LED Fluorescent Powder with High Brightness Hot Sale
- Ref Price:
-
- Loading Port:
- Huangpu
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 88 kg
- Supply Capability:
- 100000 kg/month
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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:
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.
- Q: do all leaves extract contain the same pigments??why?
- Absolutely not. Leaf pigments, just to name a few, may include chlorophyll, carotenes, lutein, anthocyanins. Not only will pigment content vary between plant species, but pigment content will vary in individual plants seasonally.
- 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 are the pigments in clothes differ from plant pigments?
- Pigments are pigments. They are made of molecules that absorb some colors and reflect others from the visible spectrum of light, which gives everything color. Black pigments absorb everything and reflect nothing, so black is the absence of color and it is why dark clothing are warmer in winter. White pigments reflect everything and absorb nothing, so clothing that is white is cooler in summer. Most plants have more chlorophyll, a green pigment, in them than other pigments, so the plant is overwhelmingly reflecting green back to our eyes and absorbing the red and blue ends of the spectrum. In fall, when the chlorophyll breaks down, we can see the yellow, orange, and red pigments that are also in the leaf for a few weeks. In this way, all pigments are alike. However, perhaps what your teacher is looking for is that the green pigment chlorophyll in plants not only absorbs red and blue wavelengths of light, it also uses that energy to excite electrons from the molecules of chlorophyll and send them through an electron transport chain that enables light energy to be converted to chemical energy and store it in the C-H bonds of glucose, which is made during photosynthesis. Other pigments, whether they be in clothes or other objects such as cars or just about anything else do not do this. Only plant chlorophyll, or the green pigment in plants, converts light energy to chemical energy. That is the one huge difference. Otherwise, like all other pigments, chlorophyll absorbs some wavelengths of light and reflects others, in the case of chlorophyll, green wavelengths of light.
- Q: As in like makeup pigments??????
- pigments are severe colored, powder version of the eyshadows. AS FOR THE L'OREAL HIP.... defanatly in specific cases they may well be in comparison to MAC pigments. they're severe high quality. great, vivid, relaxing pigmention. in a sort of colorings. in case you prefer to attain the *POP* much extra, attempt making use of a watch shadow primer. they do wonders! you may purchase the dearer ones from Sephora or the drugstore one that is Loreal shrink. they make the colors extra vivid. does not crease. keeps them on longer. over all great stuff ;D desire i helped(:
- Q: why do plants need more than one pigment for light absorption?
- Pigments are molecules with an array of covalent bonds capable of absorbing a photon of light that has only a certain wavelength. The absorbed wavelength is only a fraction of the continuous range of wavelengths reaching the reaction center of a chloroplast. Each pigment species absorbs a different portion of the spectrum. So most photosynthesis works in combinations of pigments to absorb a across the visible spectrum and somewhat beyond. Some pigments (accessory photosynthesis carotenoid pigments) absorb useful wavelengths to pass the energy to chlorophyll A while the Xanthophyll Cycle pigments absorb potentially harmful high energy wavelengths for dissipation. Accessory pigments provide a range of spectra collection that allowed plants to adapt successfully to environments of differing light conditions. Pigments provide coloration to signal flower or fruit maturity to pollination partners or seed dispersal partners. Anthocyanins and carotenoids perform these communication functions. Phytochrome is a pigment that absorbs one wavelength only to toggle to another shape capable of absorbing at a different wavelength. Algae and plants both use this system to inform them of the time of year so they can synchronize with the best season in their habitat for reproduction efforts to succeed. Plants use phytochrome to regulate the photoperiod of flowering or seed germination.
- Q: How can you extract pure pigments from a sample of leaves in a form that you could test the absorbency of the various pigments??I don't know how to extract enough pigment in order to fill a cuvette and measure the absorbance, please help!! :D
- Separation of plant pigments using chromatography. Paper chromatography is a useful technique in the separation and identification of different plant pigments. In this technique, the mixture containing the pigments to be separated is first applied as a spot or a line to the paper about 1.5 cm from the bottom edge of the paper. The paper is then placed in a container with the tip of the paper touching the solvent. Solvent is absorbed by the chromatographic paper and moved up the paper by capillary action. As the solvent crosses the area containing plant pigment extract, the pigments dissolve in and move with the solvent. The solvent carries the dissolved pigments as it moves up the paper. The pigments are carried along at different rates because they are not equally soluble. Therefore, the less soluble pigments will move slower up the paper than the more soluble pigments. This is known as developing a chromatogram.
- Q: what is one reason why plants have accessory pigment molecules like chlorophyll b and carotenoids?
- They have different absorption maxima to chlorophyll a and so these accessory pigments make light absorption more efficient by absorbing some wavelengths not absorbed by chlorophyll a and thus provide a greater input of light into the reaction centres.
- Q: So i'm writing up a lab report and i'm just a little confused on why scarlet, rosy, cinnabar and vermillion mutants contain the same kinds and amounts of pigments found in wild-type according to paper chromatography. Since they're mutants shouldn't it be different? I don't understand how i'm going to explain that they are mutants when it appears that they have the same phenotype as wild-type. Thank you so much for your help!
- Man pigments determine the colour of the eye. If the composition of pigments is same in all the flies,how can the colour in which their eyes look differ?isn't this a contradiction?i suspect the accuracy of The chromatography test because even a very very slight change in the amount of pigment can significantly change the colour. The phenotype is always different in mutants due to different genotype. in genotype is taken for granted if a change in phenotype is present. Wait just got over into a nice point. Sometimes even if the pigment composition being same different colours m8 be produced due to different allotropes or iro of the same pigment might have different colours!though allotropes(not isomers) have same composition but differ in,their post translational changes r different.since post translational changes r indirectly influenced by genes.this completely explains this case.
- Q: hahahai have no clue what that means!
- It's a small plant that pigs love to eat. It's sort of like catnip, except that pigs love it (cats won't touch it). It is related to the catnip and mint family of plants.
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LED Fluorescent Powder with High Brightness Hot Sale
- Ref Price:
-
- Loading Port:
- Huangpu
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 88 kg
- Supply Capability:
- 100000 kg/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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