Red Lead (Pb304 or 2PbO, PbO2) is soft orange and red colored powder. It is a useful ingredient for the storage battery, glass & ceramic industry and it occupies an important place in the Paint Industry for its rust inhibiting character. It is virtually insoluble in water and alcohol. However, it is soluble in the hydrochloric acid present in the stomach, therefore it is toxic when ingested. It dissolves in hydrochloric acid, glacial acetic acid, and a diluted mixture of nitric acid and hydrogen peroxide.
RED LEAD
Red Lead is used to a certain extent in the ceramics and glass, paints and pigments and explosives industries.Our Red Lead Non-Setting is a highly superior quality product and is the market leader.
S S International also produces Red Lead Ordinary conforming to IS :57-1989 Type A and B. This formula corresponds to a PbO2 content significantly lower than 34.0% dependent upon the particular application in which they are to be used.
Red Lead Typical Specifications:
| ATTRIBUTE | RED LEAD | ||
| JOINTING GRADE | SETTING GRADE | NON-SETTING GRADE | |
| Colour | Orange Red to Brick Red | Orange Red to Brick Red | Brilliant Orange Red to Brick Red |
| Crystal Structure | Spinal Structure | Spinal Structure | Spinal Structure |
| Thermal Stability | 500 ° C | 500 ° C | 500 ° C |
| Specific Gravity | 9.1 | 9.1 | 9.1 |
| Retention on 240 mesh IS Sieve(63 micron) (max %) | 0.25 | 0.15 | 0.15 |
| Apparent Density (Scott) gm/cc | 1.6 to 1.8 | 1.3 to 1.6 | 1.2 to 1.3 |
| Matter soluble in water (in %) | 0.3 | 0.3 | 0.3 |
| Water Absorption mg/gm | 90 to 100 | 90 to 110 | 100 to 110 |
| Acid Absorption mg/gm | 160 to 170 | 150 to 160 | 130 to 150 |
| Volatile Matter at 105°C (in %) | 0.2 | 0.2 | 0.2 |
| Oil Absorption % | 6-7 | 6-7 | 6-7 |
| Free Lead (% Max) | Traces | Traces | Traces |
| PbO2 (in %) | 15.1 to 25.1 | 25.2 to 33.2 | 33.3 and above |
| Pb3O4 | 43.0 to 72.0 | 72.1 to 95.0 | 95.1 and above |
| Total Lead Oxide | 99.5 | 99.5 | 99.5 |
| Uses | Boiler & Water Pipe Line | Lead Acid Batteries Heat proof glasses Ceramics Optical glasses Fluorescent tubes | Surface coating Storage batteries Ceramics Rubber & plastics |
| Moisture Content (% Max) | 0.05 | 0.05 | 0.05 |
| Purity (% Min) | 99.97 | 99.97 | 99.97 |