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NIOSH

SODIUM BORATE, DECAHYDRATE

ICSC: 0567

Disodium tetraborate decahydrate
Sodium tetraborate decahydrate
Sodium pyroborate decahydrate
Borax
B4O7Na2• 10H2O
Molecular mass: 381.4
ICSC # 0567 		CAS # 1303-96-4
RTECS # VZ2275000
September 04, 1997 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN!

•INHALATION Cough. Shortness of breath. Sore throat. Nose bleeds.
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration if indicated.
•SKIN Dry skin. Redness. Pain.
Protective gloves.
First rinse with plenty of water, then remove contaminated clothes and rinse again.
•EYES Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. Diarrhoea. Headache. Nausea. Vomiting. Weakness. Convulsions.
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P2 filter respirator for harmful particles).
Separated from acids.

ICSC: 0567 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

SODIUM BORATE, DECAHYDRATE

ICSC: 0567

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALS OR CRYSTALLINE POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance is a weak base.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: Borate compounds, inorganic 2 mg/m3 as TWA; 6 mg/m3 as STEL; A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK not established.
OSHA PEL†: none
NIOSH REL: TWA 5 mg/m3
NIOSH IDLH: N.D. See: IDLH INDEX


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the central nervous system, kidneys and liver, when ingested. The effects may be delayed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Animal tests show that this substance possibly causes toxic effects upon human reproduction.

PHYSICAL
PROPERTIES

Boiling point: 320°C
Melting point: 75°C
Relative density (water = 1): 1.7
Solubility in water, g/100 ml at 20°C: 5.1

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Jaikin, Pyrobor, Three Elephant, V-Bor are trade names.
Card has been partially updated in November 2008: see Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 0567 SODIUM BORATE, DECAHYDRATE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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