Copper Chromite Black Pigment Organic Pigment Powder

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Loading Port:
Tianjin
Payment Terms:
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:what are the three major photosythetic pigments?
three major pigments are 1.chlorophyll a 2.chlorophyll b 3.carotenoids chlorophyll a is the major pigment,chlorophyll b n carotenoid are the accessory pigments which help in absorption of the incident light of different wavelengths. another pigment xanthopyll-fucoxanthin is also present in some plants
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:can pigment ink be used to tattoo?
Pigment ink? Tattoo ink is pigment ink. Printer ink is pigment ink. Crayola markers are pigment ink. It all comes down to what it's manufactured for and whom is doing the manufacturing. Reputable shops use certain brands of tattoo ink for a reason. Using something not made for the human body at all makes for an ugly tattoo and can cause infections or other problems seeing as nothing in it's manufacturing process is sanitary or compatible with use in skin.
Q:What is color and how are pigments made?
Color is made from a variety of methods.
Q:What exactly are eyeshadow pigments?
Pigment okorder.com/....
Q:Can MAC pigments be used as regular eyeshadows? They seem to all be glittery...?
Of course they can ! I love mac pigments. Yes, fallout is involved..but what i do is i use my mixing medium with them so that they go on wet and no fallout. If you don't have mixing medium you can mix them with eyedrops. What i do is i put a drop in the lid and pick up some pigment and mix it till i get the perfect consistancy. You can also learn how to press them, so that they can become pressed eyeshadows instead of loose. But if you just want to use them loose, make sure you get a good flat shader brush...make sure you pat the pigment on your lids insted of in a swiping motion, this also prevents less fall out. Get some loose transparent powder as well set that under your eyes, and swipe it off when done..this makes the fallout swipe away without smearing on your face.. Hope that helps ! If you want you can do all of this, but you don't have to...just random tips to prevent that annoying fallout
Q:advantages of having accessory pigments?
Each photon has a particular wavelength, determined by the photon's energy. A pigment such as chlorophyll can only absorb photons in particular wavelength bands, matching the energies of available electron transitions to excited states. For chlorophyll, these bands are in blue and red -- the green color of most leaves is due to the waste light that is not absorbed by chlorophyll, while red and blue photons can be absorbed and used to power photosynthesis. An accessory pigment can absorb a photon that has a wavelength (color) outside of the bands that chlorophyll is able to absorb and can pass some of the absorbed energy on to chlorophyll, getting rid of the excess energy in another form, such as heat. A pigment might be tuned to absorb a photon of yellow light; the absorbed energy, stored in the excited state of an electron, is called an exciton (the photon becomes an exciton, so energy is not created or destroyed). The exciton can be passed to a chlorophyll, but only with the same energy as the red photon that the chlorophyll could normally absorb directly. The excess energy, the difference in energy between the yellow and red photon, must be dissipated in another form. This process allows a plant to harvest photons that would otherwise be unavailable to its photosystems. Consider how this would be an advantage to a plant living on a shaded forest floor, or to a planktonic cyanobacteria floating in the water below other photosynthetic algae, in regions where photosynthetically useful photons are scarce.
Q:What is a pigment and their function in photosynthesis?
Chlorophyll. These pigments convert sunlight into glucose and some more stuff . It also gives leaves their green colour
Q:What is the importance of the accessory pigments?
Q:do all leaves extract contain the same pigments??why?
Plants okorder.com/... Plants have classes of pigments that act as adjuncts to the chloroplast's chlorophyll, in several ways. Some are accessory pigments that broaden the range of absorbed light. These pigments are found in the light gathering arrays in chloroplasts. They also alter the color of the leaf depending on what specific pigments it has to gather light energy and that determines what is reflected (green is the basic reflected spectra but is might be yellowish or bluish green). The major accessory class of pigments, the carotenoids, collect light in the red to yellow wavelengths chlorophyll a can’t, then the carotenoids transfer the energy to chlorophyll a to process. Among the carotenoids are the xanthophylls that provide UV protection for the light gathering centers of the chloroplast. Plants adapt to situations and some just have fewer chloroplasts so have less chlorophyll and absorb less of the light. In low light situations they need fewer so variegated plants are possible. This reduced chlorophyll level allows small amounts of other pigments like the yellow pigment xanthophyll to show up.

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