LED Fluorescent Powder with High Brightness Hot Sale

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88 kg
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100000 kg/month

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Product Description:

Description of LED Fluorescent:

Extensive usage: it applies to various LED encapsulation from cool white to warm white. The rendering index can be up to 98 with red powder.


Festures of LED Fluorescent:

Appearance: Red crystal powder.
Chemical Component: Oxynitride chemical compound
Chemical Stability: No decomposability in water, strong stability from -50°C to 300°C in the air.
Safety Capability:Meet the RoHS standard, contains no radiation, no toxicity, no hazard to human, and no pollution to the environment.


Specifications of LED Fluorescent:

Appearance: Yellow crystalline powder

Chemical composition: Rare earth aluminate

Physical stability: waterproof and heatproof. No any changes under -50°C to 300°C in the air.

Chemical stability: under 200°C, brightness >90%; within 1000 hours after encapsulation, brightness decay

Safety: Conform to the RoHS {EU (Restriction of Hazardous Substances)} and all security standards. Non-poisonous, non- radioactivity and do no harm to human and environment.


Images of LED Fluorescent:

LED Fluorescent Powder with High Brightness Hot Sale

 

FAQ:

1.When can i get the price quotation?

We can send you the quotation within 24hours after your inquiry, including the shipping cost if you need.

2.What about payment term?

30% T/T deposit, balance against B/L copy.

Full T/T payment if quantity less than MOQ.

3. What’s your after-sales service?

One-year warranty, and 1% common accessories.

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Q:what are the different types of pigments other than chlorophyll?
If you want to physically separate the different pigments, you can use a method called paper chromatography. The chlorophyll is dissolved in a certain solute and is allowed to move through a piece of paper. The different pigments will move at different speeds and they will be separated. But if you simply want to identify the different pigments, you can use another method called spectrophotometry. Different chlorophyll pigments absorb photons of different wavelength. In diethylether, chlorophyll a has approximate absorbance maxima of 430 nm and 662 nm, while chlorophyll b has approximate maxima of 453 nm and 642 nm. So that's how you distinguish between the two.
Q:how do you make pigmented ink?
Isn't all ink pigmented? A quick search for make your own ink turned up many recipes. Here is one: Basic Permanent Black Ink: 1 egg yolk 1 tsp gum arabic 1/2 cup honey 1/2 tsp lamp black (buy in a tube or make by holding a plate over a lit candle) Mix egg yolk, gum arabic and honey in a small bowl.
Q:Why is it important for a plant to have more pigments than just chlorophyll?
If the plant only has chlorophyll, it is only able to absorb and use the wavelengths of light that correspond to chlorophyll, which is really limiting. Having other pigments allows it to use more wavelengths of light, which is more efficient.
Q:thinking about the main role of pigments in photosynthesis...?
Green pigments absorb light in the red and blue parts of the spectrum and reflect the green back to our eyes. The major functional difference between chlorophyll and say jade green is that only the chlorophyll in living systems can transfer the absorbed light energy and the excited electron to another molecule, thus trapping it. In biology, pigment is any material resulting in color in plant or animal cells which is the result of selective absorption. Some biological material has so-called structural color, which is the result of selective reflection or iridescence, usually done with multilayer structures. Unlike structural color, pigment color is the same for all viewing angles. Nearly all types of cells, such as skin, eyes, fur and hair contain pigment. Butterfly wings typically contain structural color, although many of them contain pigment as well. Creatures that have deficient pigmentation are called albinos. In the coloring of paint, ink, plastic, fabric and other material, a pigment is a dry colorant, usually an insoluble powder. There are both natural and synthetic pigments, both organic and inorganic ones. Pigments work by selectively absorbing some parts of the visible spectrum (see light) whilst reflecting others. A distinction is usually made between a pigment, which is insoluble, and a dye, which is either a liquid, or is soluble. There is no well-defined dividing line between pigments and dyes, however, and some coloring agents are used as both pigments and dyes. In some cases, a pigment will be made by precipitating a soluble dye with a metallic salt. The resulting pigment is called a lake.
Q:Recommended hair dyes for pre-pigmenting?
if you have blonde hair this will naturally get bleached by the actual sun in the summer. There was this guy in my class who also had golden blonde hair that has been a medium brown near the base. When he came back to college after summer vacation, it was practically platinum blonde!
Q:How do scientists use a spectrophotometer to detemine the absortion spectrum of a pigment?
A pigment molecule absorbs at specific wavelength(s), meaning that when light of a specific wavelength is incident to the molecule only certain wavelengths are absorbed while others are transmitted. The spectrophotometer emits monochromatic light (light of only one wavelength) which passes through the pigment molecule and a detector determines the amount of light that is either absorbed or transmitted by the sample. This is done at wavelengths from the UV (180-330 nm) to the visible (330-700 nm) and the light that is either transmitted or absorbed is detected by the spectrophotometer and is able to be graphed with absorbance representing the y-axis and wavelength representing the x-axis. The resultant graph will depict the absorption spectrum of that particular pigment molecule. Hope that helps.
Q:what is the definition of color pigments?
Pigments are substances which are used familiarly to create pictures and printings. Pigments give an object a color when in a field of incident white light. Pigments themselves absorb a set of incident colors of light and reflect all others. When multiple pigments are mixed, their ability to absorb colors is added, such that their ability to reflect colors is subtracted.
Q:what is a pigment? Please describe it, and tell me the uses.?
Pigments are a natural color in organisms. To understand pigments, you must understand the reflections of light. Pigments allows for organisms to have color, like the blue or brown in the eyes. For example, leaves in plants are color green because their pigments absorb all the colors because of photosynthesis except green and reflects off the color. Their plants are usually not green because they don't need to absorb light as much as the leaves does. Pigments depend on the type of light it absorbs. You are green in a dark room with green light right?
Q:How many pigments does grass reflect?
Pigments are the colors that make grass look green. They are the pigments that do photosynthesis. Grass looks green because it reflects green light. It reflects the wavelengths of light that have the frequency of green light. Grass has other pigments that we do not see through the chlorophyll, but it is the light that is reflected.
Q:what are accessory pigments?
Accessory pigments are light-absorbing compounds, found in photosynthetic organisms, that work in conjunction with chlorophyll a. They include other forms of this pigment, such as chlorophyll b in green algal and higher plant , while other algae may contain chlorophyll c or d. In addition, there are many non-chlorophyll accessory pigments, such as carotenoids or phycobiliproteins which also absorb light and transfer that light energy to photosystem chlorophyll. Some of these accessory pigments, particularly the carotenoids, also serve to absorb and dissipate excess light energy, or work as antioxidants. The different chlorophyll and non-chlorophyll pigments associated with the photosystems all have different absorption spectra, either because the spectra of the different chlorophyll pigments are modified by their local protein environment, or because the accessory pigments have intrinsic structural differences. The result is that, in vivo a composite absorption spectrum of all these pigments is broadened and flattened such that a wider range of visible and infrared radiation is absorbed by plants and algae. Most photosynthetic organisms do not absorb green light well, thus most remaining light under leaf canopies in forests or under water with abundant plankton is green, a spectral effect called the green window. Organisms such as some cyanobacteria and red algae contain accessory phycobiliproteins that absorb green light reaching these habitats. For more kindly click on the links below --- en.wikipedia.org/wiki/Accessory_p... en.wikipedia.org/wiki/Photosynthe...

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