Sodium borate decahydrate
- Sodium tetraborate decahydrate
- Sodium pyroborate decahydrate
White, crystalline solid, odorless.
As preservative, either alone or with other antiseptics against wood fungus, artificial aging of wood, fireproofing fabrics & woods, soldering metals, manufacture of glazes & enamels, curing & preserving skins, tanning, pharmaceutic aid (alkalizing agent) vet: antiseptic, detergent, astringent for mucous membranes.
Registry Numbers and Inventories.
EC Index Number
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector; Human Data
Swiss Giftliste 1
B4Na2O7 . 10H2O
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1.6 (20 C)
Vapor density (air=1)
1.73 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Keep container tightly closed. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stable at room temperature in closed containers under normal storage and handling conditions.
Strong oxidizing agents, strong acids.
Irritating and toxic fumes and gases, oxides of boron.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
TLV: 5 ppm; mg/m3 (ACGIH 1996). NIOSH REL: TWA 5 mg/m3
Significant ingestions or dermal exposures can be associated with weak, rapid pulse, cyanosis and abnormally low blood pressure. The patient may present with reduced body temperature, elevated body temperature or normal body temperature. Headache, lethargy, restlessness, weakness, CNS irritation, and/or seizures may occur with long term or repeated exposures. There is insufficient information concerning the reproductive effects of borates in humans. Adverse testicular effects and infertility have been reported in animals. <br>There have been limited animal studies which suggest decreased ovulation, fetotoxicity and developmental defects may occur with very high exposure levels. Maternal toxicity was present in some studies.
May cause irritation of the digestive tract. Human fatalities have been reported from acute poisoning.
May cause respiratory tract irritation.
May cause skin irritation.
May cause eye irritation.
Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. Get medical aid.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
2840 19 90
IMO Pollution Category