E.J.Payne Ltd
Material Safety Data Sheet
1. Identification of the substance/preparation and of the company/undertaking.
Identification of the product
Catalogue No: HTH-
ID No.:
Product name: HTH Chlorine Granules / Tablets
Synonyms:
Calcium Hypochlorite
Manufacturer/supplier identification
Company: E.J.PAYNE LTD. 1,BELGRAVE ROAD, LONGTON, STOKE-ON-TRENT, ST3 4PR
Emergency telephone No: 01782 312534
2. Composition/information on ingredients
Mixture contains:
Chemical
% Conc
Symbol
Calcium hypochlorite
O,C
Sodium chloride
Calcium chlorate
Calcium chloride
Calcium hydroxide
Calcium carbonate
Water
Risk phrases
R8, R31, R34
S1/2, S26, S43/45
CAS
7778-54-3
7647-14-5
10137-74-3
10043-52-4
1305-62-0
471-34-1
7732-18-5
EINECS
231-908-7
3. Hazards Identification
Oxidiser; eye hazard, corrosive, lung toxin
4. First aid measures
Eye contact: Irrigate thoroughly with water for at least 10 minutes. OBTAIN MEDICAL
ATTENTION.
Inhalation:
Remove from exposure, rest and keep warm. In severe cases, or if exposure has been
great OBTAIN MEDICAL ATTENTION.
Skin contact: Drench the skin thoroughly with water. Remove contaminated clothing and wash before
re-use. Unless contact has been slight, OBTAIN MEDICAL ATTENTION.
Ingestion:
Wash out mouth with water and give plenty of water to drink. DO NOT induce
vomiting. DO NOT give anything by mouth if the person is unconscious or if having convulsions.
OBTAIN MEDICAL ATTENTION.
5. Fire-fighting risks
Special risks:
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Cool exposed containers with water
Suitable extinguishing media:
Do not use dry extinguishers containing ammonium compounds.
6. Accidental release measures
Spill Mitigation Procedures
Air Release
Water Release
Land Spill
Hazardous concentrations in air may be found in local spill area
and immediately downwind. Remove all sources of ignition. Stop
source of spill as soon as possible and notify appropriate personnel.
Dust/vapours may be suppressed by the use of a water fog. All
water utilised to assist in fume suppression, decontamination or fire
suppression may be contaminated and must be contained before
disposal
This material is heavier than water. This material is soluble in
water. Monitor all exit water for available chlorine and pH. Advise
local authorities of any contaminated water release.
Containerise all virgin material in a clean dry container using only
dedicated equipment to clean material up. Containerise all
contaminated material in a clean dry container and remove to a
well ventilated area being sure to not seal tightly. Contaminated
spill material may become a hazardous waste.
Personal Protection for Emergency
Spill & Fire-Fighting Situations
In case of fire, use normal fire fighting equipment as self
contained breathing apparatus. Refer to section 8 for protective equipment in the event of a spill.
7. Handling and Storage
Handling
Do not take internally. Avoid contact with eyes, skin or clothing. Upon contact with
skin or eyes, wash off with water
Storage:
Keep tightly sealed. Store in a clean, dry well ventilated area. Do not store at
temperatures above 52°C
Product Stability and Compatability:
Shelf life limitations
Incompatible materials for packaging
Incompatible materials for storage or transport
Approx 2 years at temperatures above 52°C.
Containers must be clean and free of organic
residues.
Acids, other oxidisers, organic materials, all
corrosive liquids.
8. Exposure controls / personal protection
As appropriate to quantity handles.
Respirator:
Chlorine cartridge full face piece respirator with dust/mist prefilter
Ventilation:
Use local exhaust ventilation to minimise dust levels and chlorine gas.
Gloves:
Neoprene rubber or PVC
Eye protection
Goggles or face shield
Other precautions:
Plastic apron, sleeves, boots – if handling large quantities
9. Physical and chemical properties
Form:
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free flowing granules or tablet form product.
Colour:
Odour:
white
chlorine like
Decomposition temperature: 177°C
pH value:
10-5-11.5 (1% solution at 25°C)
Solubility in water:
Approximately 18% @ 25°C (Product contains calcium hydroxide and
calcium carbonate which will leave a residue).
Density (g/ml):
0.8 (granules), 1.9 (tablets)
Molecular weight:
143 (Active ingredient)
10. Stability and reactivity:
Conditions under which the product may be unstable.
Temperatures above
177 Deg.C (350 Deg.F)
Incompatible materials
Acids, organics, nitrogen containing compounds, dry powder fire
extinguishers (containing mono-ammonium phosphates),
corrosive, flammable, or combustible materials.
Hazardous decomposition products Chlorine gas
Other conditions to avoid
High temperatures > 125°F, high humidity
Summary of reactivity
Oxidiser.
11. Toxicological information
Harmful if inhaled or ingested. Harmful if exposed to skin and eyes.
Signs, symptoms, and effects of exposure.
Inhalation
Acute exposure may cause: severe irritation to respiratory tract resulting in lung
edema which can result in shortness of breath, wheezing, choking, chest pain
and impaired lung function. Inhalation of high concentrations can result in
permanent lung damage.
Eye
Exposure may cause severe irritation and/or chemical burns with corneal
damage. Impairment of vision is possible.
Skin
Acute exposure can cause severe irritation, and/or chemical burns. Chronic
exposure effects would be similar to those from acute exposure except for
effects secondary to tissue destruction. Prolonged skin exposure may cause
dermis destruction with impaired skin regeneration at the site of contact.
Ingestion
Ingestion can cause irritation and/or chemical burns to the gastro-intestinal tract
characterised by nausea, vomiting, diahorrea, abdominal pain, bleeding and
ulceration. Chronic toxicity via this route is unlikely due to its corrosive nature.
Medical conditions aggravated by exposure: Respiratory and skin diseases
Animal Toxicity
Acute Toxicity: Inhalation LC50
c. 1700 mg/m3 (rats, one hour exposure)
Oral LD50
850 mg/kg (rat)
Dermal LD50
> 2g/kg (rabbit)
Mutagenicity:
Calcium hypochlorite has been reported to result in positive
mutagenicity responses in two in vitro assays. The concentration
that produces mutations in these assays was significantly greater
than the concentrations used for disinfection. Based on high
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cellular toxicity in these assays and the lack of mutagenicity
observed in animals, the risk of genetic damage to humans is
judged not significant.
12. Ecological information
Aquatic toxicity:
Aquatic LC50: 0.088mg/l (bluegill)
13. Disposal considerations
Care must be taken to prevent environmental contamination from the use of this material. The user of
this material has the responsibility to dispose of unused material, residues and containers in
compliance with all relevant local and national laws and regulations regarding treatment, storage and
disposal for hazardous and non-hazardous wastes.
14. Transport information
UN-No:
2880
IMO:
5.1/2880
IATA:
2880
Correct technical name:
ADR/RID:
5.1, 15b
IMDG class:
Packaging group: II
Packaging group: II
5.1
15. Regulatory information
Labelling according to EEC directives
Symbol: O,C
Oxidising, Corrosive
R-phrases:
R8-31-34
Contact with combustible material may cause fire. Contact with acids liberates toxic gas. Causes
burns.
S-phrases:
S1/2-26-43-45
Keep locked up and out of reach of children. In case of contact with eyes, rinse immediately with
plenty of water and seek medical advice. In case of fire use water. In case of accident or if you feel
unwell, seek medical advice immediately (show label where possible).
EINECS-No.: 231-908-7
Local regulations
UK Exposure Limits: None assigned
16. Other information
Revision date: 18/09/1994
Date of print: 18/01/2000
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