Re: CS>Chemistry question ?
Thank you Dan:) That's interesting. Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) If we could sell our experiences for what they cost us, we'd all be millionaires. Abigail Van Buren Dan Nave wrote: Buy "Nigari" at an oriental store. It is magnesium chloride used for making Tofu. Dan On Tue, Jan 12, 2010 at 2:41 PM, Annie B Smythe wrote: LMAO Steve, my head is spinning. Just something that is safe to consume without poisoning myself:) Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: Are you considering Magnesium Chloride that is specified as laboratory grade and not just technical grade? Here is a definition of grades from a chemical supplier that defines laboratory grade: " DEFINITION OF GRADES Reagent ACS -- Meets or surpasses latest American Chemical Society standards for purity. Reagent -- Does not exceed maximum limits of significant impurities as stated. Does not have ultrastringent requirements of Reagent ACS. Laboratory Grade -- Equivalent in purity to United States Pharmacopeia (USP) and National Formulary (NF) listings. However, they are not offered for food, drug, or medicinal use of any kind. Practical Grade -- Sufficiently high quality for use in many syntheses and other applications. Technical Grade -- Selected commercial grades, scrupulously clean, and of reasonable chemical purity. Where usable, most economical grade and suitable for educational purposes." There is Magnesium Chloride used for de-icing roads and sidewalks that I would be hesitant to consider for use. I would definitely want to see an MSDS or assay for it. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 9:06 AM To: silver-list@eskimo.com Subject: Re: CS>Chemistry question ? Thank you Steve:) I've been looking for Magnesium Chloride so I can make it up by the half gallon or gallon, and all the 'grade' terminology is a little confusing. I know pharmaceutical grade and food grade are ok for consumption, and I figured lab grade would have to be mostly pure, but I wasn't sure that technical grade wasn't just another name for lab grade, and what do they use technical grade for anyway? I just don't want to use the wrong thing. :/ Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: Here is a good source of info: http://yarchive.net/chem/chemical_grades.html I frequently use reagent grade chemicals internally. If you go to the FDA definition of allowable pharmaceutical grade impurities you will see almost no difference between reagent and pharmaceutical grade chemicals. Actually pharmaceutical grade is often less stringent than reagent grade. That is because reagent grade chemicals are often used in making pharmaceuticals. A main issue is the amount of heavy metals in the chemical. Usually you can request a copy of an assay of the reagent or technical grade chemical and see what if any heavy metals are present. If you use chelators regularly (bentonite, ALA, chlorella, etc) you may not be as concerned about heavy metals. Reagent grade is a higher purity than technical grade. From thr Sci-Tech Encyclopedia: "Commercial chemicals are available at several levels of purity. Chemicals labeled "technical" or "commercial" are usually quite impure. The grade "USP" indicates only that the chemical meets the requirements of the United States Pharmacopeia. The term "CP" means only that the chemical is purer than "technical." Chemicals designated "reagent grade" or "analyzed reagent" are specially purified materials which usually have been analyzed to establish the levels of impurities. The American Chemical Society has established specifications and tests for purity for some chemicals. Materials which meet these specifications are labeled "Meets ACS Specifications." I do use some technical grade chemicals where it is not possible or it is difficult to get reagent grade. And I do use chelators. When deciding to use a technical grade I try to get a copy of an assay. If no assay is available and the amount used is low and the purity is reasonably high I might still use it. There is no absolute answer to your question. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 5:08 AM To: CS List Subject: CS>Chemistry question ? Question for chemistry knowing folks. What's the difference between technical grade a
Re: CS>Chemistry question ?
Buy "Nigari" at an oriental store. It is magnesium chloride used for making Tofu. Dan On Tue, Jan 12, 2010 at 2:41 PM, Annie B Smythe wrote: > LMAO Steve, my head is spinning. Just something that is safe to consume > without poisoning myself:) > > Annie > > "Not everything that counts can be counted, and not everything that can be > counted counts." (Sign hanging in Einstein's office at Princeton) > > > Norton, Steve wrote: >> >> Are you considering Magnesium Chloride that is specified as laboratory >> grade and not just technical grade? Here is a definition of grades from >> a chemical supplier that defines laboratory grade: >> >> " DEFINITION OF GRADES >> >> Reagent ACS -- Meets or surpasses latest American Chemical Society >> standards for purity. >> Reagent -- Does not exceed maximum limits of significant impurities as >> stated. Does not have ultrastringent requirements of Reagent ACS. >> Laboratory Grade -- Equivalent in purity to United States Pharmacopeia >> (USP) and National Formulary (NF) listings. However, they are not >> offered for food, drug, or medicinal use of any kind. >> Practical Grade -- Sufficiently high quality for use in many syntheses >> and other applications. >> Technical Grade -- Selected commercial grades, scrupulously clean, and >> of reasonable chemical purity. Where usable, most economical grade and >> suitable for educational purposes." >> >> There is Magnesium Chloride used for de-icing roads and sidewalks that I >> would be hesitant to consider for use. I would definitely want to see an >> MSDS or assay for it. >> - Steve N >> >> -Original Message- >> From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, >> January 12, 2010 9:06 AM >> To: silver-list@eskimo.com >> Subject: Re: CS>Chemistry question ? >> >> Thank you Steve:) >> >> I've been looking for Magnesium Chloride so I can make it up by the half >> gallon or gallon, and all the 'grade' terminology is a little confusing. I >> know pharmaceutical grade and food grade are ok for consumption, and I >> figured lab grade would have to be mostly pure, but I wasn't sure that >> technical grade wasn't just another name for lab grade, and what do they use >> technical grade for anyway? I just don't want to use the wrong thing. :/ >> >> >> Annie >> >> "Not everything that counts can be counted, and not everything that can be >> counted counts." (Sign hanging in Einstein's office at Princeton) >> >> >> Norton, Steve wrote: >>> >>> Here is a good source of info: >>> http://yarchive.net/chem/chemical_grades.html >>> >>> I frequently use reagent grade chemicals internally. If you go to the >>> FDA definition of allowable pharmaceutical grade impurities you will >> >> see >>> >>> almost no difference between reagent and pharmaceutical grade >> >> chemicals. >>> >>> Actually pharmaceutical grade is often less stringent than reagent >>> grade. That is because reagent grade chemicals are often used in >> >> making >>> >>> pharmaceuticals. >>> A main issue is the amount of heavy metals in the chemical. Usually >> >> you >>> >>> can request a copy of an assay of the reagent or technical grade >>> chemical and see what if any heavy metals are present. If you use >>> chelators regularly (bentonite, ALA, chlorella, etc) you may not be as >>> concerned about heavy metals. >>> Reagent grade is a higher purity than technical grade. From thr >> >> Sci-Tech >>> >>> Encyclopedia: >>> >>> "Commercial chemicals are available at several levels of purity. >>> Chemicals labeled "technical" or "commercial" are usually quite >> >> impure. >>> >>> The grade "USP" indicates only that the chemical meets the >> >> requirements >>> >>> of the United States Pharmacopeia. The term "CP" means only that the >>> chemical is purer than "technical." Chemicals designated "reagent >> >> grade" >>> >>> or "analyzed reagent" are specially purified materials which usually >>> have been analyzed to establish the levels of impurities. The American >>> Chemical Society has established specifications and tests for purity >> >> for >>> >>> some chemical
Re: CS>Chemistry question ?
LMAO Steve, my head is spinning. Just something that is safe to consume without poisoning myself:) Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: Are you considering Magnesium Chloride that is specified as laboratory grade and not just technical grade? Here is a definition of grades from a chemical supplier that defines laboratory grade: " DEFINITION OF GRADES Reagent ACS -- Meets or surpasses latest American Chemical Society standards for purity. Reagent -- Does not exceed maximum limits of significant impurities as stated. Does not have ultrastringent requirements of Reagent ACS. Laboratory Grade -- Equivalent in purity to United States Pharmacopeia (USP) and National Formulary (NF) listings. However, they are not offered for food, drug, or medicinal use of any kind. Practical Grade -- Sufficiently high quality for use in many syntheses and other applications. Technical Grade -- Selected commercial grades, scrupulously clean, and of reasonable chemical purity. Where usable, most economical grade and suitable for educational purposes." There is Magnesium Chloride used for de-icing roads and sidewalks that I would be hesitant to consider for use. I would definitely want to see an MSDS or assay for it. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 9:06 AM To: silver-list@eskimo.com Subject: Re: CS>Chemistry question ? Thank you Steve:) I've been looking for Magnesium Chloride so I can make it up by the half gallon or gallon, and all the 'grade' terminology is a little confusing. I know pharmaceutical grade and food grade are ok for consumption, and I figured lab grade would have to be mostly pure, but I wasn't sure that technical grade wasn't just another name for lab grade, and what do they use technical grade for anyway? I just don't want to use the wrong thing. :/ Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: Here is a good source of info: http://yarchive.net/chem/chemical_grades.html I frequently use reagent grade chemicals internally. If you go to the FDA definition of allowable pharmaceutical grade impurities you will see almost no difference between reagent and pharmaceutical grade chemicals. Actually pharmaceutical grade is often less stringent than reagent grade. That is because reagent grade chemicals are often used in making pharmaceuticals. A main issue is the amount of heavy metals in the chemical. Usually you can request a copy of an assay of the reagent or technical grade chemical and see what if any heavy metals are present. If you use chelators regularly (bentonite, ALA, chlorella, etc) you may not be as concerned about heavy metals. Reagent grade is a higher purity than technical grade. From thr Sci-Tech Encyclopedia: "Commercial chemicals are available at several levels of purity. Chemicals labeled "technical" or "commercial" are usually quite impure. The grade "USP" indicates only that the chemical meets the requirements of the United States Pharmacopeia. The term "CP" means only that the chemical is purer than "technical." Chemicals designated "reagent grade" or "analyzed reagent" are specially purified materials which usually have been analyzed to establish the levels of impurities. The American Chemical Society has established specifications and tests for purity for some chemicals. Materials which meet these specifications are labeled "Meets ACS Specifications." I do use some technical grade chemicals where it is not possible or it is difficult to get reagent grade. And I do use chelators. When deciding to use a technical grade I try to get a copy of an assay. If no assay is available and the amount used is low and the purity is reasonably high I might still use it. There is no absolute answer to your question. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 5:08 AM To: CS List Subject: CS>Chemistry question ? Question for chemistry knowing folks. What's the difference between technical grade and food grade? Is technical grade the same as lab grade? And would technical grade magnesium chloride powder to be unsafe to make a solution from for a person to drink as magnesium supplementation? Any impurities or anything? Annie -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour
RE: CS>Chemistry question ?
Are you considering Magnesium Chloride that is specified as laboratory grade and not just technical grade? Here is a definition of grades from a chemical supplier that defines laboratory grade: " DEFINITION OF GRADES Reagent ACS -- Meets or surpasses latest American Chemical Society standards for purity. Reagent -- Does not exceed maximum limits of significant impurities as stated. Does not have ultrastringent requirements of Reagent ACS. Laboratory Grade -- Equivalent in purity to United States Pharmacopeia (USP) and National Formulary (NF) listings. However, they are not offered for food, drug, or medicinal use of any kind. Practical Grade -- Sufficiently high quality for use in many syntheses and other applications. Technical Grade -- Selected commercial grades, scrupulously clean, and of reasonable chemical purity. Where usable, most economical grade and suitable for educational purposes." There is Magnesium Chloride used for de-icing roads and sidewalks that I would be hesitant to consider for use. I would definitely want to see an MSDS or assay for it. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 9:06 AM To: silver-list@eskimo.com Subject: Re: CS>Chemistry question ? Thank you Steve:) I've been looking for Magnesium Chloride so I can make it up by the half gallon or gallon, and all the 'grade' terminology is a little confusing. I know pharmaceutical grade and food grade are ok for consumption, and I figured lab grade would have to be mostly pure, but I wasn't sure that technical grade wasn't just another name for lab grade, and what do they use technical grade for anyway? I just don't want to use the wrong thing. :/ Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: > Here is a good source of info: > http://yarchive.net/chem/chemical_grades.html > > I frequently use reagent grade chemicals internally. If you go to the > FDA definition of allowable pharmaceutical grade impurities you will see > almost no difference between reagent and pharmaceutical grade chemicals. > Actually pharmaceutical grade is often less stringent than reagent > grade. That is because reagent grade chemicals are often used in making > pharmaceuticals. > > A main issue is the amount of heavy metals in the chemical. Usually you > can request a copy of an assay of the reagent or technical grade > chemical and see what if any heavy metals are present. If you use > chelators regularly (bentonite, ALA, chlorella, etc) you may not be as > concerned about heavy metals. > > Reagent grade is a higher purity than technical grade. From thr Sci-Tech > Encyclopedia: > > "Commercial chemicals are available at several levels of purity. > Chemicals labeled "technical" or "commercial" are usually quite impure. > The grade "USP" indicates only that the chemical meets the requirements > of the United States Pharmacopeia. The term "CP" means only that the > chemical is purer than "technical." Chemicals designated "reagent grade" > or "analyzed reagent" are specially purified materials which usually > have been analyzed to establish the levels of impurities. The American > Chemical Society has established specifications and tests for purity for > some chemicals. Materials which meet these specifications are labeled > "Meets ACS Specifications." > > I do use some technical grade chemicals where it is not possible or it > is difficult to get reagent grade. And I do use chelators. When deciding > to use a technical grade I try to get a copy of an assay. If no assay > is available and the amount used is low and the purity is reasonably > high I might still use it. There is no absolute answer to your question. > > - Steve N > > > -Original Message- > From: Annie B Smythe [mailto:anniebsmy...@gmail.com] > Sent: Tuesday, January 12, 2010 5:08 AM > To: CS List > Subject: CS>Chemistry question ? > > Question for chemistry knowing folks. > > What's the difference between technical grade and > food grade? Is technical grade the same as lab > grade? And would technical grade magnesium > chloride powder to be unsafe to make a solution > from for a person to drink as magnesium > supplementation? Any impurities or anything? > > > Annie -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour
Re: CS>Chemistry question ?
Thank you Steve:) I've been looking for Magnesium Chloride so I can make it up by the half gallon or gallon, and all the 'grade' terminology is a little confusing. I know pharmaceutical grade and food grade are ok for consumption, and I figured lab grade would have to be mostly pure, but I wasn't sure that technical grade wasn't just another name for lab grade, and what do they use technical grade for anyway? I just don't want to use the wrong thing. :/ Annie "Not everything that counts can be counted, and not everything that can be counted counts." (Sign hanging in Einstein's office at Princeton) Norton, Steve wrote: Here is a good source of info: http://yarchive.net/chem/chemical_grades.html I frequently use reagent grade chemicals internally. If you go to the FDA definition of allowable pharmaceutical grade impurities you will see almost no difference between reagent and pharmaceutical grade chemicals. Actually pharmaceutical grade is often less stringent than reagent grade. That is because reagent grade chemicals are often used in making pharmaceuticals. A main issue is the amount of heavy metals in the chemical. Usually you can request a copy of an assay of the reagent or technical grade chemical and see what if any heavy metals are present. If you use chelators regularly (bentonite, ALA, chlorella, etc) you may not be as concerned about heavy metals. Reagent grade is a higher purity than technical grade. From thr Sci-Tech Encyclopedia: "Commercial chemicals are available at several levels of purity. Chemicals labeled "technical" or "commercial" are usually quite impure. The grade "USP" indicates only that the chemical meets the requirements of the United States Pharmacopeia. The term "CP" means only that the chemical is purer than "technical." Chemicals designated "reagent grade" or "analyzed reagent" are specially purified materials which usually have been analyzed to establish the levels of impurities. The American Chemical Society has established specifications and tests for purity for some chemicals. Materials which meet these specifications are labeled "Meets ACS Specifications." I do use some technical grade chemicals where it is not possible or it is difficult to get reagent grade. And I do use chelators. When deciding to use a technical grade I try to get a copy of an assay. If no assay is available and the amount used is low and the purity is reasonably high I might still use it. There is no absolute answer to your question. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 5:08 AM To: CS List Subject: CS>Chemistry question ? Question for chemistry knowing folks. What's the difference between technical grade and food grade? Is technical grade the same as lab grade? And would technical grade magnesium chloride powder to be unsafe to make a solution from for a person to drink as magnesium supplementation? Any impurities or anything? Annie -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour
RE: CS>Chemistry question ?
Here is a good source of info: http://yarchive.net/chem/chemical_grades.html I frequently use reagent grade chemicals internally. If you go to the FDA definition of allowable pharmaceutical grade impurities you will see almost no difference between reagent and pharmaceutical grade chemicals. Actually pharmaceutical grade is often less stringent than reagent grade. That is because reagent grade chemicals are often used in making pharmaceuticals. A main issue is the amount of heavy metals in the chemical. Usually you can request a copy of an assay of the reagent or technical grade chemical and see what if any heavy metals are present. If you use chelators regularly (bentonite, ALA, chlorella, etc) you may not be as concerned about heavy metals. Reagent grade is a higher purity than technical grade. From thr Sci-Tech Encyclopedia: "Commercial chemicals are available at several levels of purity. Chemicals labeled "technical" or "commercial" are usually quite impure. The grade "USP" indicates only that the chemical meets the requirements of the United States Pharmacopeia. The term "CP" means only that the chemical is purer than "technical." Chemicals designated "reagent grade" or "analyzed reagent" are specially purified materials which usually have been analyzed to establish the levels of impurities. The American Chemical Society has established specifications and tests for purity for some chemicals. Materials which meet these specifications are labeled "Meets ACS Specifications." I do use some technical grade chemicals where it is not possible or it is difficult to get reagent grade. And I do use chelators. When deciding to use a technical grade I try to get a copy of an assay. If no assay is available and the amount used is low and the purity is reasonably high I might still use it. There is no absolute answer to your question. - Steve N -Original Message- From: Annie B Smythe [mailto:anniebsmy...@gmail.com] Sent: Tuesday, January 12, 2010 5:08 AM To: CS List Subject: CS>Chemistry question ? Question for chemistry knowing folks. What's the difference between technical grade and food grade? Is technical grade the same as lab grade? And would technical grade magnesium chloride powder to be unsafe to make a solution from for a person to drink as magnesium supplementation? Any impurities or anything? Annie -- If we could sell our experiences for what they cost us, we'd all be millionaires. Abigail Van Buren -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour
