Product Identification

Product Name

Amidosulfonic acid

Synonyms

Alprojet W
Amidosulfonic acid
Amidosulfuric acid
Jumbo
Scale Cleen

CAS

5329-14-6

Formula

H3NO3S

Molecular Weight

97.09

EINECS

226-218-8

RTECS

WO5950000

RTECS Class

Agricultural Chemical and Pesticide; Primary Irritant

Merck

12,9090

Beilstein/Gmelin

25628 (G)

EC Index Number

016-026-00-0

EC Class

Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance

A white crystalline solid.

Solubility in water

213 g/L (20 C)

Melting Point

205

Boiling Point

247

Vapor Pressure

0.006 (20 C)

Density

2.15 g/cm3 (20 C)

Partition Coefficient

-.95

Heat Of Vaporization

Heat Of Combustion

-1530 kJ/mol

Usage

As standard in alkalimetry, in acid cleaning, in nitrite removal, in chlorine stabilization for use in swimming pools, cooling towers, paper mills.

Vapor Density

3.3

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause respiratory tract irritation. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. Contact with the liquid or high concentration of vapors may cause blistering of the skin. Concentrated solutions may produce corrosive effects.

Eyes

Causes eye irritation. Concentrated solutions may produce corrosive effects. May cause chemical conjunctivitis.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

Hazards

Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

EC Risk Phrase

R 36/38 52/53

EC Safety Phrase

S 26 28 61

UN (DOT)

2967

Exposure Controls/Personal Protection

Personal Protection

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.

Respirators

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.

Exposure Effects

Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion. Effects may be delayed.

Poison Class

3

Fire Fighting Measures

Flash Point

205

Fire Fighting

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 extinguishing media most appropriate for the surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

14

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Nitrogen oxides, oxides of sulfur, irritating and toxic fumes and gases, ammonia and/or derivatives.

Combustion Products

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Transport Information

UN Number

2967

Hazard Class

8

Packing Group

III

HS Code

2811 19 80