Copper Chromite Black Pigment Organic Pigment Powder

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Tianjin
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TT OR LC
Min Order Qty:
500 kg
Supply Capability:
6000000 kg/month

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Product Description:

Black Specifications

Black Paint Pigment-Copper Chromite Black Spinel(P.Bk.28) 
High-temperature resistance 
Non-toxic pigment 
High light fastnes

Black Product Information:

Chemical Name:                Copper Chromite Black Spinel

Chemical Composition:     Cu/Cr/Fe Oxide

Color Index Name:             Pigment Black 28 / P. Blk.28

Color Index Number:         77428

CAS Number:                    68186-91-4

Physical Form:                  Black Powder

Crystal Pattern:                 Spinel Pattern 

 

Black Product Characteristics:

 

Pigment Black 28 is one kinds of environmental protection pigments, which is internationally recognized as non-toxic pigments.It has excellent heat resistance, weather resistance, lightfastness, chemical resistance, as well as good hiding power.

 

 

 

Black Main Technical Data:

 

Heat Resistance

≤1000°C

Light Resistance (Grade 1-8)

8

Weather Resistance (Grade 1-5)

5

Acid Resistance (Grade 1-5)

5

Alkali Resistance (Grade 1-5)

5

Oil Absorption

18-22g/100g

Density

4.8-5.6 g/cm3

PH

7-9

Mean Particle Size

≤1.5 µm

 

 

 

Black Packaging & Delivery

Packing Detail: Per 25 kgs pack in one cardboard drum and inner lined with secure plastic bag.

 

Delivery Detail: Within 15~20 days after 30% advanced.

 

 

 

Black Advantages:

 

High-temperature resistance, High light fastness resistance, Acid resistance,

 

Alkali resistance, Weather resistance, Easy to disperse, Non-migration, Non-bleeding.

 

 

 

Black Regulations:

 

Compliant to EU RoHS 2002/95/EC

 

Compliant to EN71Part 3:1994 (A1:2000/AC2002)

 

Compliant to US FDA 21 CFR 177.1520

 

Compliant to ASTM F963-08 (Clause 4.3.5)

 

Compliant to REACH

 


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Q:pigments??
Different pigments mostly absorb different range at different wavelength of light, but plant -as I know- mostly containing chlorophyll does not absorb green light so we see plants as green.
Q:PLEASE HELP! I need an oil based pigment powder?
Hi. okorder.com/... Those are all pure pigments, no hues or imitations. The prices may seem high, but even a half a pound of pigment is a huge amount. Prices I've seen on other sites are higher. I do not think it will work to crush up pastels, oil or otherwise, because they already have a binder and probably a lot of filler in them -- you will get a very weak color. Hope this helps.
Q:Which of these is NOT a major photosynthetic pigment in plants?
Chlorophylls are greenish pigments which contain a porphyrin ring. This is a stable ring-shaped molecule around which electrons are free to migrate. Because the electrons move freely, the ring has the potential to gain or lose electrons easily, and thus the potential to provide energized electrons to other molecules. This is the fundamental process by which chlorophyll captures the energy of sunlight. There are several kinds of chlorophyll, the most important being chlorophyll a. This is the molecule which makes photosynthesis possible, by passing its energized electrons on to molecules which will manufacture sugars. All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll a. A second kind of chlorophyll is chlorophyll b, which occurs only in green algae and in the plants. A third form of chlorophyll which is common is (not surprisingly) called chlorophyll c, and is found only in the photosynthetic members of the Chromista as well as the dinoflagellates. The differences between the chlorophylls of these major groups was one of the first clues that they were not as closely related as previously thought. Carotenoids are usually red, orange, or yellow pigments, and include the familiar compound carotene, which gives carrots their color. These compounds are composed of two small six-carbon rings connected by a chain of carbon atoms. As a result, they do not dissolve in water, and must be attached to membranes within the cell. Carotenoids cannot transfer sunlight energy directly to the photosynthetic pathway, but must pass their absorbed energy to chlorophyll. For this reason, they are called accessory pigments. One very visible accessory pigment is fucoxanthin the brown pigment which colors kelps and other brown algae as well as the diatoms. From this I would say the answer is c.
Q:Easy to prepare chemical pigments?
Some pigments easy to make in a school laboratory: 1) Calcium carbonate: Mix solutions of calcium chloride and sodium carbonate : CaCl2(aq) + Na2CO3(aq) → CaCO3(s) + 2NaCl(aq) filter off and dry the calcium carbonate 2) Barium carbonate Exactly as above , but start with barium chloride 3) Calcium sulphate Mix solutions of calcium chloride and sodium sulphate: CaCl2(aq) + Na2SO4(aq) → CaSO4(s) + 2NaCl 4) Barium sulphate Use barium chloride instead of calcium chloride . 5) Satin white is another interesting pigment: Mix solutions of aluminium sulphate and calcium hydroxide with strong stirring , You get a paste which is a mixture of aluminium hydroxide and calcium sulphate . There is no specific formula because what you get depends on how you mix. Do not try and dry this out to get a dry pigment - it does not work. There are 5 white pigments that you can easily make - but remember to wear proper protective clothing when working with all chemicals
Q:does photosythesis requier pigment moulecuels?
Pigments are needed, because they absorb the energy from the light. Different chlorophylls absorb different wavelengths. When pigment absorbs the photon, it releases an electron, which is used in photosynthesis as energy. Without pigment the light would just past through or reflect and no energy would be left to the cell to be turned into sugar.
Q:i bought mac pro pigments 4 the 1st time , now what do i do?
For MAC pigments you need a thick natural base underneath them to make them hold, and shine amazingly... I use paint pot base. Use a stiff eye brush and dab it in the pigment container. before applying it on your eye, shake off the access of it. make sure you have a base underneath though!
Q:difference betwwen dyes and pigments?
-A dye is a molecule or chemical which absorbs light more at some visible wavelengths than at others. Added to a clear medium, it gives clear colors. Transparent, not even milky or translucent. Added to an opaque medium such as concrete, the opacity remai
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:What are the accessory pigments and what are their functions?
Accessory pigments are light-absorbing compounds, found in photosynthetic organisms, that work in conjuction with chlorophyll a. They include other forms of this pigment, such as chlorophyll b in green algal and higher plant antennae, 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 chlorophylls. Some of these accessory pigments, particularly the carotenoids, also serve to absorb and dissipate excess light energy, or work as antioxidants.
Q:Physics: Compare and contrast pigment color with the color seen from a light.?
Pigments are chemicals that selectively absorb and reflect different spectra of light. When a surface is painted with a pigment, light hitting the surface is reflected, minus some wavelengths. This subtraction of wavelengths produces the appearance of different colors. Most paints are a blend of several chemical pigments, intended to produce a reflection of a given color. Mixing pigments is subtractive. Mixing light is additive. Let's take the primary pigments, red, blue and yellow. Red pigment is red because the chemical it is made of absorbs (subtracts) blue and yellow light that falls on it and reflects only red light to your eye. Similarly, blue pigment is blue because it absorbs red and yellow light and reflects only blue. So when you mix the three primary pigments together, you produce something that absorbs all of the light falling on it in equal amounts and reflects nothing to your eye. Thus, it appears black. In contrast, when you mix only red and blue light, there isn't any yellow in it, so the resulting light appears purple (the complement of yellow). Likewise, if you mix red and yellow light it appears orange (the complement of blue). If you mix all three colors of light together (in equal amounts), the resulting light appears white because it contains all of the colors of the spectrum. This explanation is sound, although greatly simplified. The two summaries above are not my own, nor do I claim them as mine.

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