ICSC 1119 - SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%)

« back to the search result list

SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%)	ICSC: 1119 (April 2017)
Sodium oxychloride Sodium chloride oxide

CAS #: 7681-52-9

UN #: 1791

EC Number: 231-668-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water.

STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Administration of oxygen may be needed. Refer immediately for medical attention.
Skin	Redness. Skin burns. Pain. Blisters.	Protective gloves. Protective clothing.	First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer immediately for medical attention.
Eyes	Redness. Pain. Severe burns.	Wear face shield or eye protection in combination with breathing protection.	Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.
Ingestion	Burning sensation. Abdominal pain. Vomiting. Shock or collapse. Unconsciousness.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. Collect leaking and spilled liquid in sealable non-metallic containers as far as possible. Then wash away with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents.	According to UN GHS Criteria May be corrosive to metals Causes severe skin burns and eye damage May cause respiratory irritation Very toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 8; UN Pack Group: II, III
STORAGE
Separated from combustible substances, reducing agents, acids and food and feedstuffs. See Chemical Dangers. Cool. Keep in the dark. Well closed. Store only in original container.
PACKAGING
Do not transport with food and feedstuffs.

SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%)

ICSC: 1119

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance CLEAR SLIGHTLY YELLOW SOLUTION WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on heating and on contact with acids. Decomposes under the influence of light. This produces toxic and corrosive gases including chlorine (see ICSC 0126). The substance is a strong oxidant. It reacts violently with combustible and reducing materials. This generates fire and explosion hazard. The solution in water is a strong base. It reacts violently with acid and is corrosive. Attacks copper and its compounds and light metals.	Formula: NaClO Molecular mass: 74.4 Melting point: -30 - -20°C Relative density (water = 1): 1.21 (14% aqueous solution) Density (at 20°C): 1.20 - 1.25 g/ml Vapour pressure, kPa at 20°C: 2 - 2.5 Solubility in water, g/l at 20°C: 293 (good)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
CLEAR SLIGHTLY YELLOW SOLUTION WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on heating and on contact with acids. Decomposes under the influence of light. This produces toxic and corrosive gases including chlorine (see ICSC 0126). The substance is a strong oxidant. It reacts violently with combustible and reducing materials. This generates fire and explosion hazard. The solution in water is a strong base. It reacts violently with acid and is corrosive. Attacks copper and its compounds and light metals.

Formula: NaClO
Molecular mass: 74.4
Melting point: -30 - -20°C
Relative density (water = 1): 1.21 (14% aqueous solution)
Density (at 20°C): 1.20 - 1.25 g/ml
Vapour pressure, kPa at 20°C: 2 - 2.5
Solubility in water, g/l at 20°C: 293 (good)

EXPOSURE & HEALTH EFFECTS
Routes of exposure Serious local effects by all routes of exposure. Effects of short-term exposure The substance is corrosive to the eyes, skin, respiratory tract and digestive tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. The effects may be delayed. Medical observation is indicated. See Notes.	Inhalation risk No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. Effects of long-term or repeated exposure Repeated or prolonged contact with skin may cause dermatitis.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
Serious local effects by all routes of exposure.

Effects of short-term exposure
The substance is corrosive to the eyes, skin, respiratory tract and digestive tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. The effects may be delayed. Medical observation is indicated. See Notes.

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment.

NOTES
Household bleaches usually contain about 5% sodium hypochlorite (about pH11, irritant), and more concentrated bleaches contain 10-15% sodium hypochlorite (about pH13, corrosive). The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Rinse contaminated clothing with plenty of water because of fire hazard. Also consult ICSC #0482 (Sodium hypochlorite, active chlorine <10%).

NOTES

Household bleaches usually contain about 5% sodium hypochlorite (about pH11, irritant), and more concentrated bleaches contain 10-15% sodium hypochlorite (about pH13, corrosive).
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Rinse contaminated clothing with plenty of water because of fire hazard.
Also consult ICSC #0482 (Sodium hypochlorite, active chlorine <10%).

ADDITIONAL INFORMATION

EC Classification
Symbol: C, N; R: 31-34-50; S: (1/2)-28-45-50-61; Note: B

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.