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Litharge

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CAS №1317-36-8 ГОСТGOST 5539-73
ФормулаPbO СортGrade G-1
СинонимыLead oxide, carbon monoxide, lead, technical lead oxide Фасовка25 kg
Цена

Obtaining

The raw material for litharge is lead.

Application

Litharge is a technical lead oxide.

Litharge is produced in the following classification targeting different usage:

  • Г-1 — for the orange lead crown, lead crystal, crystal glass and electroceramics;
  • Г-2 — for the yellow lead and lead-molybdate crown, dryers, stabilizers, PVC reinforcement and rubber products;
  • Г-3 — for batteries and electric carbonic products;
  • Г-4 — for rubber;
  • Г-6 — for diode glass, lead crystal and crystal glass.

Appearance of the product

Brand Г-1-Г-4 — yellow powder of different tone, Г-6 — granules of reddish-brown color.

Safety requirements

Litharge by impact on the body is a substance of Class 1 dangerous.

Guaranteed shelf life

Г-1, Г-2, Г-3 and Г-4 — 6 months

Г-6 — 12 months from a date of manufacturing.

 

Item Norm
Г-1 Г-2 Г-3 Г-4 Г-6
First Second
Mass fraction of lead oxide (PbO), %, not less than 99.8 98.7 98.5 98.5 96.5 99.8
Mass fraction of lead (Pb), %, not more than 0.01 0.50 1.00 1.00 1.80 0.01
Mass fraction of lead dioxide (PbO2), %, not more than 0.02 0.2 0.3 0.3
Mass fraction of iron (Fe), %, not more than 0.001 0.005 0.001 0.005 0.001
Mass fraction of substances insoluble in HNO3 + H2O2. %, not more than 0.01 0.04 0.01 0.08 0.40 0.01
Mass fraction of water and volatile substances, %, not more than 0.1 0.3 0.02 0.3 0.3 0.1
Residue on sieve, % , not more than
0063
016
014

0.1
Absent

0.5
Absent

0.2
Absent

0.5
0.02

1.5

0.01



Bulk density, g/cm3 1.7–2.2 1.7–2.2 2.5–4.0
Adsorption of sulfuric acid, g/100g singlet 4.0–7.0

Note

Standards for Г-6, grains' metrics:

  • Mass fraction of more than 2.5 mm is absent;
  • Mass fraction of less than 0.1 mm, %, not more than — 5;
  • Strength of grains by abrasion,%, not less than — 95;
  • Strength of granules at the impact, %, not less than — 95.

 

Class of danger 1
Basic properties and hazards
 Basic properties Yellow powder of various shades or granules of reddish-brown color.
The risk to humans Toxic product, causing acute and chronic lead poisoning.
Individual protection means Protective clothing, hands and feet must be protected, a dust mask SB-1.