Date: Tue, 15 Jul 2003 13:47:14 -0700
Reply-To: Alistair Bell <albell@UVIC.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@UVIC.CA>
Subject: Re: Cleaning the water holding tank?
In-Reply-To: <5.1.0.14.2.20030715125216.03559388@diversity.nmsrv.com>
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What percent hydrogen peroxide are you using?
As for it not being caustic etc. read MSDS for 30% soln.
Alistair
--
'82 Westy -> diesel converted to gas in '94
albell@uvic.ca
http://members.shaw.ca/albell
MSDS
3. Hazards Identification
EMERGENCY OVERVIEW
Appearance: APHA: 10 max.
Danger! Strong oxidizer. Contact with other material may cause a fire.
Harmful if inhaled. Corrosive. Causes eye and skin burns. May cause severe
respiratory tract irritation with possible burns. May cause severe digestive
tract irritation with possible burns.
Target Organs: None known.
Potential Health Effects
Eye:
Causes eye burns. Produces irritation, characterized by a burning sensation,
redness, tearing, inflammation, and possible corneal injury.
Skin:
Causes skin burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May cause perforation of the digestive
tract. May cause severe digestive tract irritation with abdominal pain,
nausea, vomiting and diarrhea.
Inhalation:
Harmful if inhaled. May cause irritation of the respiratory tract with
burning pain in the nose and throat, coughing, wheezing,
shortness of breath and pulmonary edema. Causes chemical burns to the
respiratory tract. May cause ulceration of nasal tissue, insomnia, nervous
tremors with numb extremities, chemical pneumonia, unconsciousness, and
death.
Chronic:
Prolonged or repeated skin contact may cause dermatitis.
4. First Aid Measures
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower lids. Get medical aid
immediately. Do NOT allow victim to rub or keep eyes closed. Extensive
irrigation is required (at least 30 minutes).
Skin:
Get medical aid immediately. Flush skin with plenty of soap and water for at
least 15 minutes while removing contaminated clothing
and shoes. Immediately 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. Destroy
contaminated shoes.
Ingestion:
Do NOT induce vomiting. 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 immediately. Call a poison control center.
Inhalation:
Get medical aid immediately. Remove from exposure to fresh air immediately.
If not breathing, give artificial respiration. If breathing is difficult,
give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
Notes to Physician:
Treat symptomatically and supportively.
8. Exposure Controls/Personal Protection
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an
eyewash facility and a safety shower.
Exposure Limits
Chemical Name
ACGIH
NIOSH
OSHA - Final PELs
Hydrogen peroxide 1 ppm ; 1.4 mg/m3 1 ppm TWA; 1.4 mg/m3 TWA; 75 ppm IDLH 1
ppm TWA; 1.4 mg/m3 TWA
OSHA Vacated PELs:
Hydrogen peroxide: 1 ppm TWA; 1.4 mg/m3 TWA
10. Stability and Reactivity
Chemical Stability: Decomposes slowly to release oxygen.
Conditions to Avoid: Incompatible materials, light, metals, excess heat,
combustible materials, reducing agents, alkaline materials, strong oxidants.
Incompatibilities with Other Materials: Acids, bases, brass, copper, bronze,
chromium trioxide, iron, lead, silver, zinc.
Hazardous Decomposition Products: Irritating and toxic fumes and gases,
oxygen, hydrogen gas.
Hazardous Polymerization: Has not been reported
11. Toxicological Information
RTECS#:
CAS# 7722-84-1: MX0899000 MX0900000
CAS# 7732-18-5: ZC0110000
LD50/LC50:
CAS# 7722-84-1: Inhalation, rat: LC50 =2 gm/m3/4H; Oral, mouse: LD50 = 2
gm/kg; Skin, rat: LD50 = 4060 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Carcinogenicity:
Hydrogen peroxide -
ACGIH: A3 - Animal Carcinogen
IARC: Group 3 carcinogen
Epidemiology:
No information available.
Teratogenicity:
No information available.
Reproductive Effects:
No information available.
Neurotoxicity:
No information available.
Mutagenicity:
No information available.
Other Studies:
No data available.
on 15/7/03 12:53 pm, Ri wrote:
> At 10:49 AM 7/15/2003, you wrote:
>> Any recommendations/procedures re cleaning/sterilizing the water system?
>> TIA
>
>
>
> Chlorine bleach is the nastiest, most toxic stuff in the world. We
> recommend using a food grade hydrogen peroxide. It works much better, and
> isn't caustic and environmentally destructive.
>
> Worked well for us! Just uses a little bit, be sure to follow the
> directions on the bottle.