U+33D9 "㏙" Square Ppm Unicode Character
Unicode Version 17.0
㏙
U+33D9 "㏙" Square Ppm is an ideographic symbol that represents the abbreviation for "parts per million," a dimensionless unit of measurement often used in chemistry, environmental science, and engineering to denote very dilute concentrations of one substance within another. Encoded in the CJK Compatibility block of Unicode, this character is designed for compatibility with East Asian text encodings where such shorthand notations appear in contexts like chemical formulas or labeling. It forms its composition by enclosing the letters "ppm" within a square layout, mimicking the typical appearance of a single East Asian character for streamlined typography in vertical or horizontal writing systems.
General Properties
| Code Point | U+33D9 |
| Version Added | 1.1 |
| Name | Square Ppm |
| Unicode 1.0 Name | Squared Ppm |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "P" U+0050 Latin Capital Letter P "P" U+0050 Latin Capital Letter P "M" U+004D Latin Capital Letter M |
Encodings
| HTML Decimal Encoding | ㏙ |
| HTML Hex Encoding | ㏙ |
| UTF-8 Encoding | 0xE3 0x8F 0x99 |
| UTF-16 Encoding | 0x33D9 |
| UTF-32 Encoding | 0x000033D9 |
| C/C++/Java Escape | \u33d9 |