Cobalt Violet Ultra Dark Pigment
Rublev Colours Cobalt Violet Ultra-Dark pigment is an ultra-dark blue-violet. It is nonstaining with low tinting strength and is fast drying in oils where the cobalt content acts as a drier. Learn more about Cobalt Violet Ultra-Dark.
Rublev Colours Cobalt Violet Ultra-Dark pigment is an ultra-dark blue-violet. It is nonstaining with low tinting strength and is fast drying in oils where the cobalt content acts as a drier.
| Pigment Nomenclature | |||
| Common Name | Mineral Name | Chemical Name | Source/Origin |
| Cobalt violet | None | Cobaltous phosphate | United Kingdom |
| Common Names: | English: cobalt violet French: violet de cobalt German: Kobaltviolett Italian: viola cobalto Russian: кобальтовый фиолетовый Spanish: violetto cobalto | ||
| Synonyms: | Caprice Violet C.I. Pigment Violet 14 Cobalt Magenta Cobalt Phosphate Cobalt Pink Cobalt Raspberry Cobalt Red Cobalt Red Violet Cobalt Rose Cobalt Violet Cobalt Violet Brilliant, dark Cobalt Violet Dark Cobalt Violet Deep Cobalt Violet Light Cobalt Violet Pale Cobalt Violet Phosphate Cobalt Violet Pink Shade Cobalt Violet Pink Shade Light Cobalt Violet Medium Cobalt Violet Rose Cobalto Violeta Kobalt Violet Light True Cobalt Violet Pigment Violet 14 True Cobalt Violet Light Violet de Cobalt Violetto Cobalto | ||
| Pigment Information | |
| Color: | Violet |
| Colour Index: | Pigment Violet 14 (77360) |
| Chemical Name: | Cobaltous Phosphate or Cobalt(II)-Phosphate |
| Chemical Formula: | Co3(PO4)2 |
| CAS No.; | 13455-36-2 |
| ASTM Lightfastness Rating | |
| Acrylic: | Not Listed |
| Oil: | I |
| Watercolor: | I |
| Properties | |
| Density: | 3.81 g/cm3 |
| Oil Absorption: | 34–37 grams oil / 100 grams pigment |
| Refractive Index: | nD=1.7 |
History and Origin
The remarkable range of pigments that could be produced with cobalt included cobalt violet, is known since 1859. Salvetat first described the preparation of cobalt violet in Comptes Rendus des Seances de l'Academie des Sciences XLVIII in an article titled, "Matieres minerales colorantes vertes et violettes." The dark variety is anhydrous cobalt phosphate which was made by mixing soluble cobalt salt with disodium phosphate. It was washed and then heated at a high temperature.
It is chemically stable, but its rather high cost and low tinting power prevented its wider use in paintings. Not unlike its older sister cobalt green, its drawbacks included high cost and weak coloring power, both of which limited its use among painters. It was quickly replaced by the cleaner, stronger pigment manganese violet.
Source
Cobalt Violet Ultra-Dark is a synthetic inorganic pigment composed of calcined cobalt (II) oxide and phosphorus (V) oxide, forming an inter-diffused, homogeneous crystalline phosphate.
Permanence and Compatibility
Cobalt violet is considered to be very permanent but the light variety could change in oil due to the yellowing of linseed oil. It is compatible with all painting media. Their transparency, weak tinting strength, and high cost limited their use but their fastness to light made them more desirable than the older organic dye violets.
Oil Absorption and Grinding
Cobalt violet absorbs a moderate amount of oil (34 to 37 grams per 100 grams of pigment), which slows the drying of oil paint and hence is a moderate drying oil color. It disperses well in both oil- and water-based paints and is easy to mull by hand to a smooth paste.
Toxicity
Cobalt violet is not considered toxic, but care should be used in handling the dry powder pigment to avoid inhaling respirable dust particles.
| SKU | 459-15 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Rublev Colours |
| Processing Time | Usually ships the next business day. |
| Color | Violet |
| Pigment Type | Inorganic, Synthetic |
Order Processing
If the Processing Time for items in your order is "Usually ships within 24-48 hours", your order will usually be processed within 48 hours of receipt Monday through Friday. Orders received during weekends and holidays will be processed on the next business (working) day. Orders with longer processing times will be shipped when all items become available.
Shipping Rates
Please add your desired items and the delivery address to your basket to determine the exact shipping costs and options. The table below provides shipping rates for different weights to the countries we ship to.
Carriers
We use the following carriers to deliver orders:
 |  |  |
Below is an approximate guide to shipping costs for locations in Europe. Rates may change without notice.
| COUNTRY | ALPHA-2 | RATES PER PARCELS | CARRIER | |
| 0–10 kg | >10 kg–30 kg | |||
| Austria | AT | 11,50 € | 11,50 € | DPD |
| Belgium | BE | 10,95 € | 10,95 € | DPD |
| Bulgaria | BG | 20,25 € | 30,25 € | FedEx |
| Bosnia and Herzegovina | BA | 49,25 € | 49,25 € | DPD |
| Cyprus | CY | 21,80 € | 29,30 € | FedEx |
| Switzerland | CH | 25,85 € | 42,98 € | FedEx |
| Czech Republic | CZ | 12,00 € | 12,00 € | DPD |
| Germany | DE | 5,50 € | 5,50 € | DPD |
| Denmark | DK | 12,00 € | 12,00 € | DPD |
| Spain | ES | 17,48 € | 28,50 € | FedEx |
| Estonia | EE | 21,70 € | 21,70 € | DPD |
| Finland | FI | 17,48 € | 28,50 € | FedEx |
| France | FR | 14,60 € | 14,60 € | DPD |
| United Kingdom | GB | – € | – € | – |
| Greece | GR | 17,48 € | 28,50 € | FedEx |
| Croatia | HR | 29,25 € | 29,25 € | DPD |
| Hungary | HU | 15,90 € | 15,90 € | DPD |
| Ireland | IE | 17,48 € | 28,50 € | FedEx |
| Iceland | IS | 30,70 € | 62,40 € | DHL |
| Italy | IT | 15,90 € | 15,90 € | DPD |
| Liechtenstein | LI | 25,85 € | 43,00 € | FedEx |
| Lithuania | LT | 21,70 € | 21,70 € | DPD |
| Luxembourg | LU | 10,95 € | 10,95 € | DPD |
| Latvia | LV | 21,70 € | 21,70 € | DPD |
| Malta | MT | 21,80 € | 30,25 € | FedEx |
| Monaco | MC | 15,95 € | 24,30 € | FedEx |
| Netherlands | NL | 10,95 € | 10,95 € | DPD |
| Norway | NO | 25,85 € | 43,00 € | FedEx |
| Poland | PL | 14,90 € | 14,90 € | DPD |
| Portugal | PT | 15,50 € | 15,50 € | DPD |
| Romania | RO | 21,80 € | 30,25 € | FedEx |
| Serbia | RS | 49,25 € | 49,25 € | DPD |
| Slovakia | SK | 15,90 € | 15,90 € | DPD |
| Slovenia | SI | 15,90 € | 15,90 € | DPD |
| Sweden | SE | 15,90 € | 15,90 € | DPD |
| Turkey | TR | 27,30 € | 46,20 € | FedEx |
Note: Countries in RED type are not members of the European Union.
Postal Service
Shipping (EU and non-EU countries):
Up to 500 grams Tracked: 6,85 €
Up to 1000 grams Tracked: 10,45 €
Up to 2000 grams Tracked: 20,50 €
Tracking
For tracking details, please log in to your Natural Pigments account.
We track all orders where a tracked delivery service has been selected.
We will update your order with the tracking information if the shipping carrier provides a tracking number. You can locate the tracking number for your order in the shipping confirmation email you receive when your order is shipped. (Look for the email with the subject line "Natural Pigments: Shipment # xxxxxxxxx for Order # xxxxxxxxx.") You can also find the tracking number by signing into your account and visiting My Account Dashboard under Recent Orders.
VAT for Orders within the European Union
VAT is not included in prices unless specified on the website as VAT INCLUSIVE. VAT is calculated for Germany at 19% on both order subtotal and shipping cost and is added to the order grand total.
VAT, Duties, and Tariffs for Orders Outside of the European Union
VAT is not included in prices and totals unless specified on the website as VAT INCLUSIVE. Duties, tariffs, and customs broker fees are not included in the prices and totals on the website. These charges are in addition to what you will pay when ordering. These charges originate in the delivery country, so please contact your local customs for more information.
Shipping Rates
The rate charged for the shipping of your order is based on the weight of your products and your location. Before the final checkout page, you will be shown what the shipping cost will be, and you will have a chance to abandon your order if you decide not to place it.
Shipping Damage
For shipping damage, customers should file a claim with the carrier immediately. Any discrepancy, including wrong or missing items, should be reported to Natural Pigments within twenty-four (24) hours of receipt.
Back Orders
We do not accept backorders for out-of-stock items. If you order an out-of-stock item, we will email you when we expect that product to be available. You will be among the first to receive the item when it becomes available. Natural Pigments will not charge your credit card for out-of-stock items.
