C.I. Pigment Red 106
Mercuric sulfide
CAS: 1344-48-5;13766-44-4
Molecular Formula: HgS
C.I. Pigment Red 106 - Names and Identifiers
C.I. Pigment Red 106 - Physico-chemical Properties
| Molecular Formula | HgS |
| Melting Point | 583.5 °C(lit.) |
| Physical and Chemical Properties | Character red hexagonal crystal or powder. relative density 8.10 solubility is difficult to dissolve in water, soluble in concentrated sodium sulfide solution, insoluble in alcohol and nitric acid. mercury sulfide has two crystalline states. Α-mercuric sulfide is a red hexagonal crystal or powder, called Red sulfidation (cinnabar), with relative density of 8.10, sublimation at 583.5 ℃, insoluble in water, soluble in concentrated sodium sulfide solution, insoluble in alcohol and nitric acid. Β-mercuric sulfide is a dark gray-black cubic crystal or amorphous powder, known as Black mercuric sulfide, with a relative density of 7.73, a melting point of 583.5 ℃, insoluble in water, alcohol and nitric acid, soluble in alkali metal and alkaline earth metal sulfide concentrated solution. Under the exclusion of air, the two different forms of mercury sulfide can be sublimated, and the red mercury sulfide product of hexagonal system can be obtained. Red mercury sulfide is a neutral compound, chemical stability, insoluble in general dilute acid, caustic soda, ethanol, water, slightly soluble in boiling concentrated hydrochloric acid, very soluble in aqua regia. Mercury sulfide with certain pigment properties is called Silver kyphus. According to different process conditions, dark red, bright red, bright red and other varieties can be made, which is mainly related to the size of pigment particles and the conditions for the transformation of mercury sulfide. The larger the particle diameter, the closer the hue is to dark red; The smaller the particle diameter, the closer the hue is to bright red, even with a yellow hue. Silver has a high hiding power and coloring power, but its poor light resistance, long-term in the sun, the hexagonal system slowly transformed into tetragonal and make its color darkened. |
| Use | Used for pigment, fire paint, preservative and traditional Chinese medicine preparation
Used as a colorant and also as a rubber pigment
For the pharmaceutical industry, the manufacture of pigments
bright red pigment, mainly used for interior coatings. Also the role of raw paint, mud, printing oil and painting, such as red pigment. Natural mercury sulfide is the main raw material for the manufacture of Mercury. Also used in color wax, plastic, rubber and medicine and preservatives. |
C.I. Pigment Red 106 - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment T - Toxic  |
| Risk Codes | R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36 - Irritating to the eyes R33 - Danger of cumulative effects R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
C.I. Pigment Red 106 - Upstream Downstream Industry
C.I. Pigment Red 106 - Nature
Open Data Verified Data
There are two variants. Open mercury sulfide red hexagonal crystal or powder; Relative density of 8. 10,583.5 ° C sublimation, insoluble in water, soluble in sodium sulfide concentrated solution, insoluble in alcohol and nitric acid. B a mercury sulfide is black cubic crystal or amorphous powder, relative density 7. 73, melting point 583.5 degrees C, insoluble in water, alcohol and nitric acid, soluble in alkali metal and alkaline earth metal sulfide concentrated solution. Extremely toxic!
Last Update：2025-06-10 22:55:16
C.I. Pigment Red 106 - Preparation Method
Open Data Verified Data
sulfur-Mercury method: sulfur is heated and melted first, and then Mercury is added in proportion to stir, and a little water is added to form black particles. It is then calcined at 600 ° C. For sublimation, and the sublimate is cooled to obtain a mercuric sulfide product.
Last Update：2022-01-01 11:04:01
C.I. Pigment Red 106 - Application
Open Data Verified Data
natural mercury sulfide is the main raw material for the manufacture of Mercury, and is also used as a red pigment in raw paint, mud, printing oil and painting. Also used in color wax, plastic, rubber and medicine and preservatives.
Last Update：2025-08-19 16:24:40
C.I. Pigment Red 106 - Safety
Open Data Verified Data
packed with a kraft paper bag lined with polyethylene plastic bag, each bag has a net weight of 100, and the first bag is a box. The package should be marked with "drug. It is an inorganic toxic substance. Code number: 83 013. Should be stored in a dry warehouse, protected from light. Should be moisture-proof and waterproof. Transport should be protected from rain and sun exposure. Mercury and mercury salts are highly toxic, mainly mercury ions. Highly soluble and dissociable mercury salts are therefore particularly dangerous. Personal protection and precautions: wear filter-type gas masks during handling. The workshop should be well ventilated, and the room temperature should not exceed 16~18. The equipment is required to be airtight.
Last Update：2025-06-10 22:55:16
C.I. Pigment Red 106 - Reference Information
| chemical properties | red hexagonal crystal or powder. Insoluble in water, soluble in concentrated sodium sulfide solution, insoluble in alcohol and nitric acid. |
| use | used as colorant for pigments, fire paints, preservatives and traditional Chinese medicine preparation, and also used as rubber pigments for pharmaceutical industry and pigment manufacturing |
Last Update：2024-04-09 21:04:16
Supplier List
Spot supply
Product Name: Mercury sulfide red Visit Supplier Webpage Request for quotationCAS: 1344-48-5
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Mercury sulfide Visit Supplier Webpage Request for quotationCAS: 1344-48-5
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Spot supply
Product Name: Mercury sulfide red Visit Supplier Webpage Request for quotationCAS: 1344-48-5
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Mercury sulfide Visit Supplier Webpage Request for quotationCAS: 1344-48-5
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
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Raw Materials for C.I. Pigment Red 106