmetic products Additionally gingerbased natural remedies and supplements have gained popularity for promoting overall wellbeing
Product Name: Isopropyl myristate Synonyms: Isopropyl Myristate, 96% 25GR; IPM 100; IPM-EX; IPM-R; Radia 7730 (IPM); Isopropyl myristate Vetec(TM) reagent grade, 98%; MYRISTIC ACID ISOPROPYL ESTER MINIMU; ISO-PROPYL N-TETRADECANOATE CAS: 110-27-0 MF: C17H34O2 MW: 270.45 EINECS: 203-751-4 Melting point ~3 �°C (lit.) Boiling point 193 �°C/20 mmHg (lit.) density 0.85 g/mL at 25 �°C (lit.) vapor pressure 230 �°F storage temp. 2-8�°C solubility
Phoxim is a highly effective and widely used organophosphorus insecticide that belongs to the family of carbamates. It is renowned for its exceptional pest control capabilities and its versatility in various agricultural and horticultural applications. Product Description Packaging & Delivery Packaging Detail: For liquid: 200LTR/drum, 20L/drum, 1L/bottle, 500ml/bottle, 250ml/bottle, 100ml/bottle. For solid: 25 kg/drum, 25kg/bag, 1kg/bag or on the requirement of client. Delivery Detail: 20-30days Specifications Common name: Phoxim (BSI, E-ISO, ESA); Phoxime ((f) F-ISO) IUPAC name: Chemical Abstracts name: A-[[(diethoxyphosphinothioyl)oxy]imino]benzene-acetonitrile CAS RN: 14816-18-3 EC No.: 238-887-3 PHYSICAL CHEMISTRY Mol. Wt.: 298.3 C M. F.: C12H15N2O3PS Form: Yellow liquid; (tech., reddish-brown oil). M. P.: 6.1 C B. P.: Decomposes on distillation V. P. 2.1 MPa (20 C) K OW logP = 3.38 Henry 4.18 10-1 PA m3 mol-1 (calc. ) S. G. /density 1.178 (20 C) Solubility In water 1.5 mg/l (20 C). In toluene, n-hexane, dichloromethane, isopropanol >200 g/l. Slightly soluble in aliphatic hydrocarbons, vegetable and mineral oils. Stability relatively slowly hydrolysed; DT50 (est. ) 26.7 d (pH 4), 7.2 d (pH 7), 3.1 d (pH 9) (22 C). Gradually decomposed under u. V. Irradiation. MAMMALIAN TOXICOLOGY Oral Acute oral LD50 for rats: >2000 mg/kg. Skin and eye Acute percutaneous LD50 for rats: >5000 ml/kg. Not irritating to eyes or skin (rabbits). Inhalation LC50 (4 h) for rats >4.0 mg/l air (aerosol). ADI (JMPR): 0.004 mg/kg b. W. [1999]. Toxicity class WHO (a. I. ) II; EPA (formulation) III EC hazard Xn; R22 ECOTOXICOLOGY Birds LD50 for hens 40 mg/kg. Fish: LC50 (96 h) for rainbow trout 0.53, bluegill sunfish 0.22 mg/l. Daphnia LC50 (48 h): 0.00081 mg/l (80% premixes) Bees: Toxic to bees by contact and respiratory action. APPLICATIONS It's a strong contact insecticide, stomach poison and has a clear effect for larva of Lepidoptera, insects of warehouse mosquito, flying and older cotton bollworm, and a long-effect for insects of subterranean. Application on leaf is short-effect and non-remain. Widely used for prevention and cure of insects for cotton, fruittree, vegetable, soyabean, tea, mulberry etc., such as aphid, thrips, soil, it can prevent and cure of black cutworm, click beetle, peach fruit, borer etc., and dispoes of seed of whear, corn & peanut, also for insects of soil, such as mole cricket, click beetle and so on spraying it can prevent and cure of mosquito and flying etc.
Antifoams are chemical agents which are designed to control the formation of foam. A buildup of foam could potentially cause a number of issues during various industrial processes, including defects on surface coatings and affecting the efficiency of filling lines. The additive is used to prevent the formation of foam. The terms defoamer and antifoam are often used interchangeably. However, antifoams are designed to prevent foams, whereas defamers eliminate existing foam. Antifoams hold applications in a wide range of industries including wastewater, food processing, paints and coatings, textiles and adhesives. Finding the right product for you is ultimately determined by the application needed. A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam.
Remark: 1,Compressed bales 2,100% dry and clean 3,100% furniture foam 4.Quality assurance We have 14 different kinds of foam scrap . Application Its mostly used for the production of re-bonded foam for furniture, mattress, bedding, pillow, Insoles, sports padding, carpet padding and carpet underlay or used for the production of shredded foam for pillow fillings, cushion fillings, toy fillings.
Thermal Breaking Insulation Foam With Double Sided Aluminum Building Code of Australia now requires certain buildings incorporating steel frame roofs� between the roof or wall cladding and steel frame to � reduce thermal bridging and conductivity between these buildings elements. The product structure is two sides of aluminum foil, the middle layer of XPE foam Foam With Double Sided Aluminum Main function 3-in-1 multipurpose solution: insulation + thermal break + vapour barrier. Advanced thermal performance reflecting up to 95% radiant heat, allowing for cooler internal conditions in hot and humid climates. Suitable for use as a thermal break for steel framed constructions in accordance with NCC requirements. Appropriate for use in a range of commercial and residential building applications. Thermal Breaking Insulation Foam Product features Maximum durability and increased tear resistance. Aids in the prevention of condensation. Allows for easy and rapid installation. Foam With Double Sided Aluminum manufacturer Application Fields Widely used in the construction industry Outdoor roof, etc. Please see the attached test reports of 201907310001 and 201907310002 Hot sale various high quality PE foam roll, XPE foam, compounding foam, heat insulation filler foam from China leading manufacturer. Our products are efficient, cost effective and deliver more benefits. Welcome to choose us!
Polyurethane Foam Products has following characteristics 1�Shaped in one shotcan be customized into all kinds of shapes 2�impact resistance, High wear resistance 3�The density can be adjusted,light weight Polyurethane Foam Products has following applications Polyurethane Foam Products is widely applied to automobile industry, home decoration industry, fitness medical equipment The price is determined by the customized product
Product Description Chemical cross linked PE foam (xpe foam), is made of low density polyethylene resin with crosslinking agent and foaming agent through high temperature continuous foaming, high tensile strength, bubble hole fine, colorless, tasteless and non-volatile chemical corrosion foam Main function 1. Good waterproof and moisture-proof performance; 2. Good shock absorption and buffer performance 3. Good thermal insulation performance 4. Good sound insulation performance; 5. Good weather resistance, aging resistance and corrosion resistance; 6. XPE is environmentally friendly, non-toxic and light material; shock absorption Foam Product application field 1. Heat preservation and insulation performance, corrosion resistance, strong weather resistance, is the ideal material for air conditioning heat preservation 2. Sound insulation, heat insulation, moisture resistance, and light weight make XPE foam widely used in the field of automotive interior decoration. Such as car duct, fender, door membrane, etc 3. sound insulation Foam and shock absorption performance, widely used for building thermal insulation, floor sound insulation and shock absorption, wall collision buffer, wall sound insulation, waterproof and moisture-proof and other purposes. noise reduction Foam Product Density and Size Conventional density: 33KG /M�³ 50KG/M�³ 67KG/M�³ 100KG/M�³ etc hardness 0.5mm-10mm Test data Here is the test data of the commonly used density of about 33KG. thickness 10mm Hot sale various high quality PE foam roll, XPE foam, compounding foam, heat insulation filler foam from China leading manufacturer. Our products are efficient, cost effective and deliver more benefits. Welcome to choose us!
Description of Platinum Cure Silicone Foams Platinum Cure Silicone Foams is a soft, two-component platinum silicone flexible foam that is versatile and easy to use. HY-F663 Platinum Silicone Foams expands 3.5 times its original volume and develops a uniform 20 lb./cu. ft. cell structure (320 kg/m3). Vibrant colors can be achieved by adding Silc-Pig silicone color pigments.Cured foam is high heat resistance (will resist up to 350°F/176°C), water resistant, UV resistant and resists oxidation and ozone degradation. Typical Applications for Platinum Cure Silicone Foams Platinum cure Silicone Foams can be used for a variety of industrial and special effects applications including making foam filled appliances, padding/seat cushioning, orthotics/orthopedics, potting and encapsulation of electrical circuits and vibration dampening. Characteristics of Platinum Cure Silicone Foams A. excellent foaming effect B. Light weight and effective resilience C. Safety and environmental protection,poisonless and harmless D. Thermostable and cold-resistant E. Insulation and good stability PROCESSING RECOMMENDATIONS of Platinum Cure Silicone Foams 1. preparing:A(silicone ),B(curing agent) 2. Weighing and mixturing:The percentage of A and B is 1:1, and then mixing and stirring 3. Waiting: waiting for about 24h 4. production Package:20kg/pail + 20kg/pail and 200kg/pail + 200kg/pail. Self-life:8-10 months Price:8~20usd/kg.(contact me for details) Specific parameters, price and delivery details, etc. welcome to call! Michael
Expansion Joint Filler Foam is a cross linked, closed cell, polyethylene foam that is flexible, compressible, durable, tear-resistant, and moisture resistant. It has good recovery from compression, is resistant to common acids, alkalies, and chemicals, and is CFC free. This industrial foam product has a variety of applications in filling an expansion joint gap in road, bridge and building construction, and wherever low load joint fillers are required in concrete and construction work. industrial Filler foam can be used as a gap filler in any area where concrete expansion, ground or building movement would otherwise cause damage without the gap. This expansion joint filler foam will also act as a backup strip to support sealants in floor and wall joints and can be used as lagging to create space around pipes and vessels. All rolls are 25 metres long and 10mm thick, and are available in widths from 50mm to 300mm. All roll widths are available in plain, or with adhesive back for easy application to walls and slab edges. Each roll has a 10mm zip-strip that can be removed prior to the gap being filled with flexible sealant. Flexible Foam Expansion Joint Foam come in multi-packs as shown below. Prices are for multiple rolls (per pack). It usually comes in the following sizes 50mm wide = 20 rolls per pack (500m) 75mm wide = 15 rolls per pack (375m) 100mm wide = 12 rolls per pack (300m) 125mm wide = 9 rolls per pack (225m) 150mm wide = 8 rolls per pack (200m) 200mm wide = 6 rolls per pack (150m) 250mm wide = 5 rolls per pack (125m) 300mm wide = 4 rolls per pack (100m) Roll Dimensions: 25m long x 10mm thick x 50-300mm wide. For expansion joint foams in other thicknesses in sheet and roll form,and cut to profile, please contact our office directly. Hot sale various high quality PE foam roll, XPE foam, compounding foam, heat insulation filler foam from China leading manufacturer. Our products are efficient, cost effective and deliver more benefits. Welcome to choose us!
Description of Platinum Cure Silicone Foams Platinum Cure Silicone Foams is a soft, two-component platinum silicone flexible foam that is versatile and easy to use. HY-F663 Platinum Silicone Foams expands 3.5 times its original volume and develops a uniform 20 lb./cu. ft. cell structure (320 kg/m3). Vibrant colors can be achieved by adding Silc-Pig silicone color pigments.Cured foam is high heat resistance (will resist up to 350°F/176°C), water resistant, UV resistant and resists oxidation and ozone degradation. Typical Applications for Platinum Cure Silicone Foams Platinum cure Silicone Foams can be used for a variety of industrial and special effects applications including making foam filled appliances, padding/seat cushioning, orthotics/orthopedics, potting and encapsulation of electrical circuits and vibration dampening. Characteristics of Platinum Cure Silicone Foams A. excellent foaming effect B. Light weight and effective resilience C. Safety and environmental protection,poisonless and harmless D. Thermostable and cold-resistant E. Insulation and good stability PROCESSING RECOMMENDATIONS of Platinum Cure Silicone Foams 1. preparing:A(silicone ),B(curing agent) 2. Weighing and mixturing:The percentage of A and B is 1:1, and then mixing and stirring 3. Waiting: waiting for about 24h 4. production Package:20kg/pail + 20kg/pail and 200kg/pail + 200kg/pail. Self-life:8-10 months Price:8~20usd/kg.(contact me for details) Specific parameters, price and delivery details, etc. welcome to call!Â
Thermcoat Thermal & Acoustic Insulation Pu Spray Foam (Gun Use) A PU Foam for top quality heat and sound insulation at buildings and houses. Provides a unique, monolithic thermal insulation application without junctures, seams and gaps. An innovative alternative to traditional building insulation methods such as polystyrene heat insulation boards, glass wool and rock wool. Single-component product used with an applicator gun. It does not contain any propellant gases which are harmful to the ozone layer. Excellent adhesion to all kind of building materials, Can be applied easily to uneven, hard to reach surfaces where it is not possible to use traditional insulation materials, Excellent thermal insulation value (0.025 W/(m.K), Elimination of thermal bridges, Elimination of the dew point, Yield up to 3meter with 1.5cm thickness for one layer if applied from a distance of ~40cm with normal application speed, No need to use mechanical fastening elements after use, Over paintable,
Medical PVA Foam Product details Name: PVA swab Material: PVA with plastic stick,etc. Size: customized Color: white,pink,green, blue, yellow,customized. Packing: customized dentist swab Application: medical using, Home care, etc Shape: customized Certificate: CE, ISO,SGS,FDA, FSC Payment: TT, LC,Paypal,Payoneer etc OEM/ODM available Quality assurance: 1. Skillful staff, veteran management, advanced machine, mature technology 2. Standardized production line 3. Manufactured in Class 100,000 Cleanroom Medical PVA Foam for cleaning, cosmetic and medical purposes. we are the manufacturer with many years of experience, welcome to contact us.
Products Name:NPWT foam oral hygiene swab Features and advantages 1Medical dressing film is comfortable for people . 2Reduce tissue oedema and hypoxia state; Back to normal tissue fluid balance. 3Promote cell membrane expansion and wound lymphatic backflow; Stimulate the blood vessels growth in and healthy granulation tissue formation. 4 Local vacuum goes against bacteria survival; Control faster local infection. 5Maintain wound into humidity balance; Provide a good healing environment. 6Medical Sponge Help graft with wounds attaching; Reduce scar formation. 7 Reduce the time of dressing change; Shorten the time of treatment, and relieve pain. 8 Effective avoid crossing infection, pollution. Product Usage: The negative pressure drainage of trauma, burns, wounds, bedsore and diabetic foot. Medical PU Foam Applicable Scope Traumatology department; Orthopaedics department; Burns surgery; General surgery department