Category: Chemistry
Showing 1–16 of 112 results
1/2x 0.8mm 1Kg ER70S-6 / ER50-6 Carbon Machine Steel Gas Shielded Welding Wire
$59.56ChemistryAdd to cartDescriptionWhen welding, the welding wire has fast melting speed, stable arc, less welding spatter, beautiful weld bead formation, strong anti-oxidation and corrosion resistance, low sensitivity of cladding metal pores, and good all-position welding process.Uses:GF is used in large-scale hydraulic steel structures, ships, power stations, boilers and pressure vessels, petrochemicals. Welding of 600Ma very low alloy …
1/2x 0.8mm 1Kg ER70S-6 / ER50-6 Carbon Machine Steel Gas Shielded Welding WireRead More
1/35 Stainless Steel AFV Digital Camo Spray Template Stenciling Leakage Spray Mould
$14.16ChemistryAdd to cartSpecificationMaterial:Stainless steelColor:Stainless steelPattern:Modern AFV Digital CamoScale:1/35Size:8x8cmApplication:Gundam model toolFeatures Stainless steel material, not easy to rust Long life and durable Easy to usePackage include 1 x Spray Template
1/4 inch Exhaust Seal Valve for Home Brew Fruit Wine Alcohol Distiller Part
$16.19ChemistryAdd to cartDescription1/4 Inch Exhaust Seal Valve Distiller Part is suitable for Home Brew Fruit Wi ne Alcohol.SpecificationColor:TransparentMaterial:Metal+PlasticFit for:Alcohol DistillerWeight:46gSize:53*210mmConnector:1/4inchPackage included1 x Exhaust valve
10 OZ Graphite Crucible ingot Bar Combo Mold for Silver Gold Melting Casting
$38.46ChemistryAdd to cart10 OZ Graphite Crucible Ingot Bar Combo Mold For Silver Gold Melting CastingDescritpionMaterial:graphiteSize:72X57X12mm/2.83inch X2.24inch X0.47inch(L*W*H)Slot depth:4/3/1.5mmCasting Cavity Capacity:10ozGraphite IndicatorBulk densit ≥1.82 g/cm3Electric resistivity ≥9 μ Ω mBending strength ≥45 Mparesist compression ≥65 MpaAsh ≤0.1 %particle ≤43 um(0.043 mm)FeatureGold graphite ingot moldMade from high density fine grain graphiteSet multi casting capacity in one moldPerfect for gold …
10 OZ Graphite Crucible ingot Bar Combo Mold for Silver Gold Melting CastingRead More
1000 x 2.0MP Magnifier USB Digital Electronic Microscope 4.3 inch LCD Display
$147.81ChemistryAdd to cartSpecificationsModel Name:DM4Screen size:4.3 inch high screenSensors:high performance optical wafersMain control chip:special master control 16Bit DSPLensoptical size:1/6.5inchPhoto resolution:VGA; 1.3 M; 2 M; 3 MVideo resolution:VGA; 720PData format:JPG/AVIFocus mode:Manual operationPicture format:JPG/BMPMagnification times:1000Light source:8 LED lights (adjustable brightness)Focus range:10~40mm(to watch the distant view)PC resolution and image transfer rate:640*480/26fps ,1280*720/26fpsWhite balance AutomaticExposure AutomaticPC operating system:for Windows xp, for win7,for …
1000 x 2.0MP Magnifier USB Digital Electronic Microscope 4.3 inch LCD DisplayRead More
1000X 8 LED Light Adjustable Dimmer Practical Digital Microscope
$31.94ChemistryAdd to cartSpecification-Color:Black-Size:112*33mm(4.4*1.29 inch)-Controller:High-speed DSP-Interface:USB-Flash control:50Hz/60Hz-Best video resolution:1600*1200-Magnification:1000X-LDE lamp:8LED-Image format:JPEG/BMP-Video format:AVI-Support system:windows-Hardware requirements:Petium and above, 20M hard disk, CM ROM -drive, 128MB memory, Direct X VGA card-Computer interface:USB2.0&USB1.0-Software compatibility:TWAIN/VFW, etc.Features-8 LED Light ,Photo button can quickly capture pictures for easy operation-Equipped with 360-degree rotating stand, accurate inspection effect-Industry:Inspection and inspection of PCB circuitboard, precision -machinery, printing, SMT …
1000X 8 LED Light Adjustable Dimmer Practical Digital MicroscopeRead More
100PCS Rugged Wooden Commemorative Coin Display Case Capsule Holder Storage Collection Box
$64.79ChemistryAdd to cartSpecificationMaterial:Solid woodSize:28x19x4.5 cmCapacity:100 pcsApplicationCommemorative coin collectionFeatures-Adjust the excess gasket by the diameter of the commemorative coin, and the applicable specifications are wider.-Large capacity, store 100 commemorative coins.-Solid wood, sealed with aprons, double protection, resistant to oxidation.Package Include1 x Wooden Box1 x Tote Bag100 x Round Box100 x Gasket
10Pcs 2.2inch Plastic Mesh Net Basket Hydroponic Aeroponic Flower Container Grow Pot Planting Basket
$14.16ChemistryAdd to cartSpecification Material:Plastic Height:55mm Weigh:3gThe upper edge of the outer diamete:55 mmThe outer diameter:48 mmThe lower end of the outer diameter:33 mmFeatures1.Good permeability:these net cups are designed with slotted mesh, can promote a more efficient plant growth through aeration.2.Growing by its own way:net pot with holes in the bottom, produce healthy roots with even drainage, which …
11inch Human Body Model Torso Anatomy Doll 15 Removable Parts Skeleton Visceral
$65.80ChemistryAdd to cartFeatures28cm Human Torso Viscera Heart Brain Skeleton Model with 15 Parts Removable for School Teaching Kit, placed on a plastic base for easy observation, detachable torso anatomy model with enough details,teaching and research15 parts:Including torso, brain(2 parts),heart, esophagus trachea and aorta, lung (4 parts), skull cap,stomach, diaphragm, liver, pancreas and spleen, intestine.A total of 15 …
11inch Human Body Model Torso Anatomy Doll 15 Removable Parts Skeleton VisceralRead More
12 Holes Soilless Cultivation Hydroponic Box Solar Power Flower Plant Site Hydroponic System Pump Equipment
$70.67ChemistryAdd to cartSpecificationsMaterial:PPColor:MulticolorType:12 HolesSolar Panel Power:7V 1.5WPump Power:7V 1.2WMax Flow:200L/HMax Water Height:70cm /27.56′(appr.)Life Time:≥10000 hoursDelay:≤3s(the pump will automatically restart within 3 seconds when the sun is shining)Solar Panel Size:(L)X(W) 11x11cm /4.33’x4.33′(appr.)Hydroponic Box Size:(L)X(W)X(H) 38x28x14cm /14.96’x11.02’x5.51′(appr.)Features Solar panel powered water hydroponic system grow box with bump The overall sense of strong, elegant and beautiful shape, conducive to a …
1200x Early Childhood Science Toy Biological Microscope LED Student Microscope
$30.36ChemistryAdd to cartSpecificationMaterial:Acrylonitrile Butadiene Styrene (ABS)Color:blackMagnification:1200XSize:22x13cmBattery:2xAA (Not included)Light source:LEDConverter:Three-hole camberFeatures Safety, intelligence, health Complete product functions, easy to operate Clear imaging and practical With LED light A good choice for learning, playing together, children’s toysApplication:Student microscope (5-12 years old)How to use (Instructions)Instructions1. Insert the battery and turn on the power switch.2. Turn the focus knob counterclockwise to …
1200x Early Childhood Science Toy Biological Microscope LED Student MicroscopeRead More
125Pcs Organic Chemistry Molecular Structure Medical Model Kit General & Organic Molecule Atom Bonds Student Set
$44.54ChemistryAdd to cartDescriptionThis set includes 125 pieces of durable and fine quality plastic components, virtually indestructible, and come in a sturdy plastic case for storage.SpecificationModel:TW-1 Material:PP (atomic), LDPE (connection key), ABS (box)Link Length:Short, Medium, LongFeaturesThe organic chemistry curriculum, the organic molecular structure model, stick type molecular structure model, can take a variety of common and more complex …
136Pcs Chemistry Molecular Structure Model Kit General & Organic Chemistry Atom Bonds Molecules Medical Set
$44.54ChemistryAdd to cartDescriptionThis set includes 136 pieces of durable and fine quality plastic components, virtually indestructible, and come in a sturdy plastic case for storage.SpecificationModel:ZX-1032Material:PP (atomic), LDPE (connection key), ABS (box)Link Length:Short, Long, ProportionFeaturesThe organic chemistry curriculum, the organic molecular structure model, stick type molecular structure model, can take a variety of common and more complex C, …
15Pcs Large Microwave Kiln Kit Glass Fusing Kit DIY Jewelry Art
$218.69ChemistryAdd to cartSpecificationKiln material:Ceramic FibreGlass:coe90Kiln SizeInner Dia.:13.5cmInner Height:4.5cmOuter Dia.:19.5cmOuter Height:11cmFeature– Safe, the max temp of the kiln inside could be very high, but the outside temp is below 80℃.– Easy to use, making craft at home with your microwave oven– Creat your unique jewelry, very cool gift for your families and friends~Notice1.The kiln paper is necessary. Please …
15Pcs Large Microwave Kiln Kit Glass Fusing Kit DIY Jewelry ArtRead More
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LM338K 3A Voltage Digital Display High Power Adjustable Linear Module Buck Step Down Regulator
$29.73Power Supply ModuleAdd to cartParameterBoard size:9.6cm x 5.8cmDC input:3-35 voltsAC input:1-25 voltsOutput DC:1.2-30 volts; kit weight:155 gramsMaximum current:3 amps, (LM338K theory can go to 5A, we use domestic LM338K, up to 3A, import disassemble up to 5A)Input and output minimum differential:3 voltsMaximum power consumption:50WAbout LM338K maximum power calculationFor example, input 25V, output 18v load current 2A, then the power …
5Pcs Yushun LS-5S 24V 5W AC to DC Switching Power Supply Module Monitoring Power Supply with White Shell
$32.16Power Supply ModuleAdd to cartFeatures1. Wide input voltage range2. With overload, short circuit and over temperature protection functions3. Small size, high efficiency4. Full load aging test5. Ultra-low output rippleSpecificationBrand:EshionModel:LS-5SVoltage:24V200mA LS-5S24Modulation method:pulse width modulation (PWM) typeTransistor connection mode:single-endedInput voltage:86-264VInput voltage range:100~264V ACOutput /Rated power:5WOutput voltage:24VWork efficiency:75%~76%Output ripple noiseVoltage adjustment rate:÷1%Load regulation rate:÷1%Product Certification:CEOutput current:0.2AFrequency range:47~63HZWorking temperature:-20→~+50→Dimensions:58mm*30mm*22mmWeight:25g(1pcs)Package included5 x Power Supply …
SIM7020C NB-IoT Expansion Board Full Netcom Module Support for Arduino LWM2M/COAP/MQTT/TCP/UDP/HTTP/HTTPS
$52.47Expansion Board & ShieldAdd to cartFeatureOnboard Raspberry Pi interface, can be directly inserted into any version of Raspberry PiSupport LWM2M/COAP/MQTT/TCP/UDP/HTTP/HTTPS and other protocol communicationsSupport domestic OneNET/telecom cloud/aira cloud platformOnboard USB interface, can be used for power supply or software debuggingLead out UART control interface, can be used to connect Arduino/STM32 and other main control boardsOnboard level conversion circuit, the default …
10pcs 3.3V 5V 8 Bit Blue Common Anode LED indicator Display Module DIY Kit
$21.59Display ScreenAdd to cartDescriptionIt can be inserted directly into Breadboard,Ideal for linking up to your Arduiuo UNO Mini Nano Mega2560 DUE Breadboard etc,or others MCU ( AVR STM32 ARM7 ARM9 ARM10 ARM11 PIC C8051 STC MSP430 FPGA/CPLD etc.) SpecificationsColor:BlueWorking Voltage:DC 3-24VPolarity:Common anodeInterface:2.54MM with PIN/2.54MM no PINSize:22.86 x 14.13 x 2.11 mmWeight:1.3gApplicationMCU/ARM/FPGA/Atmega328pPLC MotorElectronic diy kitESP8266/nodemcuNANO/UNO/MEGA2560/BreadboardRaspberry pi 4/robotPackage Incldued10 x …
10pcs 3.3V 5V 8 Bit Blue Common Anode LED indicator Display Module DIY KitRead More
infrared Light Board 42*IR LED Board for CCTV Camera Night Vision 850nm DC12V
$6.55LED BoardAdd to cartDescription– Infrared IR LED boards for CCTV cameras night vision.– Power supply exceeds DC13V may greatly reduce the LEDs operating life.SpecificationsBoard Diameter:60 mminner Diameter:32mmPower Supply:DC12V / 220mA Operation Temperature:-10→ to +50→LED Lamps / Bulbs Size:5mmIR Lights WaveLength:850nmPackage Included1 x 42*IR LED Board for CCTV Camera
10pcs XY-SP5W 5128 Mini Class D Digital Amplifier Board 5W Mono Audio Power Amplifier
$15.27Amplifier BoardAdd to cartFeatures∵ Operating current:>1A∵ Power Output:3~5W∵ Drive Speaker:4~8∵ SNR:85dB@ VDD=5V,Vorms=1V∵ Class D Audio Amplifier∵ Low Distortion, Low Noise FloorNotes1.2.5V to 5.5V operation from a single supply ,and damaged upper 5.5V.2.A 5V/1A DC adapter is recommended to supply the module.3.The circuit will be damaged if the power polarity is oppsite.4.4 3W Speaker is recommended5.With mute fuction, Mute …
10pcs XY-SP5W 5128 Mini Class D Digital Amplifier Board 5W Mono Audio Power AmplifierRead More
10Pcs 2 Key Press Film Switch Module Single Chip Microcomputer Extended Keyboard Electronic Switch Module
$16.11Other Module BoardAdd to cartSpecificationsProduct thickness:1.00mm (+0.02mm)Panel material:PCBack adhesive tape:white glueButton strength:280gTemperature:-15 ° C / +65 ° CCircuit material:0.125mm PET transparentButton package type:button planeButton package height:0.3mmKey life:>100,000 timesLoop resistanceConnector:2.54mm square hole with protective coverSize:40*20mmPackage Included10 x 2 Key Press Film Switch