GH Chemicals CR-4 USP 2

GH Chemicals CR-4 USP 2 is a very fine, amorphous, white or yellowish powder free from gritty particles.

Chemical Name: Zinc Oxide

CAS Number: 1314-13-2

Grade: Food Grade, Pharma Grade

Labeling Claims: Halal, Kosher

Synonyms: Hubbuck's White, Zinc gelatin, Zinc monoxide, Zinc white, ZnO

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Chemical Name
Base Chemicals Functions
CAS No.
1314-13-2
EC No.
215-222-5
Technologies
Product Families
Identification
  • A- When strongly heated, it assumes a yellow color that disappears on cooling
  • B-In the presence of sodium acetate, solutions of zinc salts yield a white precipitate with hydrogen sulfide. This precipitate is insoluble in acetic acid, but is dissolved by 3 N hydrochloric acid.
Iron and heavy metals
  • White precipitates are formed when potassium ferrocyanide TS is added to the first portion and when sodium sulfide TS is added to the second portion.

Features & Benefits

Labeling Claims

Applications & Uses

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Specific Surface Area40Ib./ft3-
Through 325 Mesh99.98 - 100--
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity4.5m²/g-
Loss on ignition at 500°C0 - 10%-
Lead (A-A analysis)0 - 10ppm-
Assay ZnO99.0 - 100.5%-
Cadmium Content0 - 10ppm-
Iron (A-A analysis)0 - 10ppm-
Copper Content0 - 10ppm-
Heat Loss at 110°C0 - 0.07%-
Arsenic0 - 5.0ppm-

Regulatory & Compliance

Technical Details & Test Data

Alkalinity
  • if a red color is produced, not more than 0.30 mL of 0.10 N hydrochloric acid is required to discharge it.
Carbonate and color solution
  • no effervescence occurs and the resulting solution is clear and colorless
Lead
  • The addition of 5 drops of potassium chromate TS produces no turbidity or precipitate