| Identification | More | [Name]
Pigment Yellow 34 | [CAS]
1344-37-2 | [Synonyms]
CHROME YELLOW 34
Lead sulfochromate yellow
Blue15-4
KROLORYELLOW
LEADSULPHOCHROMATE
PRIMROSEYELLOW
PREDARKENEDMEDIUMCHROMEYELLOW
PREDARKENEDLEMONCHROMEYELLOW
CHROMELIGHTYELLOW
Bleisulfochromatgelb
c 103
c.i. 77600
c.p. chrome yellow light 1066
c.p. chrome yellow light 1074
c.p. chrome yellow medium 1085
c.p. chrome yellow medium 1298
chromastral green hm
chromastral green m
chromastral green y
Pigment yellow 34 (C.I. 77603 | [EINECS(EC#)]
215-693-7 | [Molecular Formula]
PbCrO4+PbSO4 | [MDL Number]
MFCD01940093 | [Molecular Weight]
576.07 | [MOL File]
1344-37-2.mol |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R61:May cause harm to the unborn child.
R33:Danger of cumulative effects.
R40:Limited evidence of a carcinogenic effect.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R62:Possible risk of impaired fertility. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [Hazardous Substances Data]
1344-37-2(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Chemical Properties]
Bright yellow monoclinic crystals. Density 6.12 g/cm??, melting point 844°C. Insoluble in water, oil, and acetic acid, but soluble in strong alkalis and inorganic acids. It turns black in contact with hydrogen sulfide and orange-red in contact with alkali. It has strong tinting and hiding power. It cannot be used with lithopone or ultramarine. It is toxic. Its color shade varies depending on the raw material ratio and preparation conditions, and includes five types: orange chrome yellow, dark chrome yellow, medium chrome yellow, light chrome yellow, and lemon yellow. Lemon chrome yellow [3PbCrO4·2PbSO4+Al(OH)3+AlPO4]. It contains at least 50% lead chromate and has a vibrant greenish hue. It produces a good gloss finish in paints. It can be mixed with blue pigments to produce a vibrant emerald green, equivalent to 10G. It has a lightfastness rating of 4-5. It has a heat resistance rating of 140°C. Its water and oil permeability are rated 1. Acid and alkali resistance is Class 3.
Light Chrome Yellow (5PbCrO4·2PSO4+Al(OH)3+AlPO4). Containing at least 60% lead chromate, it offers bright color, strong tinting strength, and excellent gloss in paints. It can be mixed with blue pigment to create a light green. The lead chromate content is higher than that of lemon chrome yellow. Its color is equivalent to 4G. Its lightfastness reaches Class 5. Its heat resistance is 140°C. Its water and oil permeability are Class 1. Its acid and alkali resistance are Class 3.
Medium Chrome Yellow (PbCrO4+PbSO4). It has a pure color and good gloss in paints. It can be mixed with blue pigments to produce a medium green. It has the highest lead chromate content, exceeding 90%. Its color is equivalent to Grade G. Its lightfastness reaches Grades 4-5. Its heat resistance is 140°C. Its water and oil permeability are Grade 1. Its acid and alkali resistance are Grade 3.
Dark Chrome Yellow (PbCrO4+PbCrO4·PbO). It contains 85% lead chromate, has a reddish hue, and strong tinting strength. Its color is equivalent to Grade GR. Its lightfastness reaches Grade 5. Its heat resistance is 140°C. Its water and oil permeability are Grade 3.
Orange Chrome Yellow (PbCrO4·PbO). This is a basic lead chromate with a PbCrO4 content of at least 55%, resulting in an orange-yellow color. It has good lightfastness, reaching Grades 5-5. Its heat resistance is 150°C. Its water and oil permeability are Grade 1. Its acid and alkali resistance are Grade 3. | [Uses]
Pigment Yellow 34 is a pigment used in camouflage oriented combinations as well as car paints and textiles. | [Definition]
ChEBI: Lead chromate is a chromium coordination entity comprising chromate and lead(2+) ions in a 1:1 ratio It has a role as a carcinogenic agent, a neurotoxin and a nephrotoxin. It is a lead coordination entity and a chromium coordination entity. It contains a lead(2+) and a chromate(2-). | [Flammability and Explosibility]
Nonflammable | [Properties and Applications]
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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DEEP YELLOW POWDER
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SHADE
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REDDISH
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HEAT RESISTANCE
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140 °C min
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LIGHT FASTNESS
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7
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ACID RESISTANCE
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5
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ALKALI RESISTANCE
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5
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FASTNESS TO BLEEDING
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5
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OIL ABSORPTION
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20-25%
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SPECIFIC GRAVITY
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0.6
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DENSITY
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5.60 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
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WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
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